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kozerog [31]
3 years ago
15

Amy is training for a half marathon. in practice, she runs 2 miles in 15 minutes. If she continues at the same rate, how many mi

les will she run in 1 hour?
A. 4
B. 8
C. 16
D. 30
Mathematics
1 answer:
kipiarov [429]3 years ago
3 0

Step-by-step explanation:

B. 8

she will run for 8 miles,

<h2>step</h2>

find Amy's speed

convert the minutes into hours by dividing by 60

\frac{2}{15 \times  \frac{1}{60} }  \\  = 8 \: miles \: per \: hour

find the number of miles ran by multiplying the speed by the time, ie

8 \times 1 = 8 \\  \: therefore \: the \: answer \: is \:  \: 8 \: miles

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adoni [48]
I am pretty sure the answer is,

B
4 0
3 years ago
Someone please help and show work
aleksklad [387]

Answer:

a) 4x^{6}

b) 2w^{4}

Step-by-step explanation:

a) multiply the coefficients and add the exponents

(4)(1) · x^{3+3} = 4x^{6}

b) divide the coefficients and subtract the exponents

(14 ÷ 7) · w^{6-2} = 2w^{4}

4 0
3 years ago
Find the slope of the line containing the pair of points.<br> ​(6​,5​) and ​(​0,​0)
GarryVolchara [31]

Answer: 5/6

Step-by-step explanation:

Use slope formula of y2-y1/x2-x1. So here it doesn’t matter which is which so I did (6,5) x1 and y1 and (0,0) x2 and y2

So plugging it in it would be 0-5/0-6 = -5/-6 which simplifies to 5/6

7 0
1 year ago
What are the solutions to the quadratic equation (5y +6) 2= 24?
boyakko [2]

Answer:

y=-2.18,-0.22

Step-by-step explanation:

We have been given the equation

(5y+6)^2=24

Take square root both sides. When ever we take square root, we include plus minus sign

\sqrt{(5y+6)^2}=\pm\sqrt{24}\\\\5y+6=\pm2\sqrt6

Now, subtract 6 to both sides of the equation

5y=-6\pm2\sqrt6

Divide both sides by 5

y=\frac{1}{5}(-6\pm2\sqrt6)

y=\frac{1}{5}(-6+2\sqrt6),y=\frac{1}{5}(-6-2\sqrt6)

In decimal we have

y=-2.18,-0.22



3 0
3 years ago
a box contains 20 blue marbes, 16 green marbles, and 14 red marbles. two marbles are selected at random. let 3 be the event that
Maksim231197 [3]

Answer:

Let E be the event that the first marble selected is green. Let F be the event that the second marble selected is green. A box contains 20 blue marbles, 16 green marbles and 14 red marbles P(F/E)=15/49 because if the first marble selected is green there are 49 in total and 15 are green. I think this is it.

Step-by-step explanation:

6 0
3 years ago
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