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2 years ago

Lucy saved $50 by buying a chair that was on sale for 25% off the regular

Mathematics

2 answers:

Contact [7]2 years ago

5 0

Answer: $200

Step-by-step explanation: 25% = 1/4. 50 x 4 = 200

neonofarm [45]2 years ago

4 0

Answer:

$200

Step-by-step explanation:

Represent the regular price of the chair by c.

Then 0.25c =$50, and c = $200.

The regular price, c, was $200.

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Showplace Lanes charges

Maslowich

Answer:

2 game, $12

Step-by-step explanation:

Given data

Showplace Lanes charges

$4.50 per game as well as

$3 for shoe rental

Let the number of games be x

let the total charge for x games be y

y= 4.5x+3-----------1

Westgate Bowling charges

$4 per game and $4 for

shoe rental

Let the number of games be x

let the total charge for x games be y

y= 4x+4-----------2

Equate 1 and 2

4.5x+3= 4x+4

collect like terms

4.5x-4x= 4-3

0.5x= 1

divide both sides by 0.5

x= 1/0.5

x= 2 games

put x= 2 in equation 1 or 2

y= 4x+4-----------2

y= 4*2+4

y= 8+4

y= $12

3 0

2 years ago

Select the correct answer from each drop-down menu

hram777 [196]

Answer:

Step-by-step explanation:

uv =5

wv=6

wu = (5²+6²)½

wu = 7.8 approximate 8

perimeter = 6+5+8 = 19

6 0

2 years ago

Factor this equation<br> 4x^2+12x-7

Levart [38]

$4x^2+12x-7=0\\\\a=4;\ b=12;\ c=-7\\\Delta=b^2-4ac\\\\\Delta=12^2-4\cdot4\cdot(-7)=144+112=256 \ \textgreater \ 0\\\\therefore\\x_1=\dfrac{-b-\sqrt\Delta}{2a}\ and\ x_2=\dfrac{-b+\sqrt\Delta}{2a}\\\\\sqrt\Delta=\sqrt{256}=16\\\\x_1=\dfrac{-12-16}{2\cdot4}=\dfrac{-28}{8}=\boxed{-\dfrac{7}{2}}\\\\x_2=\dfrac{-12+16}{2\cdot4}=\dfrac{4}{8}=\boxed{\dfrac{1}{2}}$