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Gemiola [76]
3 years ago
12

-7x + 11 = x- 13 i need help solving lol

Mathematics
2 answers:
krek1111 [17]3 years ago
8 0
-7x + 11 = x - 13
-7x - x = -13 - 11
-8x = - 24
x = -24/-8
x = 3

ivolga24 [154]3 years ago
5 0

3 is your answer to your quistion


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How many radians is 126
dexar [7]

Answer:

.7pi

Step-by-step explanation:

To convert from degrees to radians, multiply by pi/180

126 * pi/180

.7 pi

5 0
2 years ago
Continue the following pattern; describe the eighth figure in this pattern a. 49 small squares forming a larger 8 by 8 square b.
olga2289 [7]

Answer:

l think the answer is B

Step-by-step explanation:

The eighth patern should give the result 81

7 0
3 years ago
3 coffees and 4 donuts cost $10.05. In the same cafeteria, 5 coffees and 7 donuts cost $17.15. How much do you have to pay for 4
MakcuM [25]

Answer

You need to pay $14.20 to get 4 coffees and 6 donuts.

Explanation

Let's say that the price of one coffee and x and the price of one donut is y.

In the first instance, 3x+4y=10.05.

In the second instance, 5x+7y=17.15.

You can use these equations to find the value of a coffee and the value of a donut.

We can find x and y using elimination. To do this, you should add or subtract one equation from another to "get rid" of a variable (I'll "get rid" of x). We can't just add or subtract the equations right now, since that wouldn't lead to 0x.

Multiply the first equation by 5, and the second equation by 3. After this, both equations will have 15x. Make sure to multiply each term by 5 and 3.

15x+20y=50.25. This means that 15 coffees and 20 donuts is $50.25.

15x+21y=51.45. This means that 15 coffees and 21 donuts is 51.45.

Now since there are an equal number of coffees, we can subtract these equations.

(15x+21y=51.45)-(15x+20y=50.25) equals y=1.20 (a donut costs $1.20).

Plug the price of the donut into y to find x; 3x+4(1.20)=10.05. The value of x is 1.75. The price of a coffee is 1.75.

You can multiply 1.75 by 4 to find the price of 4 coffees and 1.20 by 6 to find the price of 6 donuts.

1.75*4 is 7.00 and 1.20*6 is 7.20.

You can add those to find the total price; 7.00+7.20=14.20.

5 0
3 years ago
NEED HELPPPPP LOL XDDDDD OH MY GODDD
DedPeter [7]

Answer:

yo w t f is thisssssss

Step-by-step explanation:

b  c  idek im so cluless rn im in 7th grade XD

8 0
2 years ago
Which is the best estimate of -14 1/9 (-2 9/10)?<br>-42<br>-28<br>28<br>42​
andrew-mc [135]
-42 is the best estimate
5 0
2 years ago
Read 2 more answers
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