2 years ago

I do not understand numbers 3 and 4

Mathematics

1 answer:

Margaret [11]2 years ago

8 0

3. jenny has 21 years old

and matthew is 42

4.juan has 48 years oldand his sister has 40

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Find the value of 5x-6 given that 2x-7=9

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Answer:

Step-by-step explanation:

Given that

2x - 7 = 9 ← solve for x

Add 7 to both sides

2x = 16 ( divide both sides by 2 )

x = 8

Substitute x = 8 into 5x - 6

5x - 6 = (5 × 8) - 6 = 40 - 6 = 34

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Step-by-step explanation:

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Sara is ordering t-shirts for her school. Sally's Shirt Shop charges $8.50 for each shirt and a one-time set up fee of $60. Shau

tensa zangetsu [6.8K]

Answer:

A ) 8.50x + 11 < 24x + 60

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Step-by-step explanation:

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