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3 years ago

A father is 60 years old just son is half his age how old was the boy when his father was four times his age

Mathematics

1 answer:

gayaneshka [121]3 years ago

6 0

So, what you would have to do is figure out how old he is not which is 30 yrs old because it is half of 60.

So, after this you would have to find a number that would go into 60 four times which is 15.

So, your answer would be 15.

HOPES THIS HELPS!!!!

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Give an equality that represents the phrase the sum 1 and y is greater than or equal to 9.

raketka [301]

That would be 1+y≥9

the one and the y go on one side and the nine on the other

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3 years ago

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IRISSAK [1]

Answer:

see explanation

Step-by-step explanation:

The 2 angles form a right angle, thus their sum is 90°, hence

4x + 7 + 35 = 90

4x + 42 = 90 ( subtract 42 from both sides )

4x = 48 ( divide both sides by 4 )

x = 12

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To calculate the slope m use the slope formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (1, 4) ← 2 points on the line

m = $\frac{4-0}{1-0}$ = $\frac{4}{1}$ = 4

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3 years ago

-30 + 5a < 16<br> A. a 9.2<br> C.<br> a < 9.2<br> a> -2.8<br> a < -2.8

Goryan [66]

Answer:

-30 + 5a < 16

5a < 46

$a < \frac{46}{5}$

a < 9.2

Hope this help...

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2 years ago

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sesenic [268]

Answer:

I cant see the image

Step-by-step explanation:

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3 years ago

<img src="https://tex.z-dn.net/?f=2%2Bx%3D11" id="TexFormula1" title="2+x=11" alt="2+x=11" align="absmiddle" class="latex-formul

nekit [7.7K]

Answer:

$x = 9$

Step-by-step explanation:

$2 + x = 11$

$x = 11 - 2$

$x = 9$

<h3>Hope it is helpful....</h3>

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2 years ago