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pickupchik [31]
3 years ago
7

Pleaseeeeeeee helpppppppppppppp!!! :)

Mathematics
2 answers:
vazorg [7]3 years ago
6 0

Answer:

x=-1

y=2

Step-by-step explanation:

3x+2y=1

x-3y=-7

x=3y-7

3(3y-7)+2y=1

9y-21+2y=1

11y=1+21

11y=22

y=22/11=2

x=3(2)-7=6-7=-1

mrs_skeptik [129]3 years ago
5 0

x=0.2

y=2.4

\frac{0.2}{2.4} \\

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Over the last three evenings, Mary received a total of 116 phone calls at the call center. The third evening, she received 3 tim
Tanya [424]
<h2>Answer:</h2>

First day - 25 calls

Second day - 16 calls

Third day - 75 calls

<h2>Step-by-step explanation:</h2>

You need to set variables and create system of equations first.

First evening=  x

Second evening= y

Third evening = z

x+y+z=116

z=3x

y=x-9

Now you plug in the values into the equation x+y+z=116

x+(x-9)+(3x)=116

5x-9=116

5x=125

x=25

You plug in the value of x into the other equations.

x= 25

z= 3*(25)=75

y=(25-9)=16

Rearrange so it corresponds with days...

First day - 25 calls

Second day - 16 calls

Third day - 75 calls

5 0
3 years ago
Read 2 more answers
PLEASE HELP! PLEASE!!!!!!!
Sloan [31]

Using the equation of the proportional relationship:

Average rate of speed = 60

Time taken to go 300 miles = 5 hrs

Distance travelled in 2.5 hrs = 150 miles

<h3>What is a Equation of a Proportional Relationship?</h3>

A equation of a proportional relationship models the relationship between two variables, x and y, that has a constant of k. It is expressed as y = kx.

Given the following:

Equation: d = 60t

d = distance in miles

t = time in hours

Average rate of speed for the bus = k = 60

Time (t) it would take to go 300 miles (d):

300 = 60(t)

300/60 = t

t = 5 hours

Distance (d) it would travel in 2.5 hours (t):

d = 60(2.5)

d = 150 miles

Learn more about the equation of a proportional relationship on:

brainly.com/question/6869319

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8 0
2 years ago
What is the length of AP in AABC?
Tanya [424]
The length of AP. Is just the length of AP
8 0
3 years ago
3. What is the sum of 1/9, 2/3, and 5/18?<br>А. 19/18<br>b. 4/15<br>C. 12/9<br>D. 8/30​
4vir4ik [10]

Answer:

A,19/18

Step-by-step explanation:

I don't know exactly how to explain it...

4 0
3 years ago
Write a program that will enable Tracy to draw one circle with a diameter of 50
e-lub [12.9K]

Answer:

circle(50)

Step-by-step explanation:

The circle should have a diameter of 50 so the answer is simply "circle (50)"

8 0
3 years ago
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