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Mumz [18]
3 years ago
14

Scratchpad

Mathematics
1 answer:
Maksim231197 [3]3 years ago
6 0
Theirs a 71% chance that she choose a black marker
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Consider f(x) = -(x+7)^2 +4. check all that apply
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-the equation is a quadratic

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The student council is selling tickets to a school dance. One teacher decides to pay $10 for his class, and the students in the
Lostsunrise [7]

Hi,

x + y = 350                    (equation 1)

3x + 2y = 950                 (equation 2)


Use Substitution Method

Isolate variable x in equation 1


x = 350 – y                     (equation 3)


Substitute equation 3 into equation 2


3(350 – y) + 2y = 950

1050 – 3y + 2y = 950

3y – 2y = 1050 – 950

y = 100


Substitute y = 100 into equation 1


x + 100 = 350

x = 250


Answer: 250 $3 tickets and 100 $2 tickets were sold.


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19. Rick shared his bag of grapes withfriends. He gave /210of the bag to Melissaand /410 of the bag to Ryan. What fractionof the
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Rick started with 10/10 of the grapes because he had all of them at the start.

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Step-by-step explanation:

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