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Lubov Fominskaja [6]

3 years ago

6

8=2x+16 will give branly

2 answers:

Rama09 [41]3 years ago

6 0

Answer:

<h2>x = - 4</h2>

Step-by-step explanation:

8=2x+16

8 - 16 = 2x

x = -8 /2

x = -4

Musya8 [376]3 years ago

3 0

It’s pretty simple,, first you make sure you have the like terms together. So it would become 2x=16-8. 8 becomes -8 as we’re moving it to the other side
So the working will be
2x=16-8
2x=8
X=4
I hope this helped!! Let me know if there’s anything else i can help with:)

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School pennants cost $18 each. Ms.Lee says she will pay $146 for 7 pennants. Is her answer reasonable?

crimeas [40]

Well, all we have to do to figure out if Ms. Lee’s offer is reasonable is multiply the unit price ($18) by 7

18 x 7 = 126

Since she offered $146, she could actually purchase 8 pennants for $144

Therefore, her answer wouldn’t be reasonable

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2 years ago

in a survey of 3271 adults aged 57 through 85 years, it was found that 88.7% of them used at least one prescribed medication

mixer [17]

How many of the 3271 subjects used at least one prescription medication? Round to the nearest integer asneeded.)

Answer:

2902

Step-by-step explanation:

Let the total number of adults within the mentioned age bracket be n=3271

The proportion of adults who used at least one prescription medication be p=88.7%=0.887

The point estimate of population is given by

$p=\frac {x}{n}$ where x is number of individuals in the sample with the specified characteristics and n is the sample size.

Let x be the adults who used at least one prescription medication

$0.887=\frac {x}{3271}$

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