Answer: 7 1/30
Step-by-step explanation: convert to improper fractions then find lowest common denominator between them then add and simplify back to mixed fraction :)
Answer:
5 cups of sugar
Step-by-step explanation:
To make 60 cookies you need 3 cups of sugar.
If you divide 60 / 3 you get 20.
That means: 1 cup = 20 cookies
Therefore to make 100 cookies you need 5 cups of sugar!
Answer:
make Y the subject in eqn........ 1
y + 7 = 2x
y = 2x - 7...........eqn 3
put y = 2x - 7 into eqn 2
x² - xy + 3y² = 15
x² - x(2x - 7) + 3(2x - 7)(2x - 7) = 15
x² - 2x² + 7x + 3(4x² + 14x -14x + 21) = 15
x² - 2x² + 7x + 12x² + 42x - 42x + 63 = 15
x² - 2x² + 7x + 12x² + 63 = 15
x² - 2x² + 12x² + 7x + 63 = 15
11x² + 7x + 63 - 15 = 0
11x² + 7x + 48 = 0
11x² + 7x = - 48
11x²/11 + 7x/11 = - 48/11
x² + 7x
Answer:
As a mixed number, 8/3 is equal to 2-2/3.
Step-by-step explanation:
Answer:
105/7= 15 people will seat at each table.
Step-by-step explanation:
