Mathematics College

During the first part of a hike,Andre drank 1.5 liters of the water he brought. If this is 50% of the water he brought, how much water did he bring? If he drank 80% of his water on his entire hike, how much did he drink?

Answers

Answer 1

if 1.5 lt is the 50%, he brought twice that amount. It means he brought 3 lt.

If he drank 80% of that. We get that

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Related Questions

How much has the value of y changed between the points (-8,4) and (8,-4)?

Answers

By 8 (down).
Look at the y value only (x,y).
4 and -4. That’s a total of 8 units down

On January 1, it was worth $8,474. On March 1, it was worth $3,323. During February, it decreased by $1,621. During January it decreased by

Answers

Answer:

Step-by-step explanation:

Answer question (i will give thanks and give a branliest who answers it correctly

Answers

Answer:

B because 4n + 2 is the only algebraic expression on there, therefore, B is the answer.

0=9 means no solution one solution or infinite solution?

Answers

Answer:

no solution

Step-by-step explanation:

If you end up with a false equality, then the initial statement is false, meaning that there are no solutions.

WILL GIVE BRAILIEST 70 POINTS First, reflect ABC across the y-axis, then dilate by a factor of ½.

Original Reflection Dilation
A(-1,-4)
B(-3,-2)
C(-1,2)
Is this figure similar or congruent to the original?

WILL GIVE BRAILIEST 70 POINTS First, reflect ABC across the y-axis, then dilate by a factor of . Original

Answers

Answer:

This is the graph one

Step-by-step explanation:

A(-1,-4) -->A' (1,-4)

B(-3,-2) ---> B'(3,-2)

C(-1,2) ---> C(1,2)

What is the range of the function? f(x)=3^x−1−2

Answers

The range of the equation f(x) = 3ˣ ⁻ ¹ - 2 is y > -2

Calculating the range of the equation?

From the question, we have the following parameters that can be used in our computation:

f(x) = 3ˣ ⁻ ¹ - 2

The above equation is an exponential function

The rule of an exponential function is that

The domain is the set of all real numbersHowever, the range is always greater than the constant term

In this case, it is -2

So, the range is y > -2

Answers

Answer:

z=9

Step-by-step explanation:

we are given: 2/3z=6

we need to find what z is by itself

6 is 2/3rds of what the value of z is.

to find z, we need to multiply both sides by 3/2 (the reciprocal of 2/3z, to make the coefficient of 1)

3/2*2/3z=6*3/2

z=9

hope this helps :)

z = 9

Step-by-step explanation:

2/3 . z = 6

2z/3 = 6

Multiple all terms by the same value to eliminate fraction denominator,

3 x 2z/3 = 3 x 6

2z = 18 ( 3,3 got cancelled)

Divide both sides of the equation by the same term,

2z/2 = 18/2

On Simplify,

z = 9.

*(2,2 gets cancelled and 18/2 = 9)

Find sin (theta) if csc (theta) = -23/19.

Answers

Answer: We know that csc(theta) is the reciprocal of sin(theta), so we can start by finding sin(theta) by taking the reciprocal of csc(theta):

csc(theta) = -23/19

1/sin(theta) = -23/19

We can solve for sin(theta) by taking the reciprocal of both sides:

sin(theta) = 1 / (1/sin(theta)) = 1 / (-23/19) = -19/23

Therefore, sin(theta) = -19/23.

Step-by-step explanation:

some adults and children are watching a musical there are n children there are 25 fewer adults

Answers

According to the concept of algebraic expression and arithmetic, the correct answers are A) Number of adults = N - 25. B) Number of adults when N = 124: 124 - 25 = 99

A) Let's denote the number of children as N. Since there are 25 fewer adults than children, the number of adults can be expressed as N - 25.

B) If there are 124 children, we substitute N with 124 in the expression from part A. Thus, the number of adults would be 124 - 25 = 99.

To arrive at these answers, we used the given information that there are "N" children and 25 fewer adults than children. By substituting the value of N, we determined the number of adults in terms of N and then calculated the specific number of adults when N is equal to 124.

Note: The given question is incomplete. The complete question is:

Some adults and children are watching a musical. there are 'N' number of children. There are 25 fewer adults than children.

A) find the number of adults in terms of 'N'.

B) if there are 124 children how many adults are there?

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Using the formula for the difference of squares, calculate: (100 - 3)

(100 + 3).

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Explanations are below

Step 1

(100-3) Observe the equation

Step 2

(100-3) Simplify

100-(+3)

100-3

Answer: 97

I invest $350 in a simple interest account that earns 8%. how much interest will I make after 3.5 years

Answers

Answer:

$98

Explanation:

To determine the simple interest that will be earned on a principal(P), we use the formula:

$Simple\: Interest=\frac{Principal\times Rate\times Time}{100}$

From the question:

• Principal = $350

• Rate = 8%

• Time = 3.5 years

Substituting these values, we have:

$\begin{gathered} Simple\: Interest=\frac{350\times8\times3.5}{100} \\ =\frac{9800}{100} \\ =98 \end{gathered}$

The interest you will make after 3.5 years is $98.

