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Anarel [89]
3 years ago
10

Grade 7 . Pre-Assessment

Mathematics
2 answers:
Veronika [31]3 years ago
8 0
Answer: 5



Step by step:
Take 72-27=45
then 45/9=5
Alexeev081 [22]3 years ago
4 0
David purchased five packs
Use subtraction
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Answer:

x =-1

Step-by-step explanation:

5x- 7 = 8x - 4\\\\\mathrm{Add\:}7\mathrm{\:to\:both\:sides}\\5x-7+7=8x-4+7\\\\Simplify\\5x=8x+3\\\\\mathrm{Subtract\:}8x\mathrm{\:from\:both\:sides}\\5x-8x=8x+3-8x\\\\Simplify\\-3x =3\\\\\mathrm{Divide\:both\:sides\:by\:}-3\\\frac{-3x}{-3}=\frac{3}{-3}\\\\Simplify\\x=-1

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Answer:

(f*g)(x) = 3x^3 + 6x^2

Step-by-step explanation:

Since we are looking for the result of multiplying the equations (f*g), we must multiply the right sides together

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from there, just put them back in the equation

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Step-by-step explanation:

the answer to life and the universe

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