Answer:
10a
Step-by-step explanation:
10a is the same as 10 * a
product is multiplication
ANSWER: a=12 b=15
Explanation: (look at work below)
4a + 1b = 63 (eq1)
5a + 3b = 105 (eq2)
-12a + -3b = -189 (subt. eq1 from eq2)
————————-
-7a = -84
a = 12
4(12) + 1b = 63 (plug in the a value)
48 + 1b = 63
b = 15
Answer:
b. 6
Step-by-step explanation:
I'm not 100% sure if this is the answer but here was my thinking process:
1/4 of 24 is 6, and 6 + 3 is 9, so the brothers age is probably 9, and then 24-9 is 15, and the difference between 15 and 9 is 6. Once again I don't know if this is right or not, but either way I hope this helps!
The first option is correct (-x)
Answer: 11
Step-by-step explanation:
c(4)=-7+6(4-1)
c(4)= -7 + 6(3)
c(4)= -7 +18
c(4)= 11
