Answer:
784 cm
Step-by-step explanation:
7*8=56
24*8=192
24*7=168 168*2=336
=25 25*8 = 200
56+192+336+200=784
Answer:
x = 21
Step-by-step explanation:
4 - 7x +10 = 15 - 6x - 8
-7x + 14 = -6x -7
14 + 7 = -6x + 7x
21 = x or x=21
Answer:
x = 1.5 when y = 3
Step-by-step explanation:
You can put this in a ratio:
x : y
5 : 10
1.5 : 3
x is 1.5 when y is 3.
Slope-intercept form is y=ax+b where a is the slope and b is the y-intercept.
Start by getting y alone on one side.
5x-7y=-45
5x+45=7y
Then divide both sides by 7 to get y alone.
y= 5/7x + 45/7