Mathematics High School

Marco is interviewing classmates for his newspaper article. He needs to interview 30 people. Every interview takes Marco 7.2 minutes to complete. Last week Marco completed 40% of the interviews needed. How many people did Marco interview last week?

Answers

Answer 1

Answer:

12

Step-by-step explanation:

This is just looking for 40% of 30 people, so 30 * 0.4 should give you the answer, 12 people.

Related Questions

John and Paul both run on the same track each morning. The ratio of the number of miles John runs to the number of miles Paul runs is 5:8.

Answers

Answer:

Step-by-step explanation:

For example,

Solution: Finding a unit rate

If we divide 150 by 20, we get the unit rate for the ratio, 150 minutes for every 20 miles.

150÷20=7.5

So the runner is running 7.5 minutes per mile. We can multiply this unit rate by the number of miles:

7.5 minutes mile × 6 miles = 45 minutes

Thus it will take her 45 minutes to run 6 miles at this pace.

If it takes her 45 minutes to run 6 miles, it will take her 45÷3=15 minutes to run 6÷3=2 miles at the same pace.

If it takes her 15 minutes to run 2 miles, it will take her 4×15=60 minutes to run 4×2=8 miles at the same pace. Since 60 minutes is 1 hour, she is running at a speed of 8 miles per hour.

We found her pace in minutes per miles in part (a).

16 cars are parked if 1/4 of them are blue how many cars are blue

Answers

Answer: 4

Step-by-step explanation:

Answer:4

Step-by-step explanation: for example, you have 1/4 if you double that you get 2/8, triple it would be 3/12, next would be 4/16

find the measure of angle b (image below)

Answers

Answer:

123+b=180 (being sum of straight angle)

b=180-123

b=57

Find the distance between the points (1,0) and (2,-2)
Distance = ?
please help!!!!​

Answers

Answer:

√5

Step-by-step explanation:

use distance formula

Square root of 5 is the exact form and 2.23 is the decimal form

How many solutions does this equation have?

6b = 3b + 3b

is there a solution

Answers

Answer:

Yes

The answer is 1

Step-by-step explanation:

pls answer 13 points!! :)

Answers

Answer:

140 lb.

Step-by-step explanation:

Answer:

140 pounds

Step-by-step explanation:

75% of 80 is 60

100% of 80 is 80

80+60 = 140

use prime factorization to find square root of 196

Answers

Answer:

14

Step-by-step explanation:

You should always specify if you want an exact answer or a rounded one. I'll assume the former.

Prime Factors

196 = 2 * 98196 = 2 * 2 * 49196 = 2 * 2 * 7 * 7

Rule

For every 2 factors under the root sign, take 1 outside the root sign and throw the other one away.

Solution

[tex]\sqrt{2 * 2 * 7 *7}[/tex]

2 * 7 * √1

14

Plss I need this rnnn

Answers

Answer:

x= 65

Step-by-step explanation:

3x-15=180

add 15 both sides

3x= 195

divide by 3

x=65

the answer for x would be 65 (x=65

Please help solve correctly. NO links or files. Correct answers only if not report. I will even give an additional 10 if correct.

Answers

Answer: 228 cm

hope this helped :)

Find the area of the figure.

40.8 cm2

1128 cm2

47.52 cm2

33.7 cm2

Answers

Answer:

answer is 47.52 cm2

Step-by-step explanation:

follow me please

Michael returned a bag of cans and received $4.65 back. If the deposit for each can was $0.05, how many cans did he return? (answer pls

Answers

Answer:

The Answer is 93 Cans

Step-by-step explanation:

4.65 divided by 0.05 is 93

Brainliest? :3

solve the question z + 18 = 27.

Answers

9???????????????????????????????

Answer:

I'm going to guess that you are trying to find z. If so, Z is 9.

Step-by-step explanation:

Z + 18 = 27

Subtract 18 on both sides

Z + 18 = 27

Z - 18 = - 18

Z = 9

HELPPOO MEEEEE plessss

Answers

the answer is yes. Why? Because if you move a vertical line across the graph, at any given moment, it only touches one point. If it touched more than one point it wouldn't be a function.

Please help me as soon as possible; your help is highly appreciated .The topic is Probability. I will give 5 stars rating and 15 points to whoever helps me first ,and correctly does so.NO LINKS OR I WILL REPORT!!!

Answers

Answer:

1/3 because he took one red and there were 4 but now there is 3.

What value of x makes the equation -2/3x + 3 1/3x - 1/2 = -1/3x + 5 1/2 true? Please help ASAP!!!!!!!!

Answers

Answer:

x = 2

Step-by-step explanation:

The steps of the solution in the photo above

I hope that is useful for you :)

can someone please help me with this:

x/4 ≤ -2

Answers

-8(super duper sorry if you get it wrong I tried my best)

y=330(1.06)^x
answer​

Answers

Answer:

349.8^x

Step-by-step explanation:

330*1.06=349.8

Answer:

6% increase

Step-by-step explanation:

Please help me! I need this done in 10 mins.

Answers

Answer:

I'm pretty sure the answer is 14m

Step-by-step explanation:

All you have to do is add the numbers together.

Hope this helps!

Answer:

The answer is 28.5

Step-by-step explanation:

Break apart the shapes then add their areas

Rectangle: 3 * 6 = 18

Top triangle: 6 * 2 = 12 / 2 = 6

Triangle on the right: 3 * 3 = 9 / 2 = 4.5

Total area = 28.5 meters squared.

HELP PLS ITS URGENT !!

Answers

Answer:

I think it'll be D

Step-by-step explanation:

srry if wrong

hope this helps

Help on these two pleaseeeeeeeeeee

Answers

4. 2k-13
Hope this helps!

a line is reflected. Which of these could be the result? Pls help

Answers

Answer:

A

Step-by-step explanation:

Answer:

The answer is A.

Step-by-step explanation:

AP EX

What is the measure of the angle fgb? Can someone please help asap ill mark brainlist!!!

Answers

Answer:

The measure is 145

Step-by-step explanation:

Answer:

145

Step-by-step explanation:

The total sum of angles around a point is 360 degrees.

Simplify the following expressions: 1/3(6a+12)+3a

Answers

Answer in simplified expression: 5a+4

The simplified answer is 5a + 4

The length of a rectangle is 1 meter less than twice its width. The perimeter of the rectangle is 40 meters. What are the dimensions of the rectangle?

Answers

So 1 is blank and two is 40 so DO IT URSELF STOP BEING LAZYYY

Solve for x

(3x-4)/14=9/10

Answers

Answer:

x=5.53333333333333333333333333333333333333333

Step-by-step explanation:

cross multiply and solve:

30x-40=126

30x=166

x=5.533333333333333333

What are the numerical measures of each angle in the diagram? ∠1 and ∠3 measure degrees. ∠2 and ∠4 measure degrees.

Answers

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Answer:

29 degrees and 151 degrees!

Step-by-step explanation:

help! brainliest!!! picture below

Answers

the answer to this question is c. which is 18

what is the solution to the equation 3x + 15 = 9

Answers

Answer:

3x + 15 = 9

3x = 9 - 15

3x = -6

x = -6/3

x = -2.

Line A is perpendicular to Line B. If the slope of A is -1/7, what is the slope of Line B?

Answers

Answer:

m = 7

Step-by-step explanation:

Perpendicular slopes are negative reciprocals so:

m of A = -1/7

m of B = 7

How many more brooms must each earn in order to have enough credit to get a month off with pay?

Answers

Answer:

5

Step-by-step explanation:

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