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2 years ago

15

If a car can travel 78 miles using 3 gallons of gas, what is the unit rate?

2 answers:

Cloud [144]2 years ago

8 0

Answer:

26

Step-by-step explanation:

The unit rate refers to the distance the car can travel using 1 gallon of gas. One way to solve this is to create an algebraic equation like $78=3x$ . Then, to find the unit rate isolate x by dividing both sides by 3. This means that the unit rate is 26.

seraphim [82]2 years ago

5 0

Answer:

26

Step-by-step explanation:

Well since a car can travel 78 miles Using 3 gallons

78/3=26

26 miles for each gallon

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Eight randomly selected customers at a local grocery store spent the following amounts on groceries in a single visit: $216, $18

chubhunter [2.5K]

Answer:

a) 910

b) 828100

c) 144320

Step-by-step explanation:

a. ∑y

This is the sum of all values of y. So

$\sum y = 216 + 184 + 35 + 92 + 142 + 175 + 9 + 57 = 910$

b. (∑y)^2

This is the square of the sum, so the square of 910, that we found in the previous item.

910² = 828100

c. ∑y^2

This is the sum of the squares of each amount spent. So

$\sum y^2 = 216^2 + 184^2 + 35^2 + 92^2 + 142^2 + 175^2 + 9^2 + 57^2 = 144320$

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2 years ago

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vagabundo [1.1K]

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2 years ago

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Serjik [45]

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3 years ago

9. Solve the equation. Check your solution, if possible.<br> 1.5x + 1.3x = -8.4

Maksim231197 [3]

Answer:

-3

Step-by-step explanation:

1.5x + 1.3x = -8.4

2.8x = -8.4

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6 0

2 years ago

Read 2 more answers

Solve for x. 4−(2x+4)=5

WITCHER [35]

$4-(2x+4)=5\\-2x-4=1\\-2x=5\\x=-2.5$

Put it back into the equation,

$4-(2x+4)=5\\4-(2(-2.5)+4)=5\\4-(-5+4)=5\\4-(-1)=5\\5=5$

⭐ Please consider brainliest! ⭐

✉️ If any further questions, inbox me! ✉️

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2 years ago