Answer:
11
Step-by-step explanation:
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WILL GIVE BRAINLIEST! PLEASE HURRY!!Keiko and Eric each randomly surveyed people with cell phones. They recorded peoples’ ages (a years) and how many texts they send per day on average (t texts). For their respective data, they each drew a line of best-fit and determined its equation. They then compared equations and made inferences based only on the equations they calculated.
Look at the attachment.
Determine how many texts a 16 year old would send based on the trend line equation for both Keiko and Eric. Round to the nearest whole number.
Keiko = 76, Eric = 100
Keiko = 66, Eric = 64
Keiko = 70, Eric = 46
Keiko = 96, Eric = 100
Answer:
Step-by-step explanation:
For Keiko's trend line equation, we have t = 0.95a + 59. Plugging in a = 16, we get t = 0.95(16) + 59 = 74.2. Rounding to the nearest whole number, we get t ≈ 74.
For Eric's trend line equation, we have t = 0.55a + 90. Plugging in a = 16, we get t = 0.55(16) + 90 = 98.8. Rounding to the nearest whole number, we get t ≈ 99.
Therefore, a 16 year old would send approximately 74 texts per day based on Keiko's trend line equation and approximately 99 texts per day based on Eric's trend line equation. So, the answer is Keiko = 74, Eric = 99.
The solution is, a 16 year old would send approximately 74 texts per day based on Keiko's trend line equation and approximately 99 texts per day based on Eric's trend line equation.
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign. In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.
here, we have,
For Keiko's trend line equation,
we have t = 0.95a + 59.
Plugging in a = 16,
we get t = 0.95(16) + 59 = 74.2.
Rounding to the nearest whole number, we get t ≈ 74.
and, we have,
For Eric's trend line equation,
we have t = 0.55a + 90.
Plugging in a = 16,
we get t = 0.55(16) + 90 = 98.8.
Rounding to the nearest whole number, we get t ≈ 99.
Therefore, a 16 year old would send approximately 74 texts per day based on Keiko's trend line equation and approximately 99 texts per day based on Eric's trend line equation.
So, the answer is Keiko = 74, Eric = 99.
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Darryl deposits $1,500 into a savings account that has a simple interest rate of 2.7%.
Lori deposits $1,400 into a savings account that has a simple interest rate of 3.8%.
If no other transactions are made, who will have more money in their account after 10 years? How much more?
A. After 10 years, Lori will have $27 less than Darryl.
B. After 10 years, Lori will have 1.1% more than Darryl.
C. After 10 years, Darryl will have $16.50 more than Lori.
D. After 10 years, Lori will have $27 more than Darryl.
Answer:she will have $27 more
Step-by-step explanation:
Answer: Lori gets more more in her saving account than Darry has.
Lori has $27 more than Darryl
Step-by-step explanation: Darry does :
Amount of deposits into a saving account = $1500
Rate of interest = 2.7%
Number of years = 10
As we know the formula for "Simple Interest ",i.e.
So, we put the values in this formula to get our answer :
As we know how to calculate the "Amount" i.e.
Similarly,
Lori does:
Amount of deposits into a saving account = $1400
Rate of interest = 3.8%
Number of years = 10
As we know the formula for "Simple Interest ",i.e.
So, we put the values in this formula to get our answer :
As we know how to calculate the "Amount" i.e.
Hence, Lori gets more more in her saving account than Darry has.
Lori has $27 more than Darryl .
You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the box?
What is the decimal expansion for 12
2
3?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me
Answer:
D is the right choice and no you cannot fit the pizza inside the box.
Step-by-step explanation:
D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.
Answer:
I believe the answer is D.
Step-by-step explanation:
Matthew has 9 feet of board. He wants to cut it into 12 equal pieces. Find the length of each piece.
Answer:
0.75 ft or 9 in.
Step-by-step explanation:
9 ft / 12 = 0.75 ft
0.75 ft × 12 in. / ft = 9 in.
Answer: 0.75 ft or 9 in.
9 feet
to find:when divided equally, the length of each piece.
solution:9/12
when simplified= 3/4
in decimal form= 0.75ft
so, the length of each piece is 0.75ft.
What is 7.8×105 hours in days?
3.250×104 days
1.872×104 days
1.872×108 days
3.250×106 days
B.) 3.250*106 days
I figured it out!! Yay!
You take 7.8 and divide it by 24 which will get you 0.325
In order to get it match one of the options, multiply it by 10 (which will add 1 to 105!) Leaving you 3.25*106
Answer:
3.250×10^4 days
Step-by-step explanation:
Find the value of X and a missing angel in this triangle
Answer:
x=175
Step-by-step explanation:
Can someone answer this very fast, please!
Answer:35
Step-by-step explanation:
B+28=63, so B=63-28=35
Which graph represents the equation? y= 2/3x. HURRY PLEASE
Answer: the one in the top right corner
Step-by-step explanation:
so basically when you see 2/3x it can be translated to 3/2 and then you need to graph and see if it goes through 2,3 (i used a graphing calculator lol)
please help I don't get it
13 POINTS !!
Answer:
114
Step-by-step explanation:
The diameter of a hat is 6.8 inches. What is the distance around the hat using π = 3.14? Round to the hundredths place.
