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kykrilka [37]
3 years ago
10

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? <u>Half of 320 million is 160 million</u>. <u>Half of 160 million is 80 million, 160 million plus 80 million is </u><u>240 million.</u>

alexgriva [62]3 years ago
6 0

Answer:

240 million

Step-by-step explanation:

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F(t)=30(0.97)∧t <br><br> = rate of change
Vedmedyk [2.9K]
<span>Hey there, Lets solve this together.  

</span>F(t)=30(0.97)^t 

A = (p+r)^t  

<span>The variable (R) will be representing the rate as a decimal. 

When you solve for (R) multiply by 100 to get the percentage. A percentage is </span><span>a rate, number, or amount in each hundred. 

</span><span>"0.97" will be replaced by "(97/100)"
</span>
<span>Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the given equation  
</span>
Ft-((30))97/100) * t) = 0 

Rewrite the whole as a fraction using  10 <span> as the denominator : 
</span>
ft = ft/1 = ft * 10/10 

The equation now takes the shape :
   t  •  (10f-291)<span>  = 0
</span>
<span><span> f = 291/10 = 29.100

</span> t = 0</span>


<span>Positive = Growth 

Negative = Decay  
</span><span>
</span>1 + r = .97 
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</span>r = -0.03 <span> 
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<span>

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5 0
3 years ago
Which value is the solution for this equation?
Svetradugi [14.3K]

Answer: a=-5

Step-by-step explanation:

2(a + 3) = −4

2a+6=-4

2a=-10

a=-5

3 0
3 years ago
Read 2 more answers
What is the simplified form of the following expression
Rasek [7]
The second option is the answer
7 0
3 years ago
PLEASEEEEEEE HEEELLLLPPPPP MEEE
Aleks04 [339]

Answer:

The second option

Step-by-step explanation:

For this problem, there are multiple ways to solve. The easiest here is the cross method. For ax²+bx+c, you find 2 numbers that multiply to ac and add to b, which you replace b with.

ac in this case is -8×3, which is -24. b in this case is 23.

You can go through the factor pairs of -24 to find the ones that add to b. These pairs are (1 and -24, -1 and 24, 2 and -12, -2 and 12, 3 and -8, -3 and 8, 4 and -6, -4 and 6). The only pair that adds to 23 is 24 and -1.

You sub this into the original equation, making 3x²+24x-x-8.

From there, you factorise, making 3x(x+8)-x(x+8).

This can be factorised further to (3x-x)(x+8) by collecting like terms.

**This question involves factorising quadratics, which you may wish to revise. I'm always happy to help!

3 0
3 years ago
Thanks so much for any help!!
alekssr [168]

Answer:

7/5

Step-by-step explanation: To find the square root of a fraction, find the square root of the top and bottom.

Please thank, hope this helps.

6 0
2 years ago
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