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Elena-2011 [213]
4 years ago
14

Elimination?

0-%202y" id="TexFormula1" title=" - 2y = - 6x + 62 \\ - x = - 22 - 2y" alt=" - 2y = - 6x + 62 \\ - x = - 22 - 2y" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
lorasvet [3.4K]4 years ago
4 0
<h3><u>The value of y is -7.</u></h3><h3><u>The value of x is 8.</u></h3>

First we need to rearrange these equations so they line up properly.

6x - 2y = 62

-x + 2y = -22

Add equations together.

5x = 40

Divide both sides by 5.

x = 8

We can plug this value in to find the value of y.

6(8) - 2y = 62

48 - 2y = 62

Subtract 48 from both sides.

-2y = 14

Divide both sides by -2.

y = -7


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rebecca wants to crochet a scarf that is at least 4.4 feet long. So far, she's completed 2.5 feet. How much more does Rebecca in
vlabodo [156]

Answer:

4.4 < 2.5 +x

She needs to crochet at least 1.9 more ft

Step-by-step explanation:

She wants the scarf to be at least 4.4 ft long

4.4< scarf

The scarf is 2.5 ft long now

She will crochet x more ft

4.4 < 2.5 +x

Subtract 2.5 from each side

4.4 -2.5 < 2.5+x-2.5

1.9 <x

She needs to crochet at least 1.9 more ft

3 0
4 years ago
Find the missing value when given the modulus.
kolbaska11 [484]

Solving the complex number, we get the value of the missing value that is ‘a’ = -6

We  have been given the expression as

          |a – i| = √37          (1)

Which is an expression of complex number. The general expression of complex number is given as

    z = x + iy

 where x is the real part and iy is the imaginary part

To find the modulus value, the formula is given by,

  |z| = |x + iy|

   |z| = √[(real part)2 + (imaginary part)2]

 |z| = √(x2 + y2)

According to the question, |z| = √37         (2)

Equating equation (1) and (2), we get

√(a2 + 1) = √37

(a2 + 1) = 37

a2 = 37 – 1

a2 = 36

a = √36

a = ±6

Now value of a can be 6 or -6. We have been given that the modulus is in third quadrant.

Hence the value will be negative. Therefore, the missing value will be -6.

Learn more about complex number here : brainly.com/question/5564133

#SPJ9

3 0
2 years ago
What is 7.86 x 4.6 with steps
xxMikexx [17]
Just simply multiply then after you multiply you get: 36156

Now since you have 3 decimal places you put the decimal point three times to the left and you get.....

36.156

I hope this helps!
5 0
3 years ago
Any ideas on this one?
melisa1 [442]

Answer:

Step-by-step explanation:

5y  

3(2x+1)= 6x+3  E

12x-13 N

2y-3      D

6x+2     U

It turns out to be endurance

4 0
3 years ago
Read 2 more answers
Help I really need to do this​
coldgirl [10]

I'm so sorry if this is wrong but it might be 24.

4 0
3 years ago
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