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Leviafan [203]
3 years ago
5

THIS IS 8TH GRADE MATH (Pre-Algebra).

Mathematics
1 answer:
gtnhenbr [62]3 years ago
3 0
First you need to set up a formula. Underline all of your givens:

<u>Spent 1/2 on clothes
$6 more for washing windows
Ended with $10.
</u>
now you need to set up an equation.
<u>
</u>You know she ended up with $10. So that will be what it equals. Then you know that she earned $6 in addition to her allowance. So this would be (x= allowance) (x+6)/2 = 10.
<u>
</u>Now you need to solve for x. 
Multiply both sides by 2.
<u>
</u>x+6=20<u>
</u>Now subtract both sides by 6 to get x alone:
<u>
</u>x=$14<u>
</u><u>
</u>
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7. A city lot is twice as long as it is wide, If its perimeter is 480 units, what are the dimensions of the lot?
g100num [7]

Answer:

Step-by-step explanation:

P = 480

P = 2 length + 2 width

but we also know that

2width = length

so plug that into the length

P = 2(2width) + 2 width

480 = 4 width + 2 width

480 = 6 width

80 = width

160= length

see?

3 0
3 years ago
Find all the factors of 125
Andreyy89

Answer:

1,5,25,125,

all can be added or multiplied to equal 125

3 0
3 years ago
In Mark's collection of antique bottles, 1 over 2 of of the bottles are dark green. Write three equivalent fractions for 1 over
dalvyx [7]

Answer:

2/4, 3/6, and 4/8

Step-by-step explanation:

Equivalent fractions are made by multiplying the numerator and denominator by the same factor.

For 1/2, you can multiply the top and bottom by 2, 3, or 4 to get 2/4, 3/6, and 4/8 respectively.

3 0
3 years ago
I need help on this
Naily [24]

Answer:x=90° y=58° z=32°

Step-by-step explanation:

x=90

y=180-(90+32) sum of angles in a triangle is 180

y=58

y+90+z=180 they are supplementary

58+90+z=180

148+z=180

z=180-148

z=32

5 0
3 years ago
A hotel room cost $79 per night. Meg's family is getting 2 rooms for 5 nights for their trip.
SCORPION-xisa [38]
$790 because it would be 79 times 10
6 0
2 years ago
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