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inna [77]
4 years ago
10

I need help!! on 9 and 10 plzz help

Mathematics
1 answer:
Alexxandr [17]4 years ago
6 0

9.      1/3+(x+20)+(x-10)+40=360           10.   1/2x+1/2x+(x-15)+(x-25)+100=540

          1/3+2x+50=360                                  4x+60=540

          (3/1) 1/3+2x=300(3/1)                           4x/4=480/4

          2x=300                                                X=120

           ————

               2

W=150

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Choose the graph which represents the solution to the inequality:<br> -2x + 5 ≤ 11
masha68 [24]

Answer:

C

Step-by-step explanation:

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-2x </= 6

x =/> -3

4 0
4 years ago
alice reads a book for 1 3/4hours everday she reads an entire book for 6 days how many hours in all were required by her to read
noname [10]
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5 0
4 years ago
Which graph represents the given equation?<br> y<br> =<br> NICO<br> + 4r – 2
guajiro [1.7K]

Equations can be represented on graphs by plotting the corresponding x and y values. The graph of y = \frac{3}{2}x^2 + 4x - 2 is option (B).

Given that:

y = \frac{3}{2}x^2 + 4x - 2

First, we check the y intercept of y = \frac{3}{2}x^2 + 4x - 2

This is when x = 0

So, we have:

y = \frac{3}{2}x^2 + 4x - 2

y = \frac{3}{2} \times 0^2 + 4\times 0 - 2

y = - 2

This point is represented as: (0,-2)

Next, check the equation when x = 1

So, we have:

y = \frac{3}{2}x^2 + 4x - 2

y = \frac{3}{2} \times 1^2 + 4\times 1 - 2

y = 3.5

This point is represented as: (1,3.5)

From the list of given options (see attachment).

Only graph B has the (0,-2) and (1,3.5) on its curve.

Hence, option (B) is correct.

Read more about equation of graphs at:

brainly.com/question/1971145

8 0
3 years ago
Can anyone help i will give brainlist!! also you have to solve the equations using elimination
Vera_Pavlovna [14]

Step-by-step explanation:

5x+2y=29

5x-2y=41

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x=7

substitute 7 in the first equation

5(7)+2y=29

simplify

35+2y=29

subtract 35 from both sides

2y=-6

simplify

y=-3 x=7

3x+2y=9

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subtract the equations

-2x=-3

simplify

x=1.5

substitute

3(1.5)+2y=9

simplify

4.5+2y=9

subtract 4.5 from both sides

2y=4.5

simplify

y=2.25 x=1.5

5x+2y=-9

2x-3y=4

multiply first equation by three and second by two

15x+6y=-27

4x-6y=8

add equations

19x=-19

simplify

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substitute

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5 0
3 years ago
Please help me with this math question!
nlexa [21]
If the temperature drops 35 degrees everyday for 7 days, you would have to add -35 + -35 + -35 +-35 + -35 + -35 + -35, since each day it drops the temperature would be -35, now the answer would be -245.

Hopefully this helped. :)
8 0
4 years ago
Read 2 more answers
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