Answer:
They did not leave the correct amount. They left around a 22% tip
Step-by-step explanation:
15% = 0.15
68.25(0.15)
10.24
22% = 0.22
68.25(0.22) = 15.02
Answer:
1
Step-by-step explanation:
12233
Answer:
8x - 36
Step-by-step explanation:
Use distributive property: a(b + c) = a*b + a*c
4(2x - 9)= 4*2x - 4*9
= 8x - 36
Answer:
36
Step-by-step explanation:
when solving for two variables, we need to find one variable in terms of the other.
so, we can turn:
x - y = 5
into
x - y = 5
+ y + y
x = y + 5
Then, we can substitute "x" in the given equation with "y + 5"
x² - y² = 30
(y+5)² - y² = 30
(y + 5)(y + 5)
F: y² O: +5y I: +5y L: 25 {foil}
y² + 10y + 25 - y² = 30 {cancel y² - y²}
10y + 25 = 30
-25 -25
10y = 5
÷10 ÷10
y = 0.5
x = y + 5
x = 0.5 + 5
x = 5.5
check:
(5.5)² - (0.5)²
30.25 - 0.25 = 30
30 = 30
(TRUE)
now, we must find the value of:
(5.5 + 0.5)²
= (6)²
= 36
So, the value of (x + y)² is found to be 36
hope this helps!!
None? I’m guessing since 8+5 is 13 and 13+11=24
