Mathematics High School

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 1

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).

Related Questions

pls help me out what up

Answers

Answer:

Answers are below

Step-by-step explanation:

29. 3(4x-5) + 4(2x+6)

Solution: 20 + 9

30. -8(2a - 3b) - 5(6b - 4a)

Solution: 4 − 6

31. 10(5g + 2h - 3) - 4(3g - 4h + 2)

Solution: 38 + 36ℎ − 38

hope this helps :) Let me know if you need any further explanations.

PLEASE HELP

Is th function shown a linear function?

EXPLAIN PLZZ

NO LINK​

Answers

It doesn’t curve or bend so yes this is a linear function.

I need help with this!

Answers

Answer:

Step-by-step explanation:

What is the question?

i’m tryna finish my exit ticket asap please i don’t need no links i just need help and the answer please

Answers

Answer:

B

Step-by-step explanation:

30 months =
years
months

Answers

2 years and 6 months :)

Answer:

2.5 years/2 years 6 months

Step-by-step explanation:

Half year = 6 months

One year = 12 months

Two years = 24 months

30-24=6 months

2 Years + 6 months = 2.5 years/30 months/2 years 6 months

Find the volume of the figure. Use 3.14 for pi

Answers

Answer:

1494.64

Step-by-step explanation:

Divide 28 by 2 = 14

14 times 3.14 times 34

I hope thats right

What is the measure of the given angle in degrees? A=pi/3

Answers

Answer:

A = pi/3 = 1.05°

Step-by-step explanation:

A= pi/3 and pi is 180°
So A=180/3 = 60°

Amare drops a probe into a lake. The elevation of the probe changes
by - 13 feet every second. The probe takes 50 seconds to reach
the bottom of the lake. How deep is the lake? Show your work .​

Answers

Answer:

13 x 50 = 650

Step-by-step explanation:

Answer:

75 ft

Step-by-step explanation:

A traffic camera sits on top of a tower that has a height of 39 ft. The angles of depression of a car on a straight road at the same level as that of the base of the tower and on the same side of the tower are 31°. Calculate the the distance between the base of the poll and the car. Round to the nearest tenth of a foot. *

Answers

Answer:

48ft

Step-by-step explanation:

Distance of car A from the towerConsider ∆ACD tan25 = 50/AC AC  = 50/tan25 = 50/0.4663 = 107.2 ft Distance of car B from the towerConsider ∆BCD tan40 = 50/BC AC  = 50/tan40 = 50/0.8391 = 59.6 ft

Distance from cars A and B AB = AC – BC = 107.2 – 59.6 = 48 ft The distance between the two cars is 48ft

Which of the following are equivalent to the expression 9/4(1.75−2 1/4)?

Answers

Answer: -1 1/8 (Decimal: -1.125)

Hello, I need help with these math questions, can someone help as soon as you can?

Answers

Answer:

1. x<-2 2. -2<_x 3. x<_ 4

Step-by-step explanation:

hope this helps

Can someone please help me answer this question asap thank you . No links please and thank you .

Answers

It’s a 10 to 1 relationship

HELP ME don't put a link i will report you <3
only answer the box that is yellow

Answers

Answer:

Step-by-step explanation:

Answer:

the answer is 9

because 8 8/9 is first

1 plus 8 8/9 is 9

A biologist is studying the growth rate of a bacteria sample. The sample started with a bacterial count of 331. The chemist's data shows the count to be increasing by 6% every 2 hours. At that rate, approximately what is the bacterial count after 6 hours?
A. 418
B. 450
C. 394
D. 470

Answers

A. 418


Step by step:

i need help with all of them lololol

Answers

Answer:

(If you need the actual explanations for each one, just ask in comments)

Step-by-step explanation:

1: D

2: G

3: A (60/100 = 6/10 = 3/5)

4: H (Min = 18, Q1 = 19, Median = 23, Q3 = 24, Max = 26)

5: C (2:6 = 1:3; 3:9 = 1:3)

6: J (2:15 = 10:75; multiply each side by 5)

7: A (A & B: 6*2/3 = 4, 4 < 6, 4 not > 6. C: 6*3/2 = 9, 9 not < 6. D: 6*3/3 = 6 not > 6).

Not super good at understanding surface area yet, someone answer it please.

