Answer:
x = - 6
Step-by-step explanation:
Let x b number, according to instructions´ we must
1.-Multiply by 4
2.-Subtract 6
3.-Divide by 2
4.-Arturo says his new number - 15
4,.Which one was the original number ??
The maths expression for that is :
(4*x - 6 ) / 2 = - 15
we solve for x
4x - 6 = - 30
4x = - 24
x = - 6
X is a variable, a variable you have to divide to cancel out
The ratio is 4:5 girls to boys
22 dollars + 39 dollars = 61 dollars
100-61= 39 dollars. She needs $39 more
