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soldier1979 [14.2K]
3 years ago
8

Explain how you could estimate 22% of 78 to check if your answer is reasonable.

Mathematics
1 answer:
choli [55]3 years ago
5 0

you can find 10 percent by dividing 78 by 10 which is 7.8. Then you double that to find 20 percent. That will make you find 20 percent! close to 22

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In a recent survey 7 out of 10 people prefer coffee in the morning the rest said they prefer tea if 27 people said they prefer t
prohojiy [21]
<span>To find the answer to this equation, use the result of "27 people" who prefer tea. This is equivalent to 3 out of 10 people in the whole survey sample. Using equivalent fractions to find the total sample, we see that "3/10 = 27/x." Multiplying 3 by 9 gives 27, so multiplying 10 by 9 gives a total sample size of 90 people.</span>
8 0
3 years ago
Find b(4) in the sequence given by<br> b(1) = -5 <br>b(n) = b(n-1) + 9<br><br><br>b(4) =​
Harrizon [31]

Answer: 22

Step-by-step explanation:

I got it right on khan academy

7 0
3 years ago
Hey can someone help me and check my answers? thanks &lt;3
Tasya [4]
Remember
x^-m=1/(x^m)
u^-3=1/(u^3)
1/(u^3)=1/125
therefor
u^3=125
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x=-3
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y=-3-13
y=-16
correct



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(x,y)
chose al second numbers
0,3 are all acceptable
B and D




y=mx+b
m=-3
y=-3x+b
sub point
(x,y)
(1,-2)
-2=-3(1)+b
-2=-3+b
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3 0
3 years ago
The product of 17 and a number
Over [174]
 <span>17 x X = A, i think.</span>
8 0
3 years ago
A fruit company recently released a new applesauce. By the end of its first​ year, profits on this product amounted to $ 35 comm
Vikki [24]

Answer:

P(x) = 35,900 + 2,800(x-1)

Step-by-step explanation:

P(x)

P(1) = $35,900

P(4) = $44,300

Difference in profits

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= P(3)

= $44,300 - $35,900

= $8,400

Rate of change per year = $8,400 / 3

= $2,800 per year

The linear equation

P(x) = 35,900 + 2,800(x-1)

Where

x = number of years

3 0
3 years ago
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