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Rainbow [258]
3 years ago
7

HELP ME PLEASE MY LAST DAY TO TURN THIS IN! MARKING BRAINLIEST

Mathematics
1 answer:
Nitella [24]3 years ago
3 0

Answer:

3) x=1\\ y=5

4) x=-2\\ y=6

Step-by-step explanation:

3) For this system of equation you already has one variable in the second equation. Therefore, you only need to solve for y in the second one and substitute its value into the first equation to calculate x:

\left \{ {{7x + 3y= 22} \atop {4y=20}} \right. \\

y=\frac{20}{4} \\ y=5

7x + 3(5)= 22\\ 7x=7\\x=1

4) You must add both equations to cancel the variable y and solve for x. Then, susbstiute the value of this variable into one of the original equations to calculate y:

\left \{ {{-2x+y=10} \atop {4x-y=-14}} \right.

2x=-4\\ x=-2

-2(-2)+y=10\\ y=6


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What is the following quotient? sqrt6+sqrt11/sqrt5+sqrt3​
Gnoma [55]

Answer:

√30-√18+√55-√33/2

Step-by-step explanation:

What is the following quotient? sqrt6+sqrt11/sqrt5+sqrt3​

Given the expression

√6+√11/√5+√3

Rationalize

√6+√11/√5+√3 × √5-√3/√5-√3

= √30-√18+√55-√33/√25-√9

= √30-√18+√55-√33 /5-3

= √30-√18+√55-√33/2

This gives the required quotient

6 0
3 years ago
The sales tax on a $250 computer is $17.50. find the sales tax rate
Vedmedyk [2.9K]
Tax=tax rate times cost of product
tax=17.50
cost of product=250
17.50=rate times 250
divide both sides by 250
17.50/250=rate
0.07=rate
percent means parts out of 100
0.07/1 times 100/100=7/100=7%
7%=rate

answer is 7% tax
3 0
3 years ago
Read 2 more answers
T/3+9=12 what does this mean in algerba
Mekhanik [1.2K]

Answer:

t=9

Step-by-step explanation:

subtract 9 from both sides

t/3=3

t=9

7 0
2 years ago
Question: You can work 40 hours per pay period while attending school earning $12.50 an hour. There are two pay periods per mont
77julia77 [94]

1) Based on the information, the following taxation calculations can be made:

a) Gross Pay per pay period: $500

b) Taxable Income per pay period: $425

c) Since you pay 11% in federal taxes, the Federal tax withholding per pay period is <u>$46.75</u>.

2) The State tax withholding per pay period is <u>$20</u>.

3) The calculation of FICA, Medicare, and the Net Pay per pay period is as follows:

FICA withholding per pay period: $25.50

Medicare withholding per pay period: $6.16

Net Pay per pay period = $326.59

<h3>Data and Calculations:</h3>

Total hours worked per pay period = 40 hours

Rate per hour = $12.50

Pay periods per month = 2

Gross pay per pay period = $500 (40 x $12.50)

<h3>Deductions per pay period:</h3>

Health care = $25

401K deduction = $50

Total deductions per pay period = $75

Taxable income per pay period = $425 ($500 - $75)

Federal taxes = 11%

Federal tax withholding per pay period: $46.75 ($425 x 11%)

Annual taxable income = $10,200 ($425 x 24)

State withholding tax (annual) = $480 {$120 + ($10,200 - $5,000) x 5%}

State withholding tax per pay period = $20 ($480/24)

FICA withholding per pay period: $25.50 ($425 x 6.2%)

Medicare withholding per pay period: $6.16 ($425 x 1.45%)

<h3>Net Pay per pay period:</h3>

Gross Pay $500

Total deductions $75

Taxable income = $425

Federal Withholding = $46.75

State Withholding = $20

]FICA Withholding = $25.50

Medicare Withholding = $6.16

Net Pay per pay period = $326.59

Learn more about computing the net pay at brainly.com/question/15858747

#SPJ1

6 0
1 year ago
TO get a certain shade of green paint, Melissa decides to mix 3 gallons of blue paint with 2 gallons of yellow paint. How much b
Harlamova29_29 [7]
You have a fraction of 3/2. 3/2=1.5
Therefore, she needs 1.5 gallons of blue paint per 1 gallon of yellow paint.
7 0
3 years ago
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