2.17 inches
10.68 inches
21.35 inches
36.29 inches
The required distance around the hat is approximately 21.35 inches. Option C is correct.
What is the circumference of the circle?To find the circumference of a circle, we use the formula C = πd, where C is the circumference, π is the mathematical constant pi (approximately equal to 3.14), and d is the diameter of the circle.
Here,
The distance around a circle is given by the formula circumference = π × diameter.
Substituting the given values, we get:
circumference = 3.14 × 6.8
circumference = 21.352
Rounding to the nearest hundredth, we get:
circumference ≈ 21.35 inches
Therefore, the distance around the hat is approximately 21.35 inches.
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A rectangle has a length of 2x+7 and a width of 3x+8.
Write and simplify an expression for the perimeter of that rectangle
pls help
Answer:
2x+7+3x+8=5x+15
A perimeter is a sum of lengths of sides of a lateral.
drid
Cool Down: A Medium Bottle of Juice
A large bottle of juice contains 500 milliliters of juice. A medium bottle contains 70% as much juice as
the large bottle. How many milliliters of juice are in the medium bottle?
0
juice (ml)
09
1009
о
Answer:350ml
Step-by-step explanation:
A percent is a number divided by 100 (1% = 1/100)
So 70% will be 70/100
Therefore you only have to do 70/100 * 500 and you get 350 ml.
Answer:
350 ml
Step-by-step explanation:
Step 1: Multiply 500 by 70.
500 × 7035000Step 2: Move the decimal place two places to the left.
3500.0350.00Therefore, the answer is 350 ml.
Have a lovely rest of your day/night, and good luck with your assignments! ♡
Part 1//
B) Find the constant of proportionality: k=____
C) Where on the graph should the unit rate located? (Enter as an ordered pair, in the form(x,y) ).
Location on graph: ______
D) Write an equation for this proportional relationship, using the correct variables.
Equation: _____
Part 2//
B) Find the constant of proportionality: k=____
C) Where on the graph should the unit rate located? (Enter as an ordered pair, in the form(x,y) ).
Location on graph: ______
D) Write an equation for this proportional relationship, using the correct variables.
Equation: _____
And where do i put the dots fro the graph?
The constant of proportionality for parts per hour is 6.
The constant of proportionality for hours per part is 1/6.
The unit rate should be located at the ordered pair (1, 6).
The unit rate should be located at the ordered pair (6, 1).
An equation for the proportional relationship of parts per hour is P = 6k.
An equation for the proportional relationship of hours per part is H = P/6.
What is a proportional relationship?In Mathematics, a proportional relationship can be modeled by the following mathematical expression:
P = kH
Where:
P represents the number of parts.H represents the number of hours.k is the constant of proportionality.Next, we would determine the constant of proportionality (k) for parts per hour as follows:
Constant of proportionality, k = P/H
Constant of proportionality, k = 30/5 = 42/7 = 48/8
Constant of proportionality, k = 6.
Therefore, the unit rate should be located at (1, 6) and an equation for the above proportional relationship is given by:
P = kH
P = 6k.
Also, we would determine the constant of proportionality (k) for hours per part as follows:
Constant of proportionality, k = H/P
Constant of proportionality, k = 5/30 = 7/42 = 8/48
Constant of proportionality, k = 1/6.
Furthermore, the unit rate should be located at (6, 1) and an equation for the above proportional relationship is given by:
P = kH
H = P/6.
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Help please. Math is HARD
Answer:
Step-by-step explanation:
100% : 6= 16.6%
100%: 3= 33.3%
100%:5= 20% 20%x3=60%
100%:3=33.3% 33.3%x2= 66.6%
Graph the following in cartesian plane. With solution.
1.) 5x - 4y = 20
2.) 3x + 3y = 15
3.) y = 3/4x - 2
4.) y = -3/2x + 3
pls help me I need this pls, I only need the solution, thx
Step-by-step explanation:
1.) 5x-4y=20
y=5/4x-5
5x/4-5=0
x=4
2.) 3x+3y=15
y=-x+5
x+5=0
-x=-5
=x=5
3.) y=3/4x-2
3/4x-2=0
x=0
3x4x/4 -2 x4x-0x4x
3-2x4x=0x4x
3-8x=0
8x=-3
=x=3/8
4.) y=3/2x+3
3/2x+3=0
x=0x
3x2x/2+3x2x=0x2x
3+3x2x=0x2x
3+6x=0
6x=-3
x=_3/6
=x=-1/2
Please help I need help with my homework
Answer:
The measure of the first angle is 32° and the measure of the second angle is 49°. (h = 32° & c = 49°)
Step-by-step explanation:
For the first triangle, we know that when you add up all the angles in a triangle, you'll end up with 180°. Keeping that in mind, all you have to do to find the third angle is add up the two we already know and subtract it from 180°.
1. 58° + 90° = 148° --> I know that the second angle is 90° because it's a right
180° - 148° = 32° triangle.
