You keep the same sign. So:-
4 + 4 = 8 and
--4 + -4 = -8
Answer:
x = 7
Step-by-step explanation:
Similar figures have sides that are proportional. Setting up a proportion for the sides of the figures will help solve for 'x':
Cross-multiply: 3(x + 1) = 6(x - 3)
Distribute: 3x + 3 = 6x - 18
Combine like terms: 21 = 3x
Solve for 'x': x = 7
Answer:
621/87=7.13793103448
Step-by-step explanation:
I divided it and got this answer
Answer:
696 students.
Step-by-step explanation:
From the sample of students 58/125 of them like milk.
So we can predict that 1500 * 58/125 of the 1500 students like milk.
This comes to (1500/125) * 58
= 12 * 58
= 696.
Answer:
9x+2
Step-by-step explanation:
It's a simple problem, to find the perimeter, add a+b+c. In this case, it's with binomials, but it follows the same idea.
(2x+2)+(3x+1)+(4x-1)
2x+2+3x+1+4x-1
Combine like terms.
2x+3x+4x=9x
2+1-1=2
Left with 9x+2 as your perimeter binomial.
