Answer:
Step-by-step explanation:
hello :
-3/7m<21
multiply by (-1) : 3/7m > 21
now dividid by 3/7 : m > 21×7/3
m > 49
Answer:
Below in bold.
Step-by-step explanation:
Use the elimination method:
a. x + y = 23
x - y = 7
b. Adding the 2 equations eliminates y, so we have
2x = 30
x = 15.
Substitute x = 15 in equation a:
15 + y = 23
y = 23 - 15
y = 8.
Answer x = 15, y = 6.
Answer:
7161 km³
Step-by-step explanation:
28²+b²=32.5²
784+b²=1056.25
b²=1056.25-784
b²=272.25
b=√272.25
b=16.5
1/2x28x16.5x31=7161
Answer:
I got 9
Step-by-step explanation:
I did subtraction and then added and then divided by 16x on both sides
You have to get y by itself. Divide by 7 on both sides to get 1.43x-11=y. Hope this helps! ;)
