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2 years ago

13

Someone answer my question Answer ASAP will mark brainliest I promise

2 answers:

aleksley [76]2 years ago

7 0

Answer:

1. x=13 2. x=9 3. y=10

Step-by-step explanation:

Pepsi [2]2 years ago

5 0

Answer:

1. x+y=16 (the y’s cancel because they are inverse operation)

x-y=10 (x+x=2x and 16+10=26 now the equation is 2x=26 now just solve for x by dividing 2 on both sides 26/2=13)

YOUR NOT DONE YET: (Now that we've found x let's plug it back in to solve for y.Write down an original equation I’m using x+y=16 And Substitute 13 for x)

the equation is 13+y=16 now subtract 13 on both sides and you should get y=3

2. for number 2 it’s the same as number 1

3. in this one the x will cancel each other because they are inverse)

(for the rest please use the website: Mathpapa it’s very helpful I would do more but I’m running out of time hopefully you can use this as a example to do the rest I’m really sorry I couldn’t do the rest)

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What is the product for 3-7x

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2 years ago

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Select all of the points that are solutions to the system of linear inequalities that is listed below 10x + 4y < 12 8x -3y &g

liberstina [14]

Answer:

(3, -8) and (2, -10)

Step-by-step explanation:

Given

$10x + 4y < 12$

$8x - 3y > 20$

Required

Select the true coordinate points in (3, -8) (2, 5) (-5, 1) (10, 3) (2, -10)

(3, -8)

x = 3 and y = -8

$10x + 4y < 12$

$10 * 3 + 4 * -8 < 12$

$30 - 32 < 12$

$-2 < 12$ --- True

$8x - 3y > 20$

$8 * 3 - 3 * -8> 20$

$24 +24> 20$

$48> 20$ --- True

(2, 5)

x = 2 and y = 5

$10x + 4y < 12$

$10 * 2 + 4 * 5 < 12$

$20 + 20 < 12$

$40 < 12$ --- False (No need to check the other inequality)

(-5, 1)

x = -5 and y = 1

$10x + 4y < 12$

$10 * -5 + 4 * 1 < 12$

$-46 < 12$ --- True

$8x - 3y > 20$

$8 * -5 - 3 * 1 > 20$

$-43 > 20$ --- False

(10, 3)

x = 10 and y = 3

$10x + 4y < 12$

$10 * 10 + 4 * 3 < 12$

$112 < 12$ --- False (No need to check the other inequality)

(2, -10)

x = 2 and y = -10

$10x + 4y < 12$

$10 * 2 + 4 * -10 < 12$

$-20 < 12$ --- True

$8x - 3y > 20$

$8 * 2 - 3 * -10 > 20$

$46 > 20$ --- True

Hence, the solution to the inequalities are:

(3, -8) and (2, -10)

4 0

2 years ago

Toni paints a wall that is 9 feet tall and 13 feet wide.What is the area of the wall?

aksik [14]

Answer:

117 feet squared

Step-by-step explanation:

Multiply the height (9 feet) by the width (13 feet).

9 x 13 = 117

117 feet squared

Note: squared is added when describing area (it's used as an exponent in numbers)

6 0

2 years ago