if you can buy 8 gallons of gas for $25.60, what is the cost per gallon? use a proportion to slove and show all work

Mathematics

2 answers:

Dmitriy789 [7]3 years ago

5 0

Answer:

25.60/8=3.2 because to find per gallon 8/8=1 and 25.60/8=3.2

Step-by-step explanation:

earnstyle [38]3 years ago

3 0

Set up a proportion:

8 gallons 1 gallon

------------------ = -------------------

25.60 dollars x dollars

Then, cross multiply

8x= 25.60

x = 3.20 dollars

You might be interested in

A department store has daily mean sales of $28,372.72. The standard deviation of sales is $2000. On Tuesday, the store sold

DiKsa [7]

Answer:

Tuesday z-score was 3.26.

Tuesday was a significantly good day.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

A score is said to be significantly high if it has a z-score higher than 1.64, that is, it is at least in the 95th percentile.

In this problem, we have that:

$\mu = 28372.72, \sigma = 2000$