Answer:
A= x=-4
B= x=4
C= y=4
D= y=-2
Step-by-step explanation:
Answer:
Step-by-step explanation:
Let x represent the number of spelling questions in the test.
Let y represent the number of vocabulary questions in the test.
Mrs morals wrote a test with 15 questions covering spelling and vocabulary. This means that
x + y = 15
Spelling questions (x) are worth 5 points and vocabulary questions (y) are worth 10 points. The maximum number of points possible on the test is 100. This means that
5x + 10y = 100 - - - - - - - - - - - 1
Substituting x = 15 - y into equation 1, it becomes
5(15 - y) + 10y = 100
75 - 5y + 10y = 100
- 5y + 10y = 100 - 75
5y = 25
y = 25/5 = 5
x = 15 - y = 15 - 5 = 10
Answer:
2, 5, 10
Step-by-step explanation:
50 divided by 2 = 25
50 divided by 5 = 10
50 divided by 10 = 5
50 divided by 15 = NOT POSSIBLE
Answer:
12 toppings
Step-by-step explanation:
There's a 60 cent difference in the base price, and the price of toppings is a 5 cent difference, so it would take 60/5 or 12 toppings to make up the difference. r, you can make a chart. Or you can do algebra and solve an equation:
6.75 + .75 x = 6.15 + .8x where x is the number of toppings. Subtract 6.15 from both sides.
.60 + .75x = .8 x Subtract .75x from both sides
.60 = .05x Divide both sides by .05
Answer:
C
Step-by-step explanation:
