MATHEMATICS HIGH SCHOOL

After John worked at a job for 10 years, his salary doubled. If he started at $x, his salary after 10 years is _____.$x
$x + 2
$x - 2
$2x

Answers

Answer 1
Answer: The expression that would be best fit on the given statement would be 2x. This is because the question says that when John reached 10 years his salary will be doubled. Meaning the x salary will be times to 2, or simply 2x.
Answer 2
Answer: I think its $2x because if a variable is beside a number, it means you multiply.

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3. What is the slope of the table shown? Cars Washed Number Money ($) 5 40 10 80 15 120 20 160​

Answers

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What temperature in Fahrenheit is 50 degree celsius? (Enter numeric value only. If rounding is necessary, round to the nearest whole number.)

Answers

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-6x + 7y = 9
2x - 2y = 4

Answers

7909081131

8709196751

7250401594

9835094365

8340436845

7258061562

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One root of the quadratic equation x^2 − 2x + m = 0 is 9. If the other root is n, what is n−m?

Answers

9^2-2*9+m=0\n \n 81-18+m=0\n \n m=-63

x^(2) -2x-63=0\n \n \Delta=(-2)^2-4.1.(-63)=4+252=256\n \n x=(2 \pm 16)/(2)\n \n x_1=(18)/(2)=9\n \n n=x_2=(-14)/(2)=-7\n \n n-n=-7-(-63)=-7+63=56

Solve for x. -3x + 3b > 5

Answers

Answer: x < -5/3 + b

Hope it helps:)

The sum of two numbers is 35. twice the first number is equal to 5 times the second number. find the two numbers

Answers

label your numbers (I'm picking x and y)
x+y=35
2x=5y
find the relationship between your numbers
x=35-y
apply this to the other equation
2 (35-y)=5y
now simplify to find y
70-2y=5y
70=7y
y=70/7=10
now apply your newly found y to find x
x+10=35
x=25
check your answers
2 (25)=5 (10)
50=50
so our first number x is 25 and our second number y is 10
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