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liberstina [14]
2 years ago
6

Can somebody please help me i need this urgently.

Mathematics
1 answer:
sukhopar [10]2 years ago
6 0

Answer:

multiple choice is worth 2

short response is worth 4

Step-by-step explanation:

23x + 10y = 86

28x + 5y = 76

solve by elimination

multiply the top by -1 and the bottom by 2

-23x + -10y = -86

56x + 10y = 152

add them

33x = 66

x = 2

with x = 2 plug x into one of the equations

23x + 10y = 86

23(2) + 10y = 86

46 + 10y = 86

10y = 40

y = 4

x = 2 and y = 4 so

multiple choice is worth 2

short response is worth 4

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simons monthly take home pay is 2300. if he pays 21% of his gross pay in taxes, what is his gross pay
Mazyrski [523]

Grosspay = 2,300 + .21 * gross pay

.79 * Gross Pay = 2,300

Gross Pay = 2,911.39

********************************************

Double-Check 2,911.39 * .21 = 611.39

2,911.39 - 611.39 = 2,300.00

Correct !!!


7 0
4 years ago
What is the product of 9 3/7 x 10/3 =
erica [24]

Answer: 31 3/7

Step-by-step explanation: Simply just multiply 66 by 10 = 660 and then divide 660 by 21 and you get 31 3/7!

4 0
2 years ago
Read 2 more answers
What is 2(n-1)+4n=2(3n-1)
Xelga [282]

Answer:

Infinite solutions

Step-by-step explanation:

<em><u>Distribute the 2 to (n - 1), and distribute the 2 to (3n - 1), like so:</u></em>

2(n - 1) + 4n = 2(3n - 1)

2n - 2 + 4n = 6n - 2

<em><u>Add like terms (2n and 4n):</u></em>

6n - 2 = 6n - 2

<em><u>Subtract 6n from both sides:</u></em>

-2 = -2

Since we ended up with the same term on both sides, we can't do anything else, meaning this equation has infinite solutions.

4 0
3 years ago
Please help with this question
larisa [96]

Answer:

c=17 ft

Step-by-step explanation:

Base=b=8 ft

Hyp=c=?

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Applying Pythagoras theorem

c=\sqrt{a^{2} + b^{2} }

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3 years ago
What is the estimate of 15 ÷ 485
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