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Zarrin [17]
3 years ago
12

Ms. Wolf’s first job was at a frozen yogurt shop where she made $9 per hour. After a raise, Ms. Wolf earned $9.75 per hour. What

was the percent increase rounded to the nearest percent?
Mathematics
1 answer:
Ber [7]3 years ago
7 0

Answer:

8 percent

Step-by-step explanation:

9.75/9 is 1.08, which means 8 percent

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Louise bought a frame and canvas online for $125. Then she bought all the supplies shown in the table and paid a 7% sales tax on
dem82 [27]

9514 1404 393

Answer:

  $342.37

Step-by-step explanation:

When a quantity is marked up by x%, its marked-up price is (1 +x/100) times its original price. Tax is effectively a markup.

Louise's costs are ...

  $125 + (12.50 +19.50)(1.07) = $159.24

Louise priced her painting at ...

  $159.24·(1 +1.15) = $342.37

7 0
2 years ago
Please see attachment for the question and answer choices.
Triss [41]

Answer:

  about 81 years

Step-by-step explanation:

A graphing calculator can give you the answer easily.

__

You can solve the problem algebraically by putting in the given number and solving for t.

  30000 = 32000/(1 +12.8e^(-.065t))

  12.8e^(-.065t) = (32000/30000) -1 = 1/15

  e^(-.065t) = 1/(15·12.8) = 1/192 . . . . . divide by 12.8

  -0.065t = ln(1/192) ≈ -5.257 . . . . . .  take the natural log

  t = -5.257/-0.065 ≈ 80.88 . . . . . . . .divide by the coefficient of t

It will take about 81 years for the number of trees to reach 30,000.

3 0
2 years ago
The sides of a triangle are given as 3x, x - 1 and 3x + 1. If the perimeter [2]
sveta [45]

Answer:

The sides are 24cm, 7cm, and 25cm

Step-by-step explanation:

3x+x-1+3x+1=56 <---- First we combine like terms (the 1's cancel out)

7x/7=56/7 <--- Divide by 7 to isolate the variable

x=8 <--- Now that we've solved for x we need to plug it back into each side

3(8)=24

(8)-1=7

3(8)+1=25

24+25+7=56 <---- Make sure it all adds up to 56

Hope this helps :)

3 0
3 years ago
Read 2 more answers
Does anyone know the answer to this and how to solve it? I’m completely lost-
vovangra [49]

Answer:

314

Step-by-step explanation:

Does the line cuts through the diameter of the circle?

If so just apply π * 10^2 = 314.15 radius is just 20/2  = 10

7 0
3 years ago
What is the triangle numbers from 1 and 100​
Nata [24]

Answer:

1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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