Answers

It’s 175.5 multiply length x with x height

Write 9^3 as an equivalent expression using repeated multiplication.

Answers

Answer:

9x9x9

Step-by-step explanation:

9x9x9 hope this helps!!!

X-15>-20
Please help first answer gets brainliest

Answers

Answer:

x > -5

Step-by-step explanation:

hope this helps :)

Answer:

x>-5

Step-by-step explanation:

X-15>-20

Add 15 to both sides;

x-15+15=>-20+15

simplify

x>-5

Hope this helped!

Helped by none other than the #QUEEN herself  aka # DrippQueenMo

growth or decay pls answer

Answers

Answer:

exponential decay because the base is less than one

Step-by-step explanation:

Can somebody help me answer this into Y=Mx +B

Answers

Answer: Slope intercept form

Step-by-step explanation:

m=slope

b=y-intercept

ILL MARK BRAINLIEST TO FIRST PERSON THAT ANSWERS CORRECTLY!

Annita baby sits at a rate of $7 per hour. Identify the type of relationship this represents. Explain your answer.​

Answers

Answer: The relationship is proportional.

Step-by-step explanation: Because the baby sitters work corresponds to their hourly pay. (I think)

How many minutes are there in 12.5 hours?

Answers

Answer:

750 minutes

Step-by-step explanation:

Answer:

750 minutes would be your answer

Step-by-step explanation:

A rectangle has a height of x+ 9 and a width of x^2 + 2x
Express the area of the entire rectangle.
Your answer should be a polynomial in standard form.
X^2
+
2x
X
+
9

Answers

Answer:

x³ + 11x² + 18x

Step-by-step explanation:

(x² + 2x)(x + 9)

Step 1: Distribute x²+2x into x + 9.

x³ + 2x² + 9x² + 18x

Step 2: Combine like terms.

x³ + 11x² + 18x

The area of this rectangle is x³ + 11x² + 18x.

Answer:

Area= height x width = (x + 9) (x^2 + 2x) = x^3 + 2x^2 + 9x^2 + 18x = x^3 + 11 x^2 + 18x

Step-by-step explanation:

The height is (x + 9) and the width is (x^2 + 2x) and the the area of the rectangle is equal to: Area= height x width = (x + 9) (x^2 + 2x) = x^3 + 2x^2 + 9x^2 + 18x = x^3 + 11 x^2 + 18x

Evaluate 5!-4!=1

Please help with this thanks

Answers

Answer:

exact form:

1/4

decimal form:

0.25

116= 1

is correct

wieyrb;ewury b2e;qpwiybrq;wiy

What is the value of c in the equation below?
24.22= a^b = 0

Answers

Answer:

There's no c in your uploaded question

Stella needed to get her computer fixed. She took it to the repair store. The technician
at the store worked on the computer for 3.25 hours and charged her $75 for parts.
The total was $188.75. What was the cost of labor, per hour?

Answers

9514 1404 393

Answer:

  $35 per hour

Step-by-step explanation:

The total charge is the sum of costs of parts and labor. If h is the cost of a labor hour, then we have ...

  188.75 = 75 + 3.25h

  113.75 = 3.25h . . . . . . . . subtract 75

  113.75/3.25 = h = 35 . . . divide by the coefficient of h

The cost of labor, per hour, is $35.

What is the value of the fraction below?
0/25

Answers

The value is nothing because the numerator is 0.

somebody answer i need Help​

Answers

Answer:

$5.00

Step-by-step explanation:

$5 because it occurs the most

Answer:

$5

Step-by-step explanation:

The mode is the price that appears the most often in a given list.

PLEAS EHEKP ILL GIVE BRAINLIEST
SHOW WORK SO I CAN UNDERSTAND PLEASE

Answers

Answer:

$49.72

Step-by-step explanation:

The tip is 11% of the price of the pizza.

The price of the pizza is $452.

The tip is 11% of $452.

To find a percent of a number, change the percent to a decimal and multiply by the number. To change a percent to a decimal, divide the percent by 100 which is the same as moving the decimal point two places to the left.

11% of $452 =

= 0.11 * $452

= $49.72

Answer: $49.72

can anyone explain this to me?

Answers

there are 3 angles, the measure of angle 1 is 55.2° and etc, you want the angles to add up to 180° i think

55.2+34.7= 89.9

180-89.9= 90.1

x=90.1
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