For the given confidence level and values of x and n, find the following.

x=45, n=96, confidence level 95%

Answers

The confidence interval based on the given values (x = 45, n = 96, Confidence level = 95%.

The confidence level (95%), sample size (n = 96), and sample mean (x = 45), we can calculate the margin of error and the confidence interval. Here's how:

1. Margin of Error:

The margin of error represents the maximum expected difference between the true population parameter and the sample estimate. It depends on the confidence level and the standard deviation (which we don't have in this case).

Since the standard deviation is unknown, we can use the t-distribution to estimate it. With a sample size of n = 96, the degrees of freedom are (n - 1) = 95. Considering a 95% confidence level, the critical value for a two-tailed test is approximately 1.984 (referencing a t-distribution table or calculator).

The margin of error (E) can be calculated using the following formula:

E = critical value * (standard deviation / sqrt(n))

However, since we don't have the standard deviation, we can't compute the margin of error in this case.

2. Confidence Interval:

The confidence interval represents a range of values within which the true population parameter is likely to fall.

The confidence interval can be calculated using the formula:

CI = x ± (critical value * standard deviation / sqrt(n))

The confidence interval based on the given values (x = 45, n = 96, confidence level = 95%.

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A number has 7 in its thousands place and is less than 54,00. How many such numbers are there?

Answers

There are 9,000 numbers that have 7 in the thousands of places and are less than 54,000.

Consider the possible digits in the hundreds, tens, and one's places.

Thousands of places: There is only one possibility, which is 7.

Hundreds place: Any digit from 0 to 9 is possible.

Tens place: Any digit from 0 to 9 is possible.

One place: Any digit from 0 to 9 is possible.

Since the number is less than 54,000, the digit in the hundreds place cannot be 5.

So, there are 9 possible digits (0 to 9, except 5) for the hundreds place, and 10 possible digits (0 to 9) for the tens and one's places.

So, the total number of such numbers is:

9 x 10 x 10 x 10 = 9,000

Therefore, there are 9,000 numbers that satisfy the given condition.

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don’t skip this question i have a test plz answer

Bottle A holds 3 more liters of lemonade than bottle B. If the total amount of lemonade in bottles A and B is s 11 liters, how much lemonade is there in bottle B?

Answers

Bottle A-7
Bottle B-4

It would be 3 because bottle a would be 8

solve the inequality
$4g \: \leqslant 10$

$solve the inequality[tex]4g \: \leqslant 10[/tex]$

Answers

The value of the inequality is g≤2.5

What is an inequality?

In mathematics, an inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions. It is used most often to compare two numbers on the number line by their size.

The given inequality is 4g≤10

To solve the inequality, divided bo sides of the inequality by the coefficient of g which is 4

This gives the value

4g/g≤10/4

⇒ that g = 2.5

Therefore the value of the inequality is g≤2.5

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Find the output, y, when the input, x, is -9.
y =

Answers

Answer:

when x=-9, y=1

Step-by-step explanation:

the graph shows when the x is at -9, the y is at 1

Find the value that makes the equation
2d + 4 = 12 true.

Answers

Answer:d=12

Step-by-step explanation:

Roberto notices that his hair is decreasing exponentially at a rate of 60% per year. If he starts with 100,000 hairs on his head, how many hairs will he have after 4 years?

Answers

Answer:

2560 hairs.

Step-by-step explanation:

Let x be time in years and y the number of hairs.

"...exponentially at a rate of 60%", therefore:

$y=100,000(1-0.6)^{x}$

(Check image below to undestand the function).

Now, to find the amount os hairs, substitute the value of x by 4 and calculate:

$y=100,000(1-0.6)^{4}\\\\y=2560$

Roberto notices that his hair is decreasing exponentially at a rate of 60% per year. If he starts with

need help, will mark brainliest

Answers

Answer: rhombus, parallelogram, quadrilateral

Step-by-step explanation:

All sides are =, so rhombus, and it has to be a parallelogram, and it has four sides, so quadrilateral

In Bridget's class, 35% of the students chose pizza as their favorite food. If 14 of the students chose pizza as their favorite food, how many students are in the class?

Answers

Answer:

40 students are in the class :)

Step-by-step explanation:

35%=14

1%=14/35=0.4

0.4*100=40=100%

∆ABC is dilated using a scale factor of 12 to produce ∆A'B'C'.
Select all of the statements that apply to the transformation.

m∠A > m∠A' and m∠B > m∠B'

m∠A < m∠A' and m∠B < m∠B'

m∠A = m∠A' and m∠B = m∠B'

area of △ABC < area of △A'B'C'

∆ABC ≅ ∆A'B'C'

∆ABC ~ ∆A'B'C'

Answers

Answer:

C, F.

