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3 years ago

There are about 320 million people living in the United States. Of these, how many would you predict wear corrective lenses

Mathematics

2 answers:

tiny-mole [99]3 years ago

8 0

Answer:

240 million

Step-by-step explanation:

Google said that three out of four people wear corrective lenses which is also 75%. So whats 75% out of 320 million? Half of 320 million is 160 million. Half of 160 million is 80 million, 160 million plus 80 million is 240 million.

alexgriva [62]3 years ago

6 0

Answer:

240 million

Step-by-step explanation:

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nexus9112 [7]

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Step-by-step explanation:

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3 years ago

what is the answer to the volleyball team at blue point high school has saved $680 and the team plans to spend no more then that

zloy xaker [14]

Answer:

6 x + 23 y < $ 680 represents the combinations of x balls and y nets that can be purchased.

Step-by-step explanation:

The number of balls than can be purchased = x

The number of nets than can be purchased = y

Total savings = $ 680

Now, the cost of 1 ball =$6

So, the cost of x balls = x ( cost of 1 ball) = x ( $6) = 6 x

Also, the cost of 1 net =$23

So, the cost of y nets = y ( cost of 1 net = y ( $23) = 23 y

So, the total amount spent on x balls and y nets

= Amount spent on x balls + Amount on y nets

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Also, the saved amount is $680

⇒ 6 x + 23 y < $ 680

Hence, 6 x + 23 y < $ 680 represents the combinations of x balls and y nets that can be purchased.

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3 years ago

Can you step by step solve 20x+12=4x-16

Murljashka [212]

Answer:

x = - $\frac{7}{4}$

Step-by-step explanation:

Given

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16x + 12 = - 16 ( subtract 12 from both sides )

16x = - 28 ( divide both sides by 16 )

x = $\frac{-28}{16}$ = - $\frac{7}{4}$ [ = - 1.75 ]

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3 years ago

Formula for 4,9,14 19

alexira [117]

Answer:

$a_{n }$ = 5n - 1

Step-by-step explanation:

There is a common difference between consecutive terms , that is

9 - 4 = 14 - 9 = 19 - 14 = 5

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$a_{n}$ = a₁ + (n - 1)d

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3 years ago

Read 2 more answers

Find the answer for x.

andreev551 [17]

Answer:

x=25

Step-by-step explanation:

since this is a triangle you would add up all the measure of this and set it equal to 180. 90 is the side with the box. so it would be 2x+15+x+90=180 then solve for x and you would get your answer.

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3 years ago