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alisha [4.7K]
3 years ago
7

At a math competition two students can answer 40 questions in one hour at the same rate how many questions can five students ans

wer in 15 minutes
Mathematics
1 answer:
igor_vitrenko [27]3 years ago
7 0

Answer:

25 questions  

Step-by-step explanation:

2 students can answer 40 questions in 1 h.

1  student   can answer 20 questions in 1 h (60 min).

1  student   can answer   5 questions in ¼ h (15 min).

5 students can answer 25 questions in ¼ h.

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Candace has $20 more than Amar. Their combined money totals $95. Write a system of equations represents this situation
STALIN [3.7K]

Answer:

Candace has $57.5 and Amar has $37.5.

Step-by-step explanation:

x+(x+20)=z

x+20=y

x+y=z

--------------

2x+20=95

2x=95-20

2x=75

x=75/2

x=37.5

37.5+20=y=57.5

5 0
3 years ago
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Which equation has roots at the end of -2 and 3
taurus [48]

Answer:

the answer is c

Step-by-step explanation:

4 0
3 years ago
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30 dimes to 55 dimes
puteri [66]
55-30=25
So it is + 25 dimes
5 0
3 years ago
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M(x)=−(x−5) 2 +25m, left parenthesis, x, right parenthesis, equals, minus, left parenthesis, x, minus, 5, right parenthesis, squ
Aleksandr [31]

Answer:

25

Step-by-step explanation:

Given the function that represents the amount of mosquitoes as;

M(x) = -(x-5)² + 25

To get the maximum mosquitoes possible, we need to first find x;

At the maximum dM/dx = 0

dM//dx = -2(x-5)

0 = -2(x-5)

-2(x-5) = 0

-2x + 10 = 0

-2x = -10

x = 10/2

x = 5

Substitute x = 5 into the function;

M(5) = −(5−5)² +25

M(5) = 0+25

M(5) = 25

Hence the maximum number of mosquitoes is 25

8 0
2 years ago
What is the measurement of abd <br><br>​
belka [17]

Answer:

it is 23. always remember it's supposed to add up to 180. So add up all your numbers and subtract the total from 180 to get your answer

4 0
2 years ago
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