The answer is 41.
Let the number of guest be x.
$15 per guest is: 15x
There is addition of $60 because of the mistake: +60
The final bill was 675:
675 = 15x + 60
675 - 60 = 15x
615 = 15x
x = 615 / 15
x = 41
8+20-2r which is equal to 28-2r so it is (B)
Answer:
a) 8x + 5x = 13x
b) 9f + 10f - 12f = 7f
Step-by-step explanation:
For part b, just solve from left to right normally, since adding and subtracting are inverse operations. (Inverse operation; meaning they are opposites of each other.)
So 9 + 10 = 19, and 19 - 12 = 7.
Hope this helps you :)
X - 1
Y - 1
Step by step explanation :
3(1)+6(1)=9
Answer:
2.6 hr
Step-by-step explanation:
distance / rate = time
rate = 75 + 95 = 170 mile/hr
distance = 442 miles
442 miles / 170 mile/hr = 2.6 hr
