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3 years ago

Percents

Mathematics

2 answers:

vredina [299]3 years ago

8 0

Answer:

Step-by-step explanation:

55$ x 40% (rewritten) 55 x .4 = 22

since its 40% OFF you take 55 - 22 = 33

Then take the 33$ x 6% (rewritten)

33 x .06 = 1.98

Then take 33 and add the 6% sales tax

33 + 1.98 = 34.98

Klio2033 [76]3 years ago

3 0

It should be A if i am correct

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If g(x) = 1 - ¾ x find: -5g(4) - 1

cricket20 [7]

Answer:

-5g(4) - 1 is 9

Step-by-step explanation:

$g(x) = 1 - \frac{3}{4} x$

when x is 4:

$g(4) = 1 - \frac{3}{4} \times 4 \\ = 1 - 3 \\ = - 2$

therefore:

$- 5g(4) - 1 = - 5( - 2) - 1 \\ = 10 - 1 \\ = 9$

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3 years ago

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Sally has decided to spend some time over two days soving math problems. She figures that on the first day she wil be able to so

erastova [34]

A system of equations for this would be

19x + 11y = 273

and

12x + 17y = 283.

X is the amount of minutes to solve one long division problem and y is the amount of minutes to solve a graphing problem.

How To Solve This System of Equations.

Multiply both by 17 and 11 respectively for them to have the greatest common factor for y. So now both equations are:

323x + 187y= 4641

132x + 187y= 3113.

Subtract both equations and you have left:

191x = 1528.

Divide both sides by 191 and you find x.

X = 8.

Answer

It takes Sally 8 minutes to do one Long Division Problem.

Hope this helped. ;)

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3 years ago

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Desiree writes songs for her band her first song is 3 1/2 minutes long her second song is one 1/2 times as long as her first son

vesna_86 [32]

Answer:Number of minutes of second Song = 5 1/4 minutes

Number of minutes of third Song =3 1/2 minutes

Step-by-step explanation:

Number of minutes of First Song = 3 1/2 minutes

Number of minutes of second Song = one 1/2 times as long as her first

= 1 1/2 X 3 1/2 minutes

3/2 X 7/2

21/4 = 5 1/4 minutes

Number of minutes of third Song = 2/3 times as long as her second song

2/ 3 x 5 1/4

= 2/3 x 21/4 =42/12

Dividing the numerator and denominator by 3 to reduce the fraction

42/ 12 / 3/3 = 14/4

14/4 = 3 2/4 = 3 1/2 minutes

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3 years ago

the formula d= rt gives the distance traveled in time t at rate r. if a bicyclist rides for 2.3 hours and travels 41 miles, what

jenyasd209 [6]

(41 miles)/(2.3 hours) = 17.83 miles per hour.

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3 years ago

What number makes this equation true? 7 x ? = 8 3/4

kotegsom [21]

This is true when x is 5/4

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3 years ago

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