3 years ago

To decrease an amount by 85% what single multiplier would i need to use?

1 answer:

7 0

You are asking about what number must you multiply another random number by to make that random number decrease by 85% of that random number, right?

If the above is correct, then the number is 0.15
because 100% - 85% = 15% and 15% = 15 / 100
= 0.15

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Write an equation in standard form of the line passing through the points (12, 3) and (-3, 8).

aliya0001 [1]

Answer:

x + 3y = 21

Step-by-step explanation:

$(x_{1},y_{1})=(12,3) \\\\(x_{2},y_{2})=(-3,8)\\\\Slope= \dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\= \dfrac{8-3}{-3-12}= \dfrac{5}{-15}\\\\= \dfrac{-1}{3}$

Equation of the line: y =mx+ b

$y = \dfrac{-1}{3}x+b\\\\\\Plugin \ x = 12 \ and \ y=3 \ in \ the \ above \ equation\\\\3= \dfrac{-1}{3}*12+b\\\\3= -4+b\\\\3+4 = b\\\\b = 7\\\\\\\y= \dfrac{-1}{3}x+7\\\\$

Multiply the equation by 3

3y = -x + 21

x + 3y = 21

6 0

3 years ago

Gina is making $20 an hour. She receives a 10% raise. If gina works 40 hours a week, how much more money will she make each week

Elden [556K]

Answer:

880

Step-by-step explanation:

20 x 10% = 2

20 + 2 = 22

22 x 40 = 880

6 0

2 years ago

Write an exponential function of the form f(x) = ab* whose graph passes through the

Andrews [41]

Answer:

Step-by-step explanation:

let f(x)=ab^x

when x=1,f(x)=6

6=ab

when x=2,f(x)=18

18=ab^2

divide

$\frac{ab^2}{ab}=\frac{18}{6}\\b=3\\ab=6\\3a=6\\a=2\\f(x)=2(3)^x$

4 0

3 years ago

A microwave is placed on top of two boxes. One box is 4 feet 6 inches tall, the other box is 3 feet 8 inches tall, and the micro

Svetllana [295]

10 feet and 11 inches is the answer.

Hope this helps! :)

8 0

3 years ago

HELP ME ASAP. The answer is -10 but explain it how to do it step by step. -6+(-30) divided by 5-(-2)

Alex777 [14]

Step-by-step explanation:

Following the order of operations we would first divide -30 by 5 which would give us -6

-6 + (-30) ÷ 5 - (-2)

From here we can add -6 + -6 = -12

-6 + (-6) - (-2)

When subtracting a negative number, the two negatives changes it to a positive. (-12) - (-2) = (-12) + 2 which would give us -10

(-12) - (-2) = -10

~Hope this helps!~

4 0

3 years ago