A different salad dressing uses a combined total of 2.5 cup of olive oil and vinegar per batch. Consider how many cups of this salad dressing are in 4 1/2 batches Is 8 cups in 4 1/2 batches a reasonable answer? Explain how to determine the number of decimal digits in the answer without solving the problem.

There are 11.25 cups of salad dressing

Step-by-step explanation:

A different salad dressing uses a combined total of 2.5 cup of olive oil and vinegar per batch.

Hence:

1 batch = 2.5 cup of salad dressing

4.5 batches = x

Cross Multiply

1 × x = 4.5 × 2.5

x = 11.25 cups of salad dressing.

Is 8 cups in 4 1/2 batches a reasonable answer? No it is not.

Explain how to determine the number of decimal digits in the answer without solving the problem.

The decimal digits in the answer is 2 decimal places. This is because

4.5 = 1 decimal place

2.5 = 1 decimal place

Adding the decimal places together = 2 decimal places.

can i see the following ?

step-by-step explanation:

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.