First, let's make some variables then make an expression.
Let x = the number of pizzas
Let y = the number of salads
Then 12x = the price for x pizzas
Then 2y = the price y pizzas
Now we can make our expression.
We combine the costs for the pizzas and salads and delivery charge is added.
12x + 2y + 3
Now we have our expression. Replace the x with how many pizzas you bought and replace the y with how many salads you bought.
How much would 6 pizzas and 3 small salads would cost?
12(6) + 2(3) + 3 =
72 + 6 + 3 =
78 + 3 =
81
The answer to this question is $81.
EDIT:
I want to give a thank you to Irspow for finding my error!
Answer:
84
Step-by-step explanation:
Pretend her first 3 quizzes were all 83 since that was the average. So the 4th was 87.
83+83+83+87 = 336
Divide by the total number of quizzes because they are equally weighted.
336/4 = 84
Her new average score is 84.
Answer:
?
Step-by-step explanation:
?
Answer:
$1343
Step-by-step explanation:
The equation would be
x= 1580 (1-0.15)
x represents how much he actually pays.
1-0.15=0.85.
1580×0.85=1343
<span><span>−<span>5x</span></span>−<span>15y</span></span>−<span>5 is what i get</span>
