In order to solve this, we need to figure out how much ONE student spends.
dollars per student.
If 10 student spent for lunch, we just have to multiply our number by how much each student spends.
Answer:
5
Step-by-step explanation:
→ Let x = √20 + √20 .....
x
→ Square both sides
x² = 20 + √20 +√20 + √20
→ Replace √20 +√20 + √20 with x
x² = 20 + x
→ Move everything to the left hand side
x² - 20 - x = 0
→ Factorise
( x + 4 ) ( x - 5 )
→ Solve
x = -4 , 5
→ Discard negative result
x = 5
Answer:
no, I did the work and I came with your same conclusion, but Im not that good with this type of math but In my terms I think its right
Step-by-step explanation:
I think its B.
Thanks is welcomed.
Step-by-step explanation:
r = 7x + 7y
8 = 7x + 7 ×2
8 = 7x + 14
7x = 14 - 8
7x = 6
X = 6 / 7
