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Answer:
1. -2x+24
2. 3x+21
3. 5x-17
4. 3x²+12x
5. 18
Step-by-step explanation:
2. 3(x)+3(7)=3x+21
3. 5(x)+5(-4)+3= 5x-20+3=5x-17
4. 3x(x)+3x(4)=3x²+12x
5. 3(10)-12=30-12=18
To find a:b given 5a = 8b
From 5a = 8b
We divide both sides by 5
So we have;
a = 8b/5
Then we divide both sides by b
So we have
a/b = 8/5
Ratio of a :b = 8 : 5.
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