First distribute 6 into the parenthesis so that would be (6n - 18) - 2n = 10. Then erase the parenthesis to make the subtraction easier. So that would be 6n-18-2n=10. Then solve the subtraction by separating the unknown numbers with n and the normal numbers. So 6n-2n=4n 4n-18=10. To find n, add 18 and 10 to make both sides of the equation equal. So that would make 4n=28. Therefore n would be 7 because 28 divided by 4 makes 7.
Answer:
90- 54w
Step-by-step explanation:
First, distribute multiply 18×5 which is 90.
Then, 18×3w which is 54 and bring the w with it.
Hope this helps :)
Answer:
b is the correct expression
First let establish the eqautionlet y be the total costx is the number of orders
y = 3x + 115
since the minimum order is 25x >= 25
then The school can spend a maximum of $800
800 <= 3x + 115
800 - 115 <= 3x685 <= 3x685/3 <= x228.33 <= x
Answer:
(-0.4)²
= -0.4×-0.4
product of two negative numbers is positive
so, 0.4×0.4
=4/10×4/10
=16/100
=0.16
