Answer:
20
Step-by-step explanation:
divided 12 by three since it mirrors the shape on a smaller scale. you get 4. multiply that by five and there's your answer
Answer:
x=4
Step-by-step explanation:
4(3x+5)=6(x+8)-x
12x+20=6x-x+48
12x+20=5x+48
12x-5x=48-20
7x=28
x=4
Answer:
a=3
Step-by-step explanation:
The formula for direct proportion is
f = ka
Let f= 42 and a = 7
42 = k*7
Divide each side by 7
42/7 = k7/7
6 =k
f = 6a
Let f = 18
18 = 6a
Divide each side by 6
18/6 = 6a/6
3 =a
Answer:
Hence the expression 
Step-by-step explanation:
Explanation
- The given expression is (10a-b)(3 a-4).
- We have to multiply the given expression.
- Multiply the (10a-b) by -4, multiply the (10 a-b) by 3a then add like terms.

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Answer:
21.98 inches
Step-by-step explanation:
54.4 - 32.42 = 21.98
<em>hope this helps, good luck :)</em>