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IRISSAK [1]
3 years ago
5

25 is 45% of what number

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
6 0

Answer: 55.56

Step-by-step explanation:

Let the unknown number be k

(45 x k) / 100 = 25

45k/100 = 25

multiply both sides by 100

45k = 25 x 100

45k = 2500

divide both sides by 45

k = 2500/45

k = 55.56

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Please help I need to solve this problem and I just need the answer little bit of explanation too
bija089 [108]

Answer:

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Step-by-step explanation:

replace x with -7 because (x= -7) and the rest is a simple maths

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3 years ago
Five notebooks cost $20 at this rate how much would 4 notebooks coat?
vagabundo [1.1K]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
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4. What are the coefficients in the polynomial 7x² - 4x + 6? (1 poin
skad [1K]

Answer:

D.) 7 and -4

Step-by-step explanation:

Coefficients are numbers placed directly before a variable.

(7) is a coefficient because it is placed before x².

(-4) is a coefficient because it is placed before x. The negative is included.

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5 0
2 years ago
Does 2, 5, and 7 make a right triangle
MakcuM [25]

Answer:  No, we don't have a right triangle

==========================================================

Explanation:

If a triangle with sides a,b,c makes the equation a^2+b^2 = c^2 true, where c is the longest side, then this triangle is a right triangle. This is the converse of the pythagorean theorem.

Here we have a = 2, b = 5 and c = 7.

So...

a^2+b^2 = c^2

2^2+5^2 = 7^2

4+25 = 49

29 = 49

The last equation is false, so the first equation is false for those a,b,c values. Therefore, we do <u>not</u> have a right triangle.

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

In contrast, consider the classic 3-4-5 right triangle

a = 3, b = 4 and c = 5 would make a^2+b^2 = c^2 true because 3^2+4^2 = 5^2 is a true equation (both sides lead to 25).

6 0
2 years ago
Find the measure of each angle indicated.
NISA [10]

Answer:

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Step-by-step explanation:

6 0
3 years ago
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