Answer:
a = 7 ($1)
b = 8 ($5)
Step-by-step explanation:
a + b = 15 | (-)
1a + 5b = 47
- a - b = - 15
a + 5b = 47
------------------ +
-a + a - b + 5b = - 15 + 47
4b = 32
b = 32 : 4
b = 8
a = 15 - 8 = 7
Answer:
B
Step-by-step explanation:
B because it says Valerie is 4 seconds faster than Peter so that should be S-4 but they tell you to find the average which is S-2 so that's your answer.
Hope I got this correct, I haven't done average in a long time.
Answer:
93°
Step-by-step explanation:
8x-25+7x-5=180
15x-30=180
15x=210
x=14
<B=7(14)-5
<B=93°
The answer would be (8+3n)/4
I did it but it's a long number
