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3 years ago

Help me PLZZZZ ITSS EASSYYYYYY

Mathematics

1 answer:

vodka [1.7K]3 years ago

5 0

Answer:

The total cost y of a meal.....

Step-by-step explanation:

The total cost of the meal Y suggests addition, which if you added the x and w portions, you would end up with y.

The other answers suggest subtraction, division, or multiplication, which is not being illustrated by the model.

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SOLVE BY ELIMINATION. x-2y=2 3x+y=6

USPshnik [31]

$\left \{ {{x-2y=2} \atop {3x+y=6\ |\cdot2}} \right. \\\\ \left \{ {{x-2y=2} \atop {6x+2y=12}} \right. \\+-----\\\\7x=14\ \ \ \ |:7\\x=2\\\\2-2y=2\\-2y=2-2\\-2y=0\\y=0\\\\ \left \{ {{y=0} \atop {x=2}} \right.$

7 0

2 years ago

Plz help... 50 points and brainliest for correct answers

pogonyaev

Step-by-step explanation:

Hi,

For the first screenshot, your answer will be...

A) 1/10 + 1/4 ≤ 1

And for the second screenshot, your answer will be...

A) d ≤ -1/2n + 5

I hope this helps :)

7 0

3 years ago

3. Solve using substitution. x - y = 4 3x - 2y = -5

Vedmedyk [2.9K]

Given:

The system of linear equations are $x-y=4$ and $3x-2y=-5$

We need to determine the solution to the system of equations using substitution method.

Solution:

The solution can be determined using the substitution method.

Let us substitute $x=4+y$ in the equation $3x-2y=-5$

Thus, we have;

$3(4+y)-2y=-5$

$12+3y-2y=-5$

$12+y=-5$

$y=-17$

Thus, the value of y is -17.

Substituting $y=-17$ in the equation $x-y=4$ , we get;

$x+17=4$

$x=-13$

Thus, the value of x is -13.

Hence, the solution to the system of equations is (-13,-17)

6 0

3 years ago

Which expression is equivalent to negative 4 times 4 times 4 times 4 times 4 times 4 times 4 times 4?

nataly862011 [7]

Answer:

-4*4^7

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

The height of a door is 1.6 feet longer than its width, and its front area is 1489.3 square feet. Find the width and height of t

padilas [110]

Answer:

The width of the door to be 39.10 ft, and the height to be 40.7 feet.

7 0

2 years ago