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Mathematics

1 answer:

expeople1 [14]3 years ago

4 0

I found 3 sides and muliplied the answer by 2 because there are 6 sides.
60+108+45=213
213 x 2 = 426 m squared.

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Y + 2 =1/2(x – 3). Please help ?!?

Sidana [21]

first, spread the parenthesis. y+2=1/2x-1.5

second, add 1.5 to both sides. y+3.5=1/2x

third, multiply by 2. 2y+7=x

if you are solving for y, do not do the third step, instead, subtract by 3.5. y=x-3.5

hope this helps!

ANSWER: x=2y+7 or y=x-3.5

6 0

3 years ago

A company has determined that the number of items it sells varies inversely as the price of the item. If 20,000 items can be sol

mestny [16]

Let N be the number of items sold and p the price.
Since the variation is inverse, then the relation between N and p is:
$N=k\dfrac{1}{p}$
For N=20000 and p = $9.5, we get the formula:
$20000=k\dfrac{1}{9.5}\\p=20000\times9.5=190000$
If p = 8.75, then the number of items sold can be computed using the formula:
$N= 190000\dfrac{1}{8.75}=21714 \text{ total items}$

6 0

2 years ago

62.5% as two equivalent forms

mrs_skeptik [129]

62.5/100 and 0.625 are both equivalent.

5 0

3 years ago

Read 2 more answers

Solve for x. 2x² +21x-61 = (x+7)² Please

Ymorist [56]

Answer:

$x = \frac{-7 +\sqrt{489} }{2}$