Step-by-step explanation:
A
3(6+15)
=3(21)
=63
B
5[15-(6+1)]
=5(8)
=40
B
⅓(15)
=5
C
⅓(6+15)
=⅓(21)
=7
E
15/6
=2/1/2 or 2.5
W
2(6)(15-3)
=2(7)
=36
L
4(⅓+⅓+⅓)
=4(1)
=4
L
6/15 - 15/6
=36/90 - 225/90
= -189/90
= -21/10
Im pretty sure 82 is the answer
Answer:
area or rectangle is double area of triangle
Step-by-step explanation:
Answer:
To decide whether to add or subtract, determine if the values of the coefficients are the same or opposites:
. If the values are the same, subtract the equations.
• If the values are opposites or additive inverses, add the equations.
Step-by-step explanation:
Given


Required
How to solve
Options (1) and (2) are incorrect because none of the options eliminate x or y.
For option (3),
- Check for the coefficients of x and y
- If they are the same (sign and value), then subtract; otherwise add
For instance:


Rewrite the second equation


The coefficient of y are the same, so we subtract;




<em>See that y has been eliminated</em>
Answer:
20,000
Step-by-step explanation:
10,000 times 2 since it is doubled