How do you do 3b+7.1=2.5b+11.5

Answers

Answer 1

Answer: 3b+7.1=2.5b+11.5

First, you'd take 2.5b and subtract it from 3b

3b-2.5b+7.1=11.5

Simplify:

.5b+7.1=11.5

then, you would take 7.1, and since it is positive, subtract it from 11.5

.5b=11.5-7.1

Simplify:

.5b=4.4

Lastly, you'd take 4.4 and divide it by .5, leaving the unknown factor alone.

b=4.4/.5

Final answer:

b=8.8

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Which value shows 5/8 written as a percent?A.
6.25%

B.
58%

C.
62.5%

D.
0.625%

Answers

if you divide 5 by 8, you will get .625, so the answer is 62.5%

It would be D i think if im not mistaken

Round each number to the nearest whole number.225.45 and 90.32

Answers

225.45 is 230

90.32 is 90

225.45 rounded to the nearest tenth is 230and 90.32 to the nearest tenth is 90

What is the ratio of x to y?
2 x
---- = --------
3 3x+y

Answers

so 2/3=x/(3x+y)
multiply both sides by 3x+y
(2(3x+y))/3=x
(6x+2y)/3=x
multiply by 3
6x+2y=3x
subtract 6x form both sdies
2y=-3x
-3x=2y
the ratio of x to y is
-3:2

13 POINTS ALL TOGETHER PLEASE HELP I GIVE THANKS A CHOOSE BEST ANSWER IF YOU'RE RIGHTFIRST THREE PICS ARE FOR #1

Answers

Question 1)
The answer is B because all the points correlate.

Question 2)
Your numbers are:
2,2,4,5,6,7,8, and 9.
$(2+2+4+5+6+7+8+9)/(8) =5.375$
Since it says "1 decimal place" the answer is 5.4

Question 3)
Your numbers are:
1,2,3,3,4,5,7, and 8.
Start crossing them out.
1-2-3-3-4-5-7-8
2-3-3-4-5-7
3-3-4-5
3-4
Since your left with 2 numbers, you go in between.
3.5

The original price is $60, the retail price is $84. find the percent of decrease?