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Darya [45]
3 years ago
12

I need help with number 8 and number 10 !! Please anyone ?!?

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
4 0

Answer:

8. x=          y=

    -1           -2

    0           1

     1           4

     4          13

10. x=              y=

     -10             -4

      0              2

       5             5

Step-by-step explanation:

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(8)+-(6)+-9<br><img src="https://tex.z-dn.net/?f=%285%29%20-%20%287%29%20%2B%20%289%29%20%2B%208%20-%204" id="TexFormula1" title
andrey2020 [161]
To solve both of these expressions, we want to add or subtract from left to right.

For the first one, we can rewrite it as:

8-6-9
=2-9
=-7

The second one we can rewrite as:

5-7+9+8-4
=-2+9+8-4
=7+8-4
=15-4
=11
5 0
3 years ago
Write an equation perpendicular to 4x + 8y = 3 and contain the point (5,7) in slope-intercept form
dimaraw [331]

Answer:

y=2x-3

Step-by-step explanation:  

The slope-intercept form of the original equation would be y=3/8−x/2

Therefore, the slope of the perpendicular line would be m=2

Then, the y-intercept would be 7=(2)x(5)+a

A=-3

Answer:

y=2x+3

6 0
3 years ago
Alex wrote checks on Tuesday for $30 and $40. He also made a deposit in his
Ksivusya [100]

Alex finally had $(x+110) amount of money in his account i.e. He had $100 more then before!

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

Alex wrote checks on Tuesday for $30 and $40. He also made a deposit in his checking account of $180. Let's solve it step by step :

<u>Alex wrote checks on Tuesday for $30 and $40:</u>

Let's suppose Alex initially had x amount of money out of which $30 & $40 is deducted! so left amount of money is $(x-70) .

<u>He also made a deposit in his checking account of $180:</u>

Out of left money $(x-70) , Alex deposited $180 in account so new money = $(x-70) + $180 = $(x+110)

Therefore, Alex finally had $(x+110) amount of money in his account i.e. He had $100 more then before!

6 0
3 years ago
What’s the value for 2.3 + 4.09 =n
Rashid [163]
Answer:

n = 6.39

Explanation:

2.3 + 4.09 = n
6.39 = n

Swap the sides of the equation
n = 6.39
6 0
2 years ago
Someone help me with this please ASAP thank you
Blizzard [7]

Answer: B. 20

Step-by-step explanation: 1/5 of 25 is 5 and 5 of those are red so 25-5=20

6 0
3 years ago
Read 2 more answers
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