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alisha [4.7K]
2 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]2 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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What expression is equivalent to 24+30
worty [1.4K]
1) 2(30x-24)
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2) 3(20x-16)
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3) 4(15x-12)
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Simplify
60x-48
12(5x-4)
Answer: 12(5x-4)
6 0
3 years ago
write an expression for the new balance using as few terms as possible. A checking account has a balance of -$126.89. A customer
Nutka1998 [239]

Answer:

New balance = -151.89 + 4.5x

(where x is the value of the smaller deposit)

Step-by-step explanation:

The inicial balance was -126.89.

Then, it were made two deposits, one with the value of x, and one that is 3 1/2 times the other, that is, 3.5x.

Then, the customer made a withdraw of $25.

So, The new balance can be calculated as:

New balance = inicial balance + x + 3.5x - 25

New balance = -126.89 + 4.5x - 25

New balance = -151.89 + 4.5x

8 0
3 years ago
Can sombody help me??
Maksim231197 [3]

Answer:

D. Both factors are negative, so the product will be positive.

4 0
2 years ago
Read 2 more answers
If Myron receives 10 votes from his class of 25 students what percentage does he receive
Vsevolod [243]

Answer:

Myron received 40% votes.

Step-by-step explanation:

Myron receives 10 votes from his class of 25 students and we have to calculate the percentage of the vote received.

Now we will use unitary method to calculate the percentage.

∵ Out of 25 students Myron received votes of = 10 students

∴ Out of 1 student Myron received votes = 10/25 students

∴ Out of 100 students Myron received votes = 10×100/25 = 40%

Myron received 40% votes.  

6 0
3 years ago
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Does tis table represent a function ?
frutty [35]
The answer is A. This can be seen in the table where y can be both 4 and 3 for when x = 3. In a function, an output can have more than one input, but an input can have have only one output.
7 0
3 years ago
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