Answer:
The directions for a homemade glass cleaner call for 1 part vinegar to 4 parts water. Mr. Gilbert mixed 2 cups of vinegar with 5 cups of water. Did he use a correct ratio of vinegar to water? Explain.
Answer:
A. because -4 is 4 units away from 0.
Using proportions, it is found that the original sample weighed
grams.
- This question is solved by <em>proportions</em>, using a rule of three.
- The weight of 1 batch, in grams, is of
. How much do the sample of 12 batches weigh?
The rule of three is:
1 batch -
grams.
12 batches - x grams
Applying cross multiplication:

Applying scientific notation:

The original sample weighed
grams.
You can learn more about proportions at brainly.com/question/24372153
£3.99 divided by 8 is £0.49875
Which, changed into pence and rounded up, is 50p.
£2.79 divided by 6 is £0.465
Which, changed into pence and rounded up is 47p.
50p is bigger than 47p
50 subtract 47 is 3p
The second one has the better value for money as it costs 3p less per battery.