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2 years ago

6

Benji has 48 marbles.1/4 of them are red and the rest are blue.What is the difference in the number of red and blue marbles he h

as?

1 answer:

eduard2 years ago

8 0

Answer:

24

Step-by-step explanation:

1/4 * 48 = 12

12 marbles are red.

48 - 12 = 36

36 of the marbles are blue.

Difference = Blue - Red

Difference = 36 - 12

Difference = 24

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Simple proportions.

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or
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2 years ago

Find the values of a and b such that

Varvara68 [4.7K]

Answer:

a = 1.5

b = 1.75

Step-by-step explanation:

First, we need to solve $(x+a)^2$ and replace the result in the initial equation as:

$x^2+3x+4=(x+a)^2+b\\x^2+3x+4=x^2+2ax+a^2+b$

Then, this equality apply only if the coefficient of $x$ is equal in both sides and the constant is equal in both sides.

It means that we have two equations:

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Finally, replacing the value of a in the second equation and solving for b, we get:

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2 years ago

The sum of 5.5 and twice a number is -10

elena-s [515]

The answer is n= 7.75.

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1 year ago

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May someone please help me with this :)

CaHeK987 [17]

1. The perimeter = 3.7 + 3.7 + 2.8 + 2.8
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2 years ago

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