Answer:
=3
=−3
Step-by-step explanation:
Answer:y = 10.5
Step-by-step explanation:
First, assign a variable to each unknown value.
Let:
x = cost of the pepperoni pizza
y = cost of the plain pizza
Next, set up equations based on the word problem. We then have the following equations:
(1) 3x + 2y = 58.50
(2) 2x + 4y = 67
Equation (1) comes from the statement: "Jack paid 58.50 for 3 pepperonies and 2 plain pizzas". Equation (2), on the other hand, translates the statement: "Jill paid 67 for 2 pepperonies and 4 plain pizzas".
To solve for two unknown variables given two independent equations, eliminate one variable first. That is, multiply equation (1) to -2.
-2[3x + 2y = 58.50]
-6x -4y = -117
Then add this to equation (2):
-6x -4y = -117
2x + 4y = 67
-------------------
-4x = -50
x = -50/-4 = 12.5
To solve for y, we use equation (2) and substitute the value of x which has been solved already.
2(12.5) + 4y = 67
y = 10.5
To summarize, they paid $12.50 for the pepperoni pizza while they paid $10.50 for the plain pizza.
Answer:
25 Nickles
Step-by-step explanation:
n + q = 38
0.05n + 0.25q = 4.50
n + q = 38
q = 38 - n
0.05n + 0.25q = 4.50
0.05n + 0.25(38 - n) = 4.50
0.05n + 9.5 - 0.25n = 4.50
-0.2n + 9.5 = 4.50
-0.2n = 4.50 - 9.50
-0.2n = -5
-0.2n/0.2 = -5/0.2
-n = -25
-n/-1 = -25
n = 25
Answer:
Step-by-step explanation:
I think your question is missing key information, allow me to add more so it can meet your requirements
<em>A shop keeper sold some products.The results of the number of products sold are shown below. Which product had the greatest percentage of its inventory sold?</em>
<em>a. 40 mango jellies out of the 80 jelly are sold. </em>
<em>b. 68% of the apple juice is sold. </em>
<em>c. 0.475 of the cake are sold. </em>
My answer:
<em>a</em>. 40 mango jellies out of the 80 jelly are sold
= 40/80*100% = 50% sold
b. 68% of the apple juice is sold
c. 0.475 of the cake are sold
= 0.475*100% = 47.5%
So apple had the greatest percentage of its inventory sold which is 68%
Answer:
A,C,D.
Step-by-step explanation: