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3 years ago

How old am I if 400 reduced by 2 times my age is 244 now PLEASE HELP!!!! 12 points!!

Mathematics

2 answers:

Volgvan3 years ago

8 0

X= your age 400-2x=244 -2x=-156 x=78 you are 78 years old

lubasha [3.4K]3 years ago

3 0

400-2x=244 -2x=244-400 -2x=-156 -x=-156/2 -x=-78 x=78

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Add and simplify the result, if possible. x/18 + 3/18

Slav-nsk [51]

$\frac{x}{18}$ and $\frac{3}{18}$ both have a common denominator, so you can combine them into a single fraction:

$\frac{x}{18}+\frac{3}{18}=\frac{x+3}{18}$

You cannot simplify this fraction further:

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Answer:

$\boxed{\frac{x+3}{18}}$

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3 years ago

Write the standard form of the line that passes through the given points. Include your work in your final answer. Type your answ

Nata [24]

Answer: $5x-3y=44$

Step-by-step explanation:

We know that , the equation of a line that passes through (a,b) and (c,d) is given by :_

$(y-b)=\dfrac{d-b}{c-a}(x-a)$

Standard form of equation of line = $Ax+By=C$

Given points = (7, -3) and (4, -8)

Then, the equation of a line that passes through the points . (7, -3) and (4, -8) is given by -

$(y-(-3))=\dfrac{-8-(-3)}{4-7}(x-7)$

$(y+3)=\dfrac{-8+3}{-3}(x-7)$ [∵ (-)(-)=(+)]

$(y+3)=\dfrac{-5}{-3}(x-7)$

$(y+3)=\dfrac{5}{3}(x-7)$

$3(y+3)=5(x-7)$

$3y+9=5x-35$

$9+35=5x-3y$

$44=5x-3y$

Or $5x-3y=44$

Hence, the required equation :- $5x-3y=44$

4 0

3 years ago

Evaluate the expression below when x = 9 and y = 12. <br> 4(x + 6) - 3(y + 4)

Viefleur [7K]

The answer would be 12

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3 years ago

Help me on question. 5

Volgvan

Because he was wrong

8 0

3 years ago

Read 2 more answers

The maximum amount you can spend for renting a motor scooter is $50. The rental fee is $12 and the cost per hour is $9.50. Solve

uranmaximum [27]

The maximum number of hours for which you can rent the scooter is: 4 hours

<h3>Cost of renting;</h3>

According to the question;

The maximum amount you can spend for renting a motor scooter is $50
The rental fee is $12 and the cost per hour is $9.50.

The inequality to determine the maximum number of hours you can rent the scooter is;

$12 + $9.50h <= $50

Solving the inequality, we have;

$9.50h <= $38

h <= 4hours.