Let his total money be x.
He spent (3/7)*x of his money.
He gave 1/4(x-3/7x) to his sister.
which is : (1/4)*(4/7)*x = (1/7)*x
Now,
How much money he have in the beginning =
(3/7)*x+(1/7)*x+120=x
(4/7)*x+120=x
120=x-(4/7)*x
120=(3/7)*x
x=120*7/3 [cross multiplication]
x=280.
So, Alex had $280 in the beginning.
Answer:
D. 32
Step-by-step explanation:
For this problem, we simply plug -9 in for x in f(x):
⇒ 
Thus, the answer is D. 32.
Hope this helps!
What am I answering tho because p can be parallel to r by AA theorem
Answer: 6.7*10^-5
Step-by-step explanation:
To find perimeter, you use this equation for a parallelogram:
2l+2w=p
Let’s not put the numbers in,
2(12)+2(8)
24+16
40
So b, 40 yards is how much he walked.
To
