M + s = 10 or s = 10 - m
<span>3m + 2s = 23 </span>
<span>substitute first equation into second equation: </span>
<span>3m + 2(10 - m) = 23 </span>
<span>3m + 20 - 2m = 23 </span>
<span>m = 3 </span>
<span>using first equation: </span>
<span>s = 10 - 3 = 7 </span>
<span>check using second equation: </span>
<span>3(3) + 2(7) = 23 </span>
<span>9 + 14 = 23 checks </span>
<span>He hit 7 stationary and 3 moving targets.</span>
11 - (-3 5/8)
-negative sign and -negative sign= +positive sign
11+3 5/8
answer:
D. 11 + 3 5/8
Answer:
the answer is A.
Step-by-step explanation:
(
×
)÷
2×9= 18
6+6= 12
÷
= 
Answer:
-2.5 degrees
Step-by-step explanation:
The temperature decreased 18.5 degrees F in 7.4 hours.
-
-18.5/7.4 = -2.5 degrees F
The average change in temperature over the course of 7.4 hours is -2.5 degrees F.
Your welcome!
Kayden Kohl
8th Grade
