Answer:A. 10x. B. -2yz
Step-by-step explanation:
A. 4x+7x=11x
11x+(-x) = 11x-1x=10x
B. -5yz+yz=-4yz
-4yz+2yz=-2yz
Answer:
b=320; slope=-30
Step-by-step explanation:
if you look along the y-axis find the spot that the line intercepts and then that's b
now for the slope
find two points on the line, i chose(8 , 120) and (4 , 240)
use the slope formula: y2-y1 over x2-x1
240-120=120 and 4-8= -4
so the slope is 120/-4 and that can be simplified to 30/-1 or -30
Answer:
7×10³+3×10²+4×10¹+2×10 or 7.342×10³
Answer:
another number =27
Step-by-step explanation:
Let X stand for the larger number. The smaller number is therefore X - 13. We can now write the sum of the two numbers as:
X + (X - 13) = 4
X + X - 13 = 41
Gather the X’s and rewrite as,
2X - 13 = 41
Add 13 to both sides to get
2X = 54
Divide both sides by 2 to solve for X,
X = 27
Since the absolute value makes numbers absolute or real numbers you could replace the ? with 8/9 or -8/9 since the negative will go away because of the absolute value sign.