6)
3x + 27 - x + 6
answer: 2x + 33
bonus)
7 [16 - 6 | 5 + ( 8 - 18 ) + 16 + 8 |]
7 [16 - 6 | 5 - 10 + 16 + 8 |]
7 [16 - 6 • 19]
7 [16 - 114]
7 [-98]
answer: -686
(this answer can possibly be wrong )
2)
8 - 11
answer: -3
3)
-7/3(6) + 9
14 + 9
answer: 23
4)
2(5) - 9
10 - 9
answer: 1
Answer:
a contemptible, socially inept person.
Step-by-step explanation:
Answer:
2m-4
Step-by-step explanation:
because she has double his amount (2*m) but $4 less therefore 2m-4
Answer:
14 quarters and 28 nickels
Step-by-step explanation:
System of Equations where x = number of quarters and y = number of nickels
(1) equation with value of each coin
0.25(x)+0.05(y) = 4.90
(2) total number of coins
x + y = 42
Solve system of equations using either substitution or elimination
(elimination multiplying equation 2 by -0.5)
.25(x) + 0.05(y) = 4.90
-0.05(x) - 0.05(y) = 42 * (-0.05)
(3) Resulting equation
.20(x) = 2.8
x = 14
plug x into equation 2
14 + y = 42
y = 28
There are 14 quarters and 28 nickels in Mary's collection.