Step-by-step explanation:

All angle measures are preserved in a dilation. And if all angle measures are preserved, it makes the triangles similar by the AA similarity theorem.

Chose a definition for the function

Answers

Answer: D

It's D because the left piece only works when x<2 (not x≤2) and that left piece has a y-intercept of (0,2), making the left piece's equation "x+2 when x<2".

what is 36x45 please help me

Answers

Answer:

1620

Step-by-step explanation:

Which coordinate pair is a solution of the linear
equation below?
-X + 3y = 21
Click on the correct answer.
(3,-8)
(-3,8)
(3,8)

Answers

Answer:

slope is 4/3 and y intercept is -7

Step-by-step explanation:

3y+21=4x.........now subtract 21 from each side

3y=4x-21......now divide all terms by 3

y=%284%2F3%29x-7......there ya go ...slope is 4/3 and y intercept is -7

Answer:

B (-3,8)

Step-by-step explanation:

awnser A is incorrect because if you switch out the x for 3 and the y for -8. The equation would look like -3+3×(-8)=21. and after multiplying 3×-8 which equals -24. The equation turns into -3+(-24)=21 . And after adding -3 and -24 you get -27=21

awnser B is correct because if you switch out the x for -3 and the y for 8. The equation would look like -3+3×8=21. After multiplying 3×8 which equals 24. The equation turns into -3+24=21. And after adding -3and 24 which is pretty much subtracting you get 21=21.

Best apologies if incorrect

find the third, fourth, and fifth terms of the sequence defined by
a1 = 1, a2 = 3,
and
an = (−1)nan − 1 + an − 2
for
n ≥ 3.

Answers

The third term (a3) of the sequence is -8, the fourth term (a4) is 35, and the fifth term (a5) is -183. These values are obtained by applying the given formula recursively and substituting the previous terms accordingly. The calculations follow a specific pattern and are derived using the provided formula.

The sequence is defined by the following formula:

a1 = 1, a2 = 3,

and

an = (-1)nan - 1 + an - 2 for n ≥ 3.

To find the third term (a3), we substitute n = 3 into the formula:

a3 = (-1)(3)(a3 - 1) + a3 - 2.

Next, we simplify the equation:

a3 = -3(a2) + a1.

Since we know a1 = 1 and a2 = 3, we substitute these values into the equation:

a3 = -3(3) + 1.

Simplifying further:

a3 = -9 + 1.

Therefore, the third term (a3) is equal to -8.

To find the fourth term (a4), we substitute n = 4 into the formula:

a4 = (-1)(4)(a4 - 1) + a4 - 2.

Simplifying the equation:

a4 = -4(a3) + a2.

Since we know a2 = 3 and a3 = -8, we substitute these values into the equation:

a4 = -4(-8) + 3.

Simplifying further:

a4 = 32 + 3.

Therefore, the fourth term (a4) is equal to 35.

To find the fifth term (a5), we substitute n = 5 into the formula:

a5 = (-1)(5)(a5 - 1) + a5 - 2.

Simplifying the equation:

a5 = -5(a4) + a3.

Since we know a4 = 35 and a3 = -8, we substitute these values into the equation:

a5 = -5(35) + (-8).

Simplifying further:

a5 = -175 - 8.

Therefore, the fifth term (a5) is equal to -183.

In summary, the third term (a3) is -8, the fourth term (a4) is 35, and the fifth term (a5) is -183.

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A bowling alley charges 3.25 to rent shoes and an additional 1.25 for each game of bowling played. Jordan spent a total of $17. Write an equation to find n the number of games bowled

Answers

$3.25 + $1.25n= $17 should be jt

max is thinking of a number which he calls n

Answers

Answer:

what are you trying to ask?

Step-by-step explanation:

7 filler filler filler

find the area of a rectangle with a length of 10 inches and a width of 4 inches

Answers

Answer:

40 in²

---------------------

Formula for area of a rectangle with dimensions l and w is:

A = lw

Substitute 10 for l and 4 for w:

A = 10*4A = 40 in²

in the diagram at the right, the length of a square is (3x+7) units. The dimensions of the cut-out rectangle are x by (2x+5) units. Which choice expresses the area of the shaded regions, in square units?

Answers

$ {(3x + 7)}^{2} - ((2x + 5) \times x) $

$ = 7 {x}^{2} - 5x + 49$

evaluate the expression 4 ÷ 1/3

Answers

Answer:

Step-by-step explanation:

4 divided by 1 third is 12

12 I think! Hope this helps!:)

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