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4 years ago

Sam drove 220 miles on 8 gallons of gas find the unit rate

Mathematics

1 answer:

frez [133]4 years ago

5 0

Answer:

unit rate= 27.5 miles per gallon

Step-by-step explanation:

unit rate = miles/gallons

unit rate = 220 miles/8 gallons

the bottom number must be 1

unit rate = 220/8 miles per gallon

unit rate= 27.5 miles per gallon

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32 assignments have been turned in. 14 didn't have names. The rest were put into 3 equal piles to grade over 3 days. How many as

denpristay [2]

Answer: is 6 because if you take away 32 and 14 you will get 18 and if you divide 18 into 3 equal piles for three days you will get 6.......graded assignments

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6 0

3 years ago

Solve the system using elimination<br><br> 2x+3y=14<br> x+5y=14

natali 33 [55]

Answer:

x = 4 , y = 2

Step-by-step explanation by elimination:

Solve the following system:

{2 x + 3 y = 14 | (equation 1)

x + 5 y = 14 | (equation 2)

Subtract 1/2 × (equation 1) from equation 2:

{2 x + 3 y = 14 | (equation 1)

0 x+(7 y)/2 = 7 | (equation 2)

Multiply equation 2 by 2/7:

{2 x + 3 y = 14 | (equation 1)

0 x+y = 2 | (equation 2)

Subtract 3 × (equation 2) from equation 1:

{2 x+0 y = 8 | (equation 1)

0 x+y = 2 | (equation 2)

Divide equation 1 by 2:

{x+0 y = 4 | (equation 1)

0 x+y = 2 | (equation 2)

Collect results:

Answer: {x = 4 , y = 2

4 0

3 years ago

Read 2 more answers

Dana loves rocks! She has 666 pieces of granite, 333 pieces of marble, 141414 pieces of sandstone, and 111 piece of slate. What

Lilit [14]

Answer: $14:3$

Step-by-step explanation:

<h3> The exercise is:</h3><h3> "Dana loves rocks! She has 6 pieces of granite, 3 pieces of marble, 14 pieces of sandstone, and 1 piece of slate. What is the ratio of pieces of sandstone to pieces of marble in Dana's collection?"</h3><h3></h3><h3> </h3>

You can use ratio to compare values.

By definition, ratios can be written in the following form:

$a:b$

In this case, you know that the number of pieces of different rocks that Diana has in her collections, are:

$granite=6\ pieces\\\\marble=3\ pieces\\\\sandstone=14\ pieces\\\\slate=1\ piece$

Since you must compare the number of pieces of sandstone and the number of pieces of marble in Dana's collection, you need to write the following ratio:

$sandstone:marble\\\\14:3$