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timama [110]
4 years ago
5

Here's a graph of a linear function. Write the

Mathematics
1 answer:
Savatey [412]4 years ago
4 0

there is no visible graph

Step-by-step explanation:

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Mr. Sanchez’s class sold fruit pies for $1.55 each and Mr. Kelly’s class sold bottles of fruit juice for $1.40 each. Together, t
hoa [83]

Answer:

Mr. Sanchez's class sold 28 fruit pies and Mr. Kelly's class sold 32 bottles of fruit juice.

Step-by-step explanation:

Let x be the number of fruit pies sold and y be the number of bottles of fruit juice sold.

Together, the classes sold 60 items, so

x + y = 60

Mr. Sanchez’s class sold fruit pies for $1.55 each, so x fruit pies cost $1.55x.

Mr. Kelly’s class sold bottles of fruit juice for $1.40 each, so y bottles of fruit juice cost $1.40y.

Together, the classes  earned $88.20 for their school, so

1.55x + 1.40y = 88.20.

You get the system of two equations:

\left\{\begin{array}{l}x+y=60\\ \\1.55x+1.40y=88.20\end{array}\right.

From the first equation:

x=60-y

Substitute it into the second equation:

1.55(60-y)+1.40y=88.20\\ \\93-1.55y+1.4y=88.2\\ \\-0.15y=88.2-93\\ \\-0.15y=-4.8\\ \\0.15y=4.8\\ \\15y=480\\ \\y=32\\ \\x=60-32=28

Mr. Sanchez's class sold 28 fruit pies and Mr. Kelly's class sold 32 bottles of fruit juice.

8 0
3 years ago
Why and how do you do this I am having a hard time
sukhopar [10]

Answer:

Peter walks at a rate of 13/4 miles per hour.

Step-by-step explanation:

Peter walks at a rate of 13/4 miles per hour because every hour, <em>represented by x</em>, he walks 3.25 hours or 13/4. y is the total miles he walked so if he walks two hours the y would equal 6.5 or 26/4 and the x would equal 2.

3 0
3 years ago
A phone is on sale for 40% off the original price is $550 what price will you pay
Leni [432]

Answer:

$330

Step-by-step explanation:

40% of $550 is $220

$550 - $220 = $330

3 0
3 years ago
What is center of a circle whose equation is x2
victus00 [196]

Answer:

I think it is 160 x2 so you would probably divide 160 by x2 which would 144

Step-by-step explanation:

3 0
3 years ago
Find the reference angle of -320 degrees
CaHeK987 [17]

Answer:

  40°

Step-by-step explanation:

The reference angle is the positive difference between an angle and the nearest multiple of 180°.

Here, the nearest multiple of 180° is -360°. The difference of interest is ...

  |-320° -(-360°)| = 40°

The reference angle is 40°.

3 0
3 years ago
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