The boy is 15 because twice the age of his sister is 12, then you add the three years to it and get 15
I think the answer is 320miles,
3hs at 60mph = 180miles
2hs at 70mph = 140miles
so 180+140=320miles
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Solve for y:
5y-3(2-y)=10
Distribute the -3 to the variables inside the parenthesis.
5y - 6 + 3y = 10
8y - 6 = 10
Add 6 to both sides
8y = 16
Divide both sides by 8
y = 2
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-2(2b-3)
Multiply the bracket by -2
Whenever multiplying a -negative number with a -negative number= + positive number.
(-2)(2b)(-2)(-3)
-4b+6
Answer: -4b+6
Answer:
a
Step-by-step explanation:
math
