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Zina [86]
3 years ago
14

Find the solutions -2x+8y=14 -2x-2y=-26

Mathematics
1 answer:
emmasim [6.3K]3 years ago
3 0
X=-33 y= 10

Leave first row the same multiply 2nd row by -1
-2x+8y=14
2x+2y=26
10y= 40
Y=4
-2x+8(10)=14
-2x+80=14
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Bonita said that the product of 5/6 times 1 2/3= 7/3. How can you tell that her answer is wrong?
Masja [62]

Answer:

B. 5/6 of a number cannot be greater than the number.

7/3 = 2 1/3 > 1 2/3

6 0
2 years ago
Hw 24 area of parallelogram
Papessa [141]

Answer:

<h2>The width, x, of this parallelogram is 16 cm.</h2>

Step-by-step explanation:

In #14, the area of the parallelogram is 528 cm².

This area is also the value of the formula A = L·W:

A = 528 cm² = (33 cm)·W

To determine the width, W, of this parallelogram, we perform the following division:

W = (528 cm²) / (33 cm) = 16 cm

The width, x, of this parallelogram is 16 cm.

7 0
3 years ago
A restaurant needs to plan seating for a party of 150 people. Large tables seat 10 people and small tables seat 6. Let x represe
grandymaker [24]

Answer:

(0, 25) or (3, 20) or (6, 15) or (9, 10) or (15, 0)

Step-by-step explanation:

4 0
2 years ago
Please Elijah and Aubrey have summer jobs Elijah deposits the same amount of money in his account every week the equation is y =
Anika [276]

Answer:

Part a) y=125x+23

Part b) The graph of the equation for Aubrey's balance is parallel to the graph of Elijah's balance

Part c) Parallel graphs mean that their slopes are the same and that they deposited the same amount of $125 per week into their account balance during the summer.

Step-by-step explanation:

<u><em>The correct question is</em></u>

Elijah and Aubrey have summer jobs. Elijah deposits the same

amount of money in his account every week. The equation y = 125x + 72 represents his bank balance any given week of the summer. Aubrey also deposits the same amount into her account every week. At the end of the third week she has $398. At the end of the sixth week she has $773.

a. Write an equation to represent Aubrey's bank balance any given week of the summer.

b. Would the graph of the equation for Aubrey's balance be parallel to the graph of Elijah's balance? Explain.

c. What do the parallel graphs mean in terms of the situation?

Part a)

Let

x ----> the number of weeks  

y ----> represent bank's balance

we know that

<em>Elijah</em>

y=125x+72 -----> equation A

<em>Aubrey</em>

we have the points

(3,398) and (6,773)

Find the slope m

m=(773-398)/(6-3)

m=375/3

m=125

Find the equation of the line in point slope form

y-y1=m(x-x1)

we have

m=125

point\ (3,398)

substitute

y-398=125(x-3) ----> equation in point slope form

Convert to slope intercept form

y=mx+b

y-398=125x-375

y=125x-375+398

y=125x+23 ----> Aubrey's bank balance

Part b)

Compare the equations

y=125x+72 ----> Elija's bank balance

y=125x+23 ----> Aubrey's bank balance

Remember that

If two lines are parallel, then their slopes are equal

In this problem the slopes are equal

m=125\frac{\$}{week}

therefore

The graph of the equation for Aubrey's balance is parallel to the graph of Elijah's balance

Part c) Parallel graphs mean that their slopes are the same and that they deposited the same amount of $125 per week into their account balance during the summer.

5 0
2 years ago
First day of winter what locker number are they on
lara31 [8.8K]
The locker ? Can you explain more please .
7 0
3 years ago
Read 2 more answers
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