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creativ13 [48]
3 years ago
13

A road sign drives information about traffic on busy highways. One sign shows "15 miles in 20 minutes ." What is this speed in m

iles per hour?
Mathematics
1 answer:
evablogger [386]3 years ago
4 0

Answer:

45 miles per hour.

Step-by-step explanation:

you have to times 15 by 3 to get 45

and 20 times three is 60

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325 students and 36 students are going to college. What’s that percentage?
aleksklad [387]

Answer: 11% of students go to college

Step-by-step explanation: So simply take 36/325 since only 36 are going to college, divide and you get roughly 11%

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3 years ago
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A family consists of a father, a mother and 2 children. What is the probability that all 2 children are boys?
pashok25 [27]

Answer:

¼

Step-by-step explanation:

The probability of having a boy is ½ and that of a girl is ½.

Probability of boy, boy is (pb*pb) and given pb to be ½ then we can prove the point as follows

For these two children

The options are as follows

1 boy(first) and 1 girl

2 boys

2 girls

1 girl( first) and 1 boy

These are four possible options and the option for two boys is 1 out of the four.

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3 years ago
F(x)=17-5x at x=8 Help me plz​
OLEGan [10]
The derivative is -5
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3 years ago
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LOTS OF POINTS!!! HELP WITH 7 ANd EXPLAIN!!
saveliy_v [14]

Answer:

w=4

Step-by-step explanation:

The surface area of a prism is SA= 2lw+2lh+2hw

We are trying to find out the width if the SA is 240 square inches, length is 12 inches, and the height is 5 inches. Let's plug these numbers into the equation.

240=(2*12*w)+(2*12*5)+(2*5*w)

          24w+120+10w

240= 34w+120

-120           -120

120= 34w

120/34 = 34w/34

w is approximately equal to 3.5 which can be rounded to 4

w=4

Hope this is right! It was confusing at first but I understood it!

3 0
4 years ago
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