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Nat2105 [25]
3 years ago
9

50 PTS+ BRAINLIEST FOR CORRECT ANSWER

Mathematics
2 answers:
Flura [38]3 years ago
8 0

Answer:

jane is 28 and karen is 7

Step-by-step explanation:

j=4k

j-k=21

set the values of j equal to each other

4k=21+k

solve for k, you get 7

four times 7 is 28

Fudgin [204]3 years ago
7 0

Answer:

J = 28 and K = 7

Step-by-step explanation:

J = Jane

K = Karen

J = 4 * K

J - K = 21

4K - K = 21

3K = 21

K = 7

J = 4K

J = 4(7)

J = 28

Hope this helps :)

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Solve the equation 2/3-4x+7/2=-9x+5/6
VMariaS [17]

Answer:

<u>For this equation the value of x is - 2/3</u>

Step-by-step explanation:

1. Resolving the equation 2/3-4x+7/2=-9x+5/6

-4x + 9x = 5/6 - 2/3 - 7/2 (Putting the all the x values on the left)

5x = (5/6 - 4/6 -21/6)

5x = -20/6

x = - 20/6 /5 (Dividing by 5 at both sides)

x = -20/6 * 1/5

<u>x = -4/6 = - 2/3 (Simplifying)</u>

2. Proof of replacing x by -2/3

2/3 - 4 (-2/3) + 7/2 = -9 (-2/3) + 5/6

2/3 + 8/3 + 7/2 = 18/3 + 5/6

10/3 + 7/2 = 6 + 5/6

20 + 21 = 36 + 5 (Multiplying by 6 at both sides)

41 = 41

<u>It means the value of -2/3 for x is correct</u>

Note: Same answer than 13866851

4 0
3 years ago
What is 2+x if x=2? thanks
11Alexandr11 [23.1K]
Reorder 2 and x.
x + 2
4 0
3 years ago
Read 2 more answers
What is the answer to this <br> a. (2, 3)<br> b. (-2, 3)<br> c.(-2, -3)<br> d. (3, -2)
faltersainse [42]
The answer would be b. (-2, 3)
8 0
3 years ago
Given deductions for this week: federal tax $61.34, FICA $52.05, and state $7.92 what is the annual federal tax deduction?
stealth61 [152]

Given the weekly deductions raised, the annual Federal Tax deduction is $ 3,189.68.

Given that the deductions for the week were: Federal Tax $ 61.34, FICA $ 52.05, and State $ 7.92; To determine what is the annual Federal Tax deduction, the following calculation must be performed:

The weekly deduction must be multiplied by the number of weeks that a year has, to obtain the final amount of taxes.

  • $ 61.34 x 52 = X
  • $ 3,189.68 = X

Therefore, the annual Federal Tax deduction is $ 3,189.68.

Learn more in brainly.com/question/25225323

8 0
2 years ago
Help please will mark brainliest
Andrew [12]

Answer:

i thinks its -9

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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