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statuscvo [17]
3 years ago
9

Can anyone help me on this? I'm so confused!

Mathematics
1 answer:
DanielleElmas [232]3 years ago
3 0

Answer:

X=9

Y=2

Z=1

99+22=121

xx+yy=zyz

Step-by-step explanation:

Hope this helps!! Have an amazing day!!

BTW...if yall have any questions for school (it can be any grade level or subject) just comment here and I will get to it as soon as I can!! ❤

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What is the sum of x + 9?
vovikov84 [41]
So 30/48=15/(x+9)
this could be easily solved by recognizing the proportion (the other way is usiing full  algebra and doing multiply both sides by 48(x+9) and then divide both sides by 30 then subtract 9)
30 is 2 times of 15
therefor 48 is 2 times of (x+9)
48=2 times (x+9)
divide both sides by 2
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x=15

5 0
3 years ago
Help find the perimeter and area please
sertanlavr [38]

Answer:

P= 20.2 and A= 15.675

Step-by-step explanation:

The formula for the area of a triangle is 1/2 base*height. Therefore, the equation for the area of the triangle is 1/2*5.7*5.5. 1/2*5.7=2.85. 2.85*5.5=15.675(area). To find perimeter you're simply adding the numbers. When you add up the numbers of the triangle, you get 20.2.

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8 0
3 years ago
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If sally got 28 questions correct and received 70% on the exam, how many questions were on the exam
Furkat [3]

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Step-by-step explanation:

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Let the total questions in the exam be represented as y.

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0.7y = 28

Divide both side by 0.7

0.7y/0.7 = 28/0.7

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