3 years ago

Solve using a numberline

Mathematics

1 answer:

kobusy [5.1K]3 years ago

4 0

So what's the problem?

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A grade has 81 girls and 72 boys. The grade is split into groups that have the same ratio of girls to boys as the whole grade. H

Aloiza [94]

Answer:

Pretty sure it is 18 girls

Step-by-step explanation:

81 girls: 72 boys

72 boys /16 boys = 4.5

81 girls / 4.5= 18 girls

so 18 girls:16 boys

pls mark me brainliest :)

4 0

3 years ago

Read 2 more answers

Please help me please

lbvjy [14]

60 because area of a rectangle is l*b*w. So 6*2*5 will equal 60

6 0

2 years ago

Factorise 3x^3 - 12xy^2

igomit [66]

Answer:

we can conclude that:

$3x^3\:-\:12xy^2=3x\left(x+2y\right)\left(x-2y\right)$

Step-by-step explanation:

Given the expression

$3x^3-12xy^2$

Let us factorize the expression

$3x^3-12xy^2$

Apply the exponent rule: $a^{b+c}=a^ba^c$

$3x^3\:-\:12xy^2=3xx^2-12xy^2$

Rewrite 12 as 4 · 3

$=3xx^2-4\cdot \:3xy^2$

Factor out the common term 3x

$=3x\left(x^2-4y^2\right)$

$\mathrm{Apply\:Difference\:of\:Two\:Squares\:Formula:\:}x^2-y^2=\left(x+y\right)\left(x-y\right)$

$=3x\left(x+2y\right)\left(x-2y\right)$

Therefore, we can conclude that:

$3x^3\:-\:12xy^2=3x\left(x+2y\right)\left(x-2y\right)$

8 0

3 years ago

Which relation is a function?

guapka [62]

Answer:

A. For a function to be a function, the x's cant repeat. ( don't know if that hans anything to do with the question lol) But the answer is A.

Step-by-step explanation:

7 0

3 years ago

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A baseball pitcher won 80% of the games he pitched. If he pitched 35 ballgames, how many games did he win?

andrezito [222]

If he won 80% of the games, it means that you can multiply 35 by .8 for the answer. (28 games) Hope this helped! :)

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3 years ago