2. 82° + 49° = 131°
180° - 131° = 49°
Hope this helps,
Hedgehog68
624.98+t=502.13 what is the answer
Answer: t=-122.85
Step-by-step explanation:
you subtract 502.13-624.98= -122.85 but because you have t left over the answer is t= -122.85
A prism has a length of 4 centimeters, width of 2 centimeters, and height of 10 centimeters. Use the prism to complete the statements. The surface area of the prism is cm2. The volume of the prism is cm3.
Answer:
Surface area = 136 cm² Volume = 80cm³
Step-by-step explanation:
Surface Area = face 1 + face 2 + face 3 + face 4+ face 5 + face 6
SA = 2(4) + 2(4) + 2(10) + 2(10) + 4(10) + 4(10)
SA = 8 + 8 + 20 + 20 + 40 + 40
SA = 16 + 40 + 80
SA = 136
----------------------
Volume = l*w*h
Volume = 4*2*10
Volume = 8*10
Volume = 80
Answer:
4
Step-by-step explanation:
*
This is 10 points plz help ( NO LINKS )
( ONLY ANSWER THIS IF YOU HAVE AN EXPLANATION AND IF YOU KNOW WHAT THE ANSWER IS)
Find the perimeter of this shape.
Answer:
draw a line that makes a triangle and rectangle.
hypotenuse= 30
3k-4k-5k triangle
18-24-30
so the short part of triangle is 18 cm
10+10+18+24+30 equals 92
sorry for language I am not familiar with English
the perimeter of this shape is
24+10+10+30+\(\sqrt{30^{2} -24^{2} }\) = 92 cm
Select the expression below that would form an identity with the given expression.
Expression: 18m – 30
Answer:
Nothing further can be done with this topic.
Step-by-step explanation:
You're missing pieces to the question.
Select all the correct answers.
Maya is interning at a law firm over the summer and is paid by the hour. If her hourly wage is $52, which equation represents the proportional relationship between the wages she earns (w) and the number of hours (h)?
w = 52h
w = 26h
1/26w=h
1/52w=h
how do I write numerical expressions involving whole-number exponents
Answer:
i think it's 3 to the power of 2 but in number form, i just write that on here
Step-by-step explanation:
does that help?
Answer:
Umo can you pls talk to me? I feel like you're ignoring me.
Step-by-step explanation:
Melanie was mixing red and white paint to make pink paint. The tables below show the ratios of three different shades of pink she made. Which one is the lightest shade of pink?
Answer:
B
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
can someone help? im not sure about this questons and its getting me so stressed out :( pls help :(
Answer:
Lets start:
Picture 1:-
1. Length of EH= 12cm
2. Angle G= 55 degrees
Picture 2:-
1. Scale factor= 1/4 (I'm not sure about this but this is what I think it is ;-;)
2. Value of y= 28 cm
Picture 3:- [Picture 3 is cropped so I'm guessing its the last one so imma answer those questions :D]
1. Scale factor= 5 (Again I'm not sure but its my best guess)
2. Value of z= 5
Picture 4:-
1. Scale factor= 4 (I'm pretty sure you know that my scale factor answers are guesses so yea ;-;)
2. Value of b= 12
Step-by-step explanation:
Since i can't add links in answers you can watch:
Similar figures
-By The Organic Chemistry Tutor
It'll help you understand how we solve these questions
Well anyways i hope this clears your concepts :D
Answer:
Step-by-step explanation:
EH is 12cm as the shape has been enlarged by scale factor two (all sides have been multiplied by 2).
Angle G remains the same at 55 degrees.
PART A
Scale factor for the triangle = 1/4
Value of y = 28cm
3) z = 5, scale factor = 5
SIMILAR RECTANGLES:
Scale factor = 4
Side b = 12cm
Hope these answers work out for you
Add the expressions.
the quantity negative 7 minus one eighth times p end quantity plus the quantity three fourths times p minus 5 end quantity
negative 5 over 12 times p plus negative 2
5 over 8 times p minus 12
7 over 16 times p minus 2
7 over 8 times p plus negative 12
Answer:
c
Step-by-step explanation:
PROPORTION :))
In a certain neighbourhood the ratio of cats to dogs to squirrels to skunks is 5:4:7:1. If
there are 119 of these animals in all, how many are dogs?
Answer: There are 28 dogs
Step-by-step explanation:
5+4+7+1 = 17
119/17 = 7
7x4(the dogs) = 28
does anyone on here use FLVS?? If so can u help with comprehensive science 5.06 conclusion part?
I dont know this question and i really want to know 51.2+□.85=56.05
Answer:
51.2+4.85+56.05
Step-by-step explanation:
It would be "4.85"
Hope it helped brainiest plz
Answer:
51.2 + 4.85 = 56.05
Step-by-step explanation:
56.05 - 0.85 = 55.2
55.2 - 51.2 = 4
The missing number is 4
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
PLEASE SOLVE!!!! ITS MY LAST QUESTION.
Answer:
0.5
Step-by-step explanation: