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AlekseyPX
3 years ago
7

Use Elimination to solve the system below, find X!!!

Mathematics
2 answers:
grin007 [14]3 years ago
5 0
The answer is x=2 that is the answer
aleksklad [387]3 years ago
4 0
X=2 and Y=3

Written out form: 3x + 3y=15
3•x + 3•y=15
3•2 + 3•3=15
6+9=15

Written out form: 2x + 3y= 13
2•x+ 3•y=13
2•2+3•3=13
4+9=13


=
=

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What is the slope of the line shown below?
Gemiola [76]

Answer:

C.

Steps:

Using points (1,0) and (0,3), you can find the slope.

3 - 0 = 3

1 - 0 = 1

3/1 = 3

4 0
3 years ago
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aalyn [17]
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7 0
2 years ago
POSSIBLE POINTS: 2
serious [3.7K]

Answer:  max capacity is 1625 gallons.

Diagram is shown below.

=========================================================

Explanation:

We'll draw two horizontal number lines to help make a comparison or connection between percentages and tank capacity.

For the top number line, make 5 sections with the labels: 0%, 20%, 40%, 60%, 100%. The reason I'm picking 5 is because 40% = 40/100 = 2/5. So having 40% capacity means we're 2/5 full. That denominator 5 tells us how to subdivide each number line.

The bottom number line will also have 5 sections. We only know one label for this bottom portion right now. That label is 650. Place this directly under the "40%". This visually is one way to represent that 650 gallons is 40% filled. See the diagram below.

Cut the 650 in half to get 325. This corresponds to 40% cut in half to get 20%. Therefore, 325 will go under the 20%. Being 20% full means we have 325 gallons of water.

To figure out the 60% portion, we will multiply 325 by 3. This is because 3*20% = 60%, so 3*325 = 975. We'll write "975 gallons" under the "60%"

Then we have 1300 gallons under the 80% since 4*325 = 1300. Note how 4*20% = 80%, so that's where the '4' multiplier comes from.

Finally, we multiply 325 by 5 to get 1625 and that represents the full tank's capacity. Technically we could have just jumped to this directly without having to find the 60% or 80% capacity values, but it's good practice I think.

Again the diagram is shown below. The answer we're after is at the very bottom right corner. It's under the 100% to indicate the tank is completely full, or has reached max capacity.

-----------------------

Here's a way to find the answer without a double number line. This method involves setting up a proportion.

(40% full)/(650 gallons) = (100% full)/(x gallons)

40/650 = 100/x

40x = 650*100

40x = 65000

x = 65000/40

x = 1625

We confirm that the tank's max capacity is 1625 gallons.

4 0
2 years ago
If 3 pounds of apples cost $3.85, how much will 18<br> pounds of apples cost?
Mekhanik [1.2K]

Answer: $23.10

Step-by-step explanation:

18/3 = 6

3.85 x 6 = $23.10

8 0
2 years ago
Can someone please help
allsm [11]

Answer:

Concurrent as my perception

3 0
3 years ago
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