Answer: d.) 3.6x + 6.1
Step-by-step explanation:
Combine like terms
6.4x + 3.1 + (-2.8x) + 3
(6.4x - 2.8x) + (3.1 + 3)
3.6x + 6.1
Answer:
Step-by-step explanation:
243+94+b=360
b=360-337
=23
we switched side of -6 and added it to 2
2x + 10 = 64 now we squared both sides to get rid of square root
2x = 54 we switched side of +10 and subtracted it from 64
x = 27 we divided both sides with 2
answer is x = 27
Answer: B
Step-by-step explanation:
To solve the system of equations, use substitution.
x+y =24
Subtract x on both sides
y=-x+24
We can now substitute -x+24 in for y in the second equation.
3x+5y=100
3x+5(-x+24)=100
Distribute the 5
3x-5x+120=100
Subtract the 120 on both sides
-2x=-20
Divide by 2 on both sides
x=10
Substitute 10 in for x in the first equation.
x+y=24
10+y=24
Subtract 10 inches on both sides
y=14
So there are 10 3point questions and 14 5 point questions, so choice B
Hope this helped!
