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DiKsa [7]
3 years ago
10

HURRY!!! PLEASE HELP WITH QUESTIONS!!!! WILL MAKE BRAINIEST ANSWER!!!!

Mathematics
2 answers:
GREYUIT [131]3 years ago
8 0
I would say the first one 3.30 and for 2.the 4th chart
Llana [10]3 years ago
4 0

Answer:

Part 1) option A 3.30\frac{\$}{gallon}

Part 2) Table 3 see the attached figure

Step-by-step explanation:

Part 1)

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form y/x=k or y=kx

The table represent a direct variation

The unit rate for one gallons of gasoline is equal to the constant of proportionality k

Let

x-----> the number of gallons

y-----> the price

so

For x=2\ gallons, y=\$6.60

Find the value of k

6.60/2=k

k=3.30\frac{\$}{gallon}

Part 2)

Let

x------> string instruments

y------>  percussion instruments

ratio=\frac{x}{y}

table 1

the ratio is equal to

ratio=\frac{2}{3}

table 2

the ratio is equal to

ratio=\frac{2}{5}

table 3

the ratio is equal to

ratio=\frac{2}{1}=2

table 4

the ratio is equal to

ratio=\frac{2}{4}=\frac{1}{2}

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Basile [38]
There are 60 seconds in one minute, and 60/5=12, so the race car would travel 100 feet every 5 seconds 12 times in one minute. You can simply multiply 100 by 12 to get your answer.
100x12=1200
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