Answer: The boys made up 6b of the original class.
Step-by-step explanation:
The equation is:
55 + 10 x = 20 + 15 x, where x is number of the weeks.
55 - 20 = 15 x - 5 x
35 = 5 x
x = 35 : 5
x = 7
Answer:
The same amount of money in both accounts will be after 7 weeks.
X² <span>+ 11x = -28
to find the solution of this polynomial, it'll be easiest to try and factor it. the first thing you need to do is move everything to one side:
</span>x² + 11x = -28 ... add 28
x² + 11x + 28 = 0 ... factor
(x + 7)(x + 4) = 0 ... now set both of your factors equal to zero and solve for x
x + 7 = 0
x = -7
x + 4 = 0
x = -4
Answer:
6 units by 7 units should be the dimensions
Please mark brainliest
Answer:
t = 0
Step-by-step explanation:
28 = 4t + 28
Take away 28 from both sides to make 4t by itself
28 - 28= 4t + 28 - 28
0 = 4t
Divide both sides by 4 to make t on its own
t = 0
