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STatiana [176]
3 years ago
8

I need help asap 20 points

Mathematics
1 answer:
MrRa [10]3 years ago
7 0

Answer:

see below

Step-by-step explanation:

First figure out how much he spent on lunch

1/4 * 20 = 5

Then determine how much he spent on music

1/2*20 = 10

He spend 5+10 = 15

He had 20

20 -15 =5

He had 5 dollars left to save

So he saved 5 dollars

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Find the annual percentage rate of change for the population of Oregon. In 2000, there were 4.8
MrRa [10]

Answer:

The annual percentage rate of change for the population of Oregon is of 8.125%.

Step-by-step explanation:

Total percentage change:

Change multiplied by 100 and divided by the initial value.

Change: 8.7 - 4.8 = 3.9 million

Initial value: 4.8

Percentage change: 3.9*100/4.8 = 81.25%

Annual percentage rate of change

81.25% during 10 years(from 2000 to 2010).

So, per year

81.25%/10 = 8.125%

The annual percentage rate of change for the population of Oregon is of 8.125%.

5 0
3 years ago
The length, with, and height of a rectangular prism can be represented by the expressions (x+3),(x+7),and(x-1). Write an express
joja [24]

Answer: 6x² + 36x + 22

Step-by-step explanation:2 faces  (x + 3) by (x + 7), area of both these faces 2(x+3)*(x + 7)

2 faces  (x + 3) by (x - 1), area of both these faces 2(x+3)*(x - 1)

2 faces  (x -1 ) by (x + 7), area of both these faces 2(x-1)*(x + 7)

Whole surface area is

2(x+3)*(x + 7) + 2(x+3)*(x - 1) + 2(x-1)*(x + 7) =

=2(x² + 3x +7x +21) + 2(x² +3x -x - 3) + 2(x² - x +7x -7)=

=2x² + 20x +42 + 2x² + 4x - 6 + 2x² + 12x -14 =

= 6x² + 36x + 22

5 0
2 years ago
Read 2 more answers
Which statement best describes tuition
Kitty [74]
 Tuition is the price of attending classes at a school. Your welcome. 
3 0
3 years ago
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Figure ABCD is a parallelogram with point C (3, −2). Figure ABCD is rotated 90° clockwise to form figure A′B′C′D′. What coordina
olasank [31]
After rotation the output for point C´ would be  ( - 2 . -3 ).  There is also a graph showing rotation in the attachment.
Download docx
6 0
4 years ago
PLSSS HELP THIS IS HARD ANYONE
enyata [817]

Answer:

Step-by-step explanation:

7 0
2 years ago
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