3 questions, 15 points pr question if someone answers these 3 questions correctly. Please help!1: The formula v=lwh is used to calculate the volume of a rectangular prism. What is the equation solve for h?

A: Vlw=h
B: lw/v=h
C: V/lw=h
D: Vh=lw

2: What is the x=y+z solved for z?

A: x+y=z
B: x/y=z
C: y/x=z
D: x-y=z

3: In the formula rt=d, r is rate, t is time, and d id distance. What is the rate of the runner who completes 7.5 miles in 1.5 hours?

A: 11.25 mph
B: 9.0 mph
C: 6.0 mph
D: 5.0 mph

Answers

Answer 1

Answer: 1. C. V/Iw=h because you divide the sides by 'Iw'

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Suppose that Sahil knows that 45 people with the ages of 18 to 19 voted. With out using a calculator, he quickly says then 135 people with the ages of 30 to 49 voted. Is he correct? How might shail have come up with his answer?( I have a chart and one thing that is a clue is that the ages 18 to 29 is 10% ) (Ages 30 to 49 is 30%) please help!I know that he did 45 times 3 to get the 135 because he though since 10% is 45 people he could multiply by 3 & get his answer. Help!!!
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There are 25 students performing in the holiday concert. Of the students, 11 are boys. What percent of the students are boy's? Please show work

Answers

There are 25 students performing in the holiday concert. Of the students, 11 are boys. The percentage of students that are boys are 44%

From the given information;

In a holiday concert, there are 25 students participating actively in it.

If 25 students are equivalent to 100 percent;

The percentage for one student will be:

$\mathbf{= (1 \ student * 100 \%)/(25 \ students)}$

= 4%

The percentage of 1 student = 4%.

Now, of the students, 11 are boys and we are to determine the percentage of students that are boys:

∴

The number of students that are boys = 11 × 4%

= 44%

Therefore, we can conclude that the number of students that are boys is 44%.

Learn more about percentage here:

brainly.com/question/2155156?referrer=searchResults

Total students = 25

Boys = 11

Girls = 25-11 = 14

To find the percent of boys, you need to do:

11/25 * 100

1100/25 = 44

Therefore, 44% of boys are there in class.

Ignoring air resistance, how long would it take a
dropped penny to fall 100 ft on Earth?

Answers

The answer to your question is 2.5 seconds.

Answer: 2.5

Step-by-step explanation:

45 is 15% of what number

Answers

45 = 15% of number
45 = 15% × n
15% = $(15)/(100)$ = 0.15

45 = 0.15n

$(45)/(0.15)$ = $(0.15n)/(0.15)$
0.15 and 0.15 cancels out

300 = n

15% of 300 is 45

45 is 155 of 300

15% of a number is 45
15% × x = 45
x = 45 ÷ 15%
x = 45 ÷ 15/100
x = 45 × 100/15
x = 4500/15
x = 300

Check:
15% × 300
= 15/100 × 300
= 15 × 3
= 45

45 is 15% of 300.

1) Order the animals by sleep time from least to greatest.2) Estimate the proportion of the day that you sleep.
3) Where do you fit on the ordered list?
Dolphin= 0.433 Lion=56.3% Rabbit= 19/40 Squirrel= Tiger=65.8%

Answers

The way to line the animals is to put them in order going down. 0.433 56.3% 19/40 65.8%. Then you try to figure out what you need to convert so that you can get your answer. 56.3% changes to 0.563 because you move the decimal two places to the left. 65.8% changes to 0.658 and 19/40 is 0.475. 0.433 0.563 0.475 0.658. Now you compare each row to figure them out. When you do that your answer will be 0.433, 0.475, 0.563, and 0.658. I sleep about 9/24 of the day which is 0.375 and I will fit right befor 0.433.

What does the fraction 2 1/9 minus 7/6 equal