Select all that apply.Debra usually works 16 hours a week, but this week she worked 22 hours. What is the change in her hours?


an increase of 6 hours
an increase of 37.5%
an increase of 27.3%
a decrease of 6 hours

Answers

Answer 1
Answer: If you would like to know the change in Debra's hours, you can calculate this using the following steps:

x% of 16 hours is 22 hours
x% * 16 = 22
x/100 * 16 = 22
x = 22 * 100 / 16
x = 137.5%

137.5% - 100% = 37.5%

22 hours - 16 hours = 6 hours

The correct result would be: an increase of 6 hours, and an increase of 37.5%.
Answer 2
Answer:

Answer:

a decrease of 6 hours

an increase of 37.5%

Step-by-step explanation:

Hope it helps :b


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The orginal price of a toy was $15 if the price is reduced by 20% what is the new price of the toy

Answers

It would be 20% off which is $3 so $12

Answer:

$12

Step-by-step explanation:

You have to find what is 20% of 15 which is 3, and then subtract 3 from from 15, which is 12. Real simple!

570 mL = ? oz,show work

Answers

Conversion from milliliters to ounces can be done using the following relation: 1 mL = 0.033814 ounce.

Given 570mL, we multiply it to the amount of ounces as shown in the relation. This is done below:

570 mL * (0.033814 oz / 1 mL) = 19.274 oz

What is the slope of the graph of 4x - 8y = 11?
A. 1/2
B. 2
C. -2
D. - 1/2

Answers

Hey there.. Lets solve this problem with steps

→ Basic Standard Formula
y = mx + b

→ Step 1 ( taking x to right side or arranging the equation in standard form)
-8y = -4x + 11

→Step 2 ( keeping y at it's own place by dividing both sides by -8)
y =(-4)/(-8) x - (11)/(8)
y = (1)/(2) x - (11)/(8)

So, m = slope in standard formula
So, m = 
(1)/(2)

Correct Option is A.

Hope this helped you..  :)

When applied to a triangle, a dilation with a positive scale factor does not preserve __________. A. angle measure B. orientation C. shape D. length

Answers

d. length because it's a dilation 

Answer:

The correct answer is d) length

Find the common ratio for the following sequence. 27, 9, 3, 1, .

Answers

27/9 = 3

9/3= 3

3/1 = 3

Answer: 3

In the neighborhood park there is a circular grassy picnic area, but half of the grass has died. The city wants to replant the grass, but needs to know the square footage of the damaged area. If the circular picnic area is 150 feet across, what is the square footage of the damaged area? Let π = 3.14.A) 471 sq. feet
B) 8831.25 sq. feet
C) 17662.5 sq. feet
D) 35325 sq. feet

Answers

so, πr^2 is the equation for the area of a circle, if we calculate that, it will equal 17662.5

we then half that to get the area (square feet) of the dead grass, which is 
8831.25 square feet which means the answer is B.

150 feet across is diameter
find area
but 1/2 is dead
find area then times 1/2

area=pir^2

150=d
d/2=r=150/2=75=r

area=pi75^2
area=5625pi
times 1/2
area=2812.5pi
pi=3.14 for this problem
area=8831.25

B is answer