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Ganezh [65]
2 years ago
5

-3x + 9y = -24 -3x -3y = -24

Mathematics
1 answer:
Vanyuwa [196]2 years ago
5 0

Answer:

Step-by-step explanation:

-3x + 9y = -24

3x  + 3y = 24

12y = 0

y = 0

-3x + 9(0) = -24

-3x = -24

x = 8

(8,0)

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Is y=2x + 3 proportional or non-proportional<br><br>is y=5x proportional or non-proportional
olga nikolaevna [1]

Answer:

y=2x+3 is non-proportional. y=5x is proportional.

Step-by-step explanation:

y=2x+3 is not proportional because there is the +3. also, when it is graphed on a graph, the line does not pass through the origin/zero.

y=5x is proportional because it does not have any other values attached to the y value. when it is graphed, the lie goes through the origin/zero.

7 0
3 years ago
Wasted Water A faucet leaks 1 oz of water per minute. a) How many gallons of water are wasted in a year? (A gallon contains 128
dimaraw [331]

Answer:

a) 4106.25 gallons

b) $46          

Step-by-step explanation:

We are given the following in the question:

Leakage rate of faucet = 1 oz per minute

Cost of water = $11.20 per 1000 gallons

1 gallon = 128 oz

a) water are wasted in a year

1 hour = 60 minutes

1 day = 24 hours

1 year = 365 days

1\text{ year} = 365\times 24\times 60\text{ minutes}\\1\text{ year} = 525600\text{ minutes}

Amount of water wasted =

\text{Leakage rate}\times \text{Time}\\=1 \times 525600\\=525600\text{ oz}\\\\=\dfrac{525600}{128}\\\\=4106.25\text{ gallons}

Thus, 4106.25 gallons of water is wasted every year.

b) additional money spent

=\time{Cost}\times \text{Amount of water wasted}\\\\= \dfrac{11.20}{1000}\times 4106.25\\\\=45.99\$ \approx 46\$

Thus, approximately $46 is the additional money spent on water bill.

4 0
3 years ago
USE A NUMBER LINE TO FIND 8/9 / 8/45. 
zhuklara [117]
If you divide those two you get <span>0.0024691358 hope that helped</span>
4 0
4 years ago
What is the perimeter of triangle PQR? Show your work.
zubka84 [21]
You know that the two triangles are congruent because two sides and one angle are congruent.

According to CPCTC, corresponding parts of congruent triangles are congruent, which means that PR and SU are equal.

3y-2=y+4
3y=y+6
2y=6
y=3

3(3)-2=9-2=7

7+4+6=17

The perimeter is 17 feet.

Hope this helps!
6 0
3 years ago
There is a bag with only red marbles and blue marbles.
Genrish500 [490]

Answer:

49 red marbles

Step-by-step explanation:

We should first make 5/12 have a base of 84, so that'll be

(5*7)/(12*7)=35/84. So we have 35 blue marbles and all the rest are red, so 84-35=49

DUBS

Please consider giving me a brainliest! Thank you.

7 0
3 years ago
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