Answer:
20 X 40 = 800 (split into 2 fourths) = 40
Step-by-step explanation
20 x 40 = 800;
For 2 necklaces she can split 800 into fourths.
800 - 40 = 80. (1 fourth)
80 - 40 = 40 (2 fourths)
40 - 40 = 0 (3 fourths)
She could split 800 into 2 fourths to get a number more than 0 and less then 42.
The best estimate of rounding 42 is 40. Because 40 is closer to 42.
Answer:
(0,-4)
Step-by-step explanation:
Answer:
-2x-8
Step-by-step explanation:
1) Distribute:
-6/3x+-15/3-3
2) Simplify:
-2x-5-3
3) combine like terms:
-2x-8
hope this helps
Answer:
Its B -15i+6j
Step-by-step explanation:
First, Delete these brackets on the right side:

Left side and right side are equal, so each parameters have to be equal. Next to "x^2" you've got parameters "6" and "3n". So:
3n=6 /:3
n=3Free terms are "6" and "3m", so:
3m=6 /:3
m=2Next to "x" you've got "b" and "9+nm" . We know, that m=2 and n=3 so:
b= 9+nm
b=9+2*3=9+6
So
b=15