Answer:
7x+y=-5
Step-by-step explanation:
-y=7x+5
7x+y=-5
Answer:
18 movies
Step-by-step explanation:
1) Subtract the monthly charge from Marissa's total allowance
28.50 - 5.00 = 23.5
2) Divide 23.5 by the charge per movie.
23.5/1.25 = 18.8
3) Since there cannot be 4/5 of a movie, Marissa can spend enough to watch 18 movies.
X^2 = 300^2 + 175^2 - 2 (300)(175) cos 150
x^2 = 90000 + 30625 + 90932
x^2 = 211557
x = 459.95 miles
Chris baked 95 cookies.
Step-by-step explanation:
Given,
Cookies baked by Haley = 50
Cookies baked by Chuck = 65
Cookies baked by Dana = 90
Average of them = 75
Let,
Cookies baked by Chris = x
Average = 

Multiplying both sides by 4

Chris baked 95 cookies.
Keywords: addition, average
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