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KIM [24]
3 years ago
8

three classmates spent money at the school supplies store mark spent 0.5 dollar, andre spent 0.45 dollar, and Raquel spent 0.52

dollar write a number sentence that compares the money to andre spent to the money that mark spent
Mathematics
1 answer:
atroni [7]3 years ago
6 0
Andre: 0.45 is equal to 9/20
Mark:   0.5 is equal to 5/10 which is equal to 10/20
So 9/20 + 1/20 is 10/20
1/20 is equal to 0.05 
ANSWER: Mark spent 0.05 more of a dollar than Andre.
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Answer:

45° and 135°

Step-by-step explanation:

let one angle be "x" and the other be "y"

Angles which are supplementary total to 180°. This can be represented with the equation:

x + y = 180

If angle "x" is a third of angle "y", the situation is represented with this equation:

(1/3)x = y

Since fractions are difficult to work with, multiply the whole equation by 3.

(1/3)x = y   <= X 3

x = 3y

Use the equations x+y=180 and x=3y.

You can substitute x=3y into x+y=180.

x + y = 180

(3y) + y = 180    <=combine like terms

4y = 180   <=isolate y by dividing both sides by 4

y = 45

Substitute y=45 itno the equation x+y=180 to find x.

x + y = 180

x + 45 = 180   <=isolate x by subtracting 45 from both sides

x = 135

Therefore the angles are 45° and 135°.

5 0
3 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
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