If you would like to know the value of x in the solution to the system of equations, you can find this using the following steps:
6x + 3y = 13
3x - y = 4 ... y = 3x - 4
___________
<span>6x + 3y = 13
</span>6x + 3 * (3x - 4) = 13
6x + 9x - 12 = 13
15x = 13 + 12
15x = 25
x = 25/15
x = 5/3
The correct result would be 5/3.
Answer:
so the number of boys is 36
Step-by-step explanation:
let the number of boys be x
by using ratio and proportion rule
5:6=30:x
by cross-multiplication
5×x=6×30
5x=180
x=36
i hope this will help you :)
Answer:
x ≥ 56
Step-by-step explanation:
The whole problem will have to equal at least 120. If Xander has already collected 64, then he has a certain number of cans, x, remaining to collect. Since the problem is saying he needs "at least 120" then x and 64 must have a sum of at least 120. Thus you set up the problem like:
x + 64 ≥ 120
You can solve this simply by subtracting 64 from both sides.
x + (64-64) ≥ (120-64)
That would leave us with the answer:
x ≥ 54
Hope this helps!
Answer:
72 deg
Step-by-step explanation:
It is divided into 5 equal parts, so each of them has a measure of 360°/5=72°
