Answer:
The equivalent expression is - 25n - 2 and it matches with option D.
Step-by-step explanation:
We have to simplify and create the equivalent expression for
{- 2(- 5n + 6) + 5(2 - 7n)}
Now, {- 2(- 5n + 6) + 5(2 - 7n)}
= 10n - 12 + 10 - 35n
= - 25n - 2
Therefore, the equivalent expression is - 25n - 2 and it matches with option D. (Answer)
Step-by-step explanation:
a. 12 + 4 = 16
1st left equation is matched to 4th right value
b. 3(4) + 7 = 19
2nd left equation is correctly matched to 2nd right value
c. 4(7) - 10 = 18
3rd left equation is matched to 1st right value
d. 1 / 2 × xy
1 / 2 × (4 × 7)
= 28 ÷ 2
= 14
4th left equation is matched to 3rd right value
Answer:
yes that is correct
Step-by-step explanation:
make sure you use mulipy subrract and - only
Answer:
Beth is five years old.
Step-by-step:
Beth + Julio + Gerald + Debra = 38
B + (Beth - 2) + (2 x Beth) + (2 x Gerald) = 38
Since we know that Gerald is twice as old as Beth and Debra is twice as old as Gerald. That makes Debra four times older than Beth.
Beth + (Beth - 2) + (2 x Beth) + (4 x Beth) = 38
B + (B -2) + (2B) + (4B) = 38
Simplfy the like terms.
8B - 2 = 38
Add 2 on both sides.
8B = 38 + 2
8B = 40
Divide both sides by 8 to isolate the variable.
8/8 B = 40/8
B = 5
