LaibaAbdullah
Answered

Welcome to Westonci.ca, your go-to destination for finding answers to all your questions. Join our expert community today! Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.


Barbara buys 3 boxes of eggs costing £1.20 each, 1 jar of mayonnaise costing £1.80 and 2 loves of bread. She pays with a £10 note and gets £1.60 change. Barbara works out the cost of 1 loaf of bread as £1.40. Is she correct?

Sagot :

Answer:

Barbara was not correct

Step-by-step explanation:

We can start by getting our variables straight so we can plug in values later.

x will be boxes of eggs

y will be the jar of mayonnaise

z will be the loaves of bread.

Then we can plug in our values

3x+y+2z=10-1.4

Plug in the euro values

3(1.2)+1.8+2z=10-1.4

Solve

3.6+1.8+2z=10-1.4

5.4+2z=8.6

Subtract 5.4 from both sides.

2x=3.2

Divide both sides by 2.

1.6

Now time to check my work.

3.6+1.8+2(1.6)=8.6

5.4+3.2=8.6

8.6=8.6

Barbara was wrong.

Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. We appreciate your time. Please revisit us for more reliable answers to any questions you may have. Westonci.ca is committed to providing accurate answers. Come back soon for more trustworthy information.