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3 years ago

Daniel worked for 2 1/3 hours and earned $28.20. How much would he make if he worked 5 1/4 hours?

Mathematics

1 answer:

OleMash [197]3 years ago

6 0

Answer:

RMT general chairman John Lewis has a long

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50 POINTS! WILL MARK BRAINLEST! NEED IN 10 - 15 MINUTES!

masha68 [24]

Answer:

(2,14)

14/2=7

14+7=21

21 is final answer

Erika had a 95% chance of guessing wrong

20 can be seen as 100%

the % will go down by 5's because of the original number

.5*20=

This will give you a 95% success rate.

7 0

3 years ago

What is the answer for the equation 4|x+1/3|=20 ?

Llana [10]

I hope this helps you...

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3 years ago

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Savannah bought a book for 85% of the original price. By what percent of the price was the book reduced

agasfer [191]

Answer:

15%

Step-by-step explanation:

100-85=15

100%= the total cost of the book

85%= price she bought it for

15%= the percentage the book was reduced by

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3 years ago

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Diego is solving the equation x^2-12x = 21

uysha [10]

Answer:

The solutions to the quadratic equations will be:

$x=\sqrt{57}+6,\:x=-\sqrt{57}+6$

Step-by-step explanation:

Given the expression

$x^2-12x\:=\:21$

Let us solve the equation by completing the square

$x^2-12x\:=\:21$

Add (-6)² to both sides

$x^2-12x+\left(-6\right)^2=21+\left(-6\right)^2$

simplify

$x^2-12x+\left(-6\right)^2=57$

Apply perfect square formula: (a-b)² = a²-2ab+b²

i.e.

$x^2-12x+\left(-6\right)^2=\left(x-6\right)^2$

so the expression becomes

$\left(x-6\right)^2=57$

$\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}$

solve

$x-6=\sqrt{57}$

add 6 to both sides

$x-6+6=\sqrt{57}+6$

Simplify

$x=\sqrt{57}+6$

also solving

$x-6=-\sqrt{57}$

add 6 to both sides

$x-6+6=-\sqrt{57}+6$

Simplify

$x=-\sqrt{57}+6$

Therefore, the solutions to the quadratic equation will be:

$x=\sqrt{57}+6,\:x=-\sqrt{57}+6$

5 0

3 years ago

What percent of 68 is 41?

EastWind [94]

It will be 165.85365853658536. Hope this helps !!

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3 years ago

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