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Reptile [31]
3 years ago
11

Can someone please help me

Mathematics
1 answer:
notsponge [240]3 years ago
8 0

Answer:

Step 2 has the error because they added the five to -3 and got -8 when they should have gotten 2.

Step-by-step explanation:

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I need help ASAP help me answer questions and then I put a picture up
olya-2409 [2.1K]

Answer:

(-4,9)

Step-by-step explanation:

To solve the system of equations, you want to be able to cancel out one of the variables. In this case, it'd be easiest to cancel out the x variables. To do this, you'll want to multiply everything in the first equation by 2 (2(x-5y=-49)=2x-10y=-98). Then, you can add the two equations together. 2x and -2x will cancel out, so you'll be left with -11y=-99. Next, solve for x by dividing both sides of the equation by -11, which will give you y=9. This is your y-coordinate! At this point, you're halfway to the answer as you just need your x-coordinate. It's not too difficult to find the x-coordinate, since you just substitute 9 into one of the equations. It doesn't matter which one you choose as you should get the same answer with both. I usually substitute the y-value into both equations, though, just to make sure I'm correct. Once you put the y-value into the equations, you should get x=-4 after solving it. :)

5 0
3 years ago
Homer is giving some cookies to each of
Stells [14]

Answer:

7 cookies

Step-by-step explanation:

We have 3 brothers

First , Second, Third

Let the total number cookies be represented by A

1 cookie = 1

Working backwards, we start from the third brother

If we work backwards

It means he gave everything away

We start from the youngest

He was given 1/2 of what was left and 1/2 a cookie

This means,

1/2 + 1/2 = 1

The second brother

He got half of what is left and 1/2 a cookies

Half of what is left from brother

= What the youngest brother got + 1/2 + 1/2 a cookie

= 1 + 1/2 + 1/2

= 1.5 + 1/2

= 2 cookies

For the first brother

He got 1/2 of the cookies + 1/2 cookie

= 1.5 × 2 + 1/2 + 1/2 cookies

= 3 1/2 + 1/2

= 4 cookies

The first brother got 4 cookies

The second brother got 2 cookies

The third broth got 1 cookies

3 0
3 years ago
Find the missing side of the right triangle
vlada-n [284]

Answer:

a {}^{2}  + b {}^{2}  = c {}^{2}  \\ b {}^{2} =  \sqrt{c {}^{2}   -  a {}^{2} }  \\ b =  \sqrt{14 {}^{2}   - 3 {}^{2}  }  \\ b =  \sqrt{196 -  9}  \\ b =  \sqrt{187}  \\ b = 13.7

I hope this help

6 0
3 years ago
Select all expressions equivalent to 9(2x - 5)
Paraphin [41]
18x - 45 and 3(6x - 15)
5 0
3 years ago
Which sequence of transformations will verify that quadrilateral WTUV and quadrilateral W'T'U'V' are congruent? A) WTUV is moved
andrew-mc [135]

Answer:

A) WTUV is moved onto W'T'U'V' after translating −15 units vertically, and then rotating 180° counterclockwise around the origin.

Step-by-step explanation:

WTUV is moved onto W'T'U'V' after translating −15 units vertically, and then rotating 180° counterclockwise around the origin.

6 0
3 years ago
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