Answer:
All kids at the movie = x
42 / x = .60
x = 42 / .60
x = 70 total kids were at the movie.
Step-by-step explanation:
1. open parentheses ,so
distribute <span>-3 to 4x and -7
2. add to both sides of the equation </span><span>2x
3. </span>subtract from both sides of the equation 21
4. divide both sides of the equation by -10
Answer:
Step-by-step explanation:
(7x - 1)° + (6x - 1)° = 180°
(13x - 2)° = 180°
13x = 182°
x = 182°/13
x = 14
I hope I helped you.
If the euros in your account are untouched for fifteen years then you should accumulate 6488.7 euros
10a + 8b = 230
a + b = (2 + 2 + 13 + 10)...a + b = 27 (this is the number of gifts to buy)
a = 27 - b
10(27 - b) + 8b = 230
270 - 10b + 8b = 230
-10b + 8b = 230 - 270
-2b = -40
b = -40/-2
b = 20 <=== she bought 20 eight dollar gifts
a = 27 - b
a = 27 - 20
a = 7 <=== she bought 7 ten dollar gifts