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2 years ago

Gary is 25 years old. That is 7 more than

Mathematics

1 answer:

SpyIntel [72]2 years ago

5 0

Answer:

2x + 7 = 25

x = 7

Step-by-step explanation:

Gary: 25

Sean: x

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

Let's break down the sentence into mathematical terms

Gary is 25 years old. That is 7 more than twice Sean's age.

In math, is means equal to. It is represented with an equal sign (=)

Gary = 25. 25 = 7 more than twice Sean's age.

7 more is represented by 7 +

Gary = 25. 25 = 7 + than twice Sean's age.

Twice means double which is 2 ·

Gary = 25. 25 = 7 + 2 · Sean's Age

Sean's Age will be represented by x

Gary = 25. 25 = 7 + 2x

We don't need it to say "Gary = 25" in our equation.

25 = 7 + 2x

Let's rewrite it with the associative property.

2x + 7 = 25

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

Now, solve

2x + 7 = 25

-7 -7

2x = 18

÷2 ÷2

x = 7

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

Sean is 7 years old.

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Step-by-step explanation:

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2 years ago

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3 years ago

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strojnjashka [21]

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$V = kAh$

where
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k = constant of proportionality
A = area of the base
h = height of the cone

The given info is for A = 27, and h = 6, then V = 54 (all using appropriate units for area, length, and volume, respectively.)

Now we can find k, the constant of proportionality.

V = kAh

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