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Serggg [28]
4 years ago
13

Tell whether x and y show direct variation y=3x

Mathematics
1 answer:
bija089 [108]4 years ago
4 0

Answer:

Yes, they do

Step-by-step explanation:

Yes, y = 3x represents direct variation.  The fact that the line (graph) of y = 3x goes through the origin (0,0) reinforces this statement.

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The Thomas family went for a Sunday drive. Before they left, Mr. Thomas noticed the gas tank was ¾ full. When they returned home
JulijaS [17]

Answer:

7.5 gallons

Step-by-step explanation:

Given:

The Thomas family went for a Sunday drive.

Before they left, Mr. Thomas noticed the gas tank was ¾ full.

When they returned home the gas tank was ⅓ full.

Total capacity of the gas tank = 18 gallons

<u>Question asked:</u>

How many gallons of gas did the car use on the drive?

<u>Solu</u>tion:

Before they left, quantity of gas in the tank = \frac{3}{4} \times18=\frac{54}{4} =13.5\ gallons

When they returned, quantity of gas in the tank = \frac{1}{3} \times18=\frac{18}{3} =6\ gallons

Quantity of gas used on the drive = 13.5 - 6 = 7.5 gallons

Therefore, 7.5 gallons of gas used on the drive by Thomas family.

4 0
3 years ago
−1.75 − 22/20<br> plz hlep<br> ...and put as an exact decimal or simplified fraction
Mkey [24]

Answer:

-2.85

Step-by-step explanation:

I looked it up tbh

4 0
3 years ago
Read 2 more answers
In a basketball game Elena scored twice as many points as Tyler Tyler scores four points fewer than Noah and Noah scores three p
saveliy_v [14]

Full question:

In a basketball game, Elena scores twice as many points as Tyler. Tyler scores four points fewer than Noah, and Noah scores three times as many points as Mai. If Mai scores 5 points, how many points did Elena score? Explain your reasoning

Answer and explanation:

We start from known to unknown. We know that Mai scored 5 points and so we work from here.

Since Mai scored 5 points and Noah scored three times as many points then Noah's score = 3×5= 15 points

Since Tyler scored four points less than Noah, Noah's score= 15-4= 11 points

Finally Elena's score is twice that of Tyler hence Elena's score =2×11= 22 points

7 0
3 years ago
Nate walk 11 miles in 4 hours. At what unit rate does Nate walk?
coldgirl [10]

Answer:

2.75 or 2 3/4

Step-by-step explanation:

just divide 11/4 that's how many miles Nate walked every hour

4 0
3 years ago
PLEASE HELP!! URGANT!!
ella [17]

Answer: 100

set up equation: GHE+EHI=GHI

(x+38)+(x+104)=134

calculate

you get x= -4

put -4 into EHI

(-4)+104= 100

8 0
3 years ago
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