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yarga [219]
3 years ago
10

Please right answer for 25 pts and a mark. A store is having a sale on chocolate chips and walnuts. For 3 pounds of chocolate ch

ips and 2 pounds of walnuts, the total cost is $ 11 . For 8 pounds of chocolate chips and 4 pounds of walnuts, the total cost is $ 25 . Find the cost for each pound of chocolate chips and each pound of walnuts.
Mathematics
1 answer:
Alexxandr [17]3 years ago
3 0

Answer:

Chocolate Chips are 1.50 per pound and Walnuts are 3.25 per pound.

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The amount of gas consumed by first and second car were 20 gallons and 15 gallons respectively.

<em><u>Explanation</u></em>

Suppose,  x gallons of gas were consumed by the first car.

As the total gas consumption in one week is 35 gallons, so the amount of gas consumed by second car will be:  (35-x) gallons.

The first car has a fuel efficiency of 35 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas.

So, the <u>distance traveled by the first car</u> in x gallons of gas =35x miles and the <u>distance traveled by the second car</u> in (35-x) gallons of gas =15(35-x) miles.

Given that, the two cars went a <u>combined total of 925 miles</u>. So, the equation will be.....

35x+15(35-x)=925\\ \\ 35x+525-15x=925\\ \\ 20x=925-525=400\\ \\ x=\frac{400}{20}=20

So, the amount of gas consumed by the first car is 20 gallons and the amount of gas consumed by the second car is: (35 - 20) = 15 gallons.

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