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3 years ago

A television regularly selling for $500 is marked down to $300.

1 answer:

3 0

He saves $200 (the amount of change over the original amount $500

200/500 = 2/5 and 2/5 = 40% (divide 2 by 5 and get .4 which = 40%)

40% discount is the answer to your question

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If one serving is 1/6 of a tray of lasagna, how many servings are in three trays of lasagna?

lbvjy [14]

Answer:

18 servings

Step-by-step explanation:

$\dfrac{3}{(\frac{1}{6})}= \\\\3\times \left(\frac{6}{1}\right)= \\\\3\times 6= \\\\18$

Hope this helps!

4 0

3 years ago

Solve using the quadratic equation -4x² + 7x + 5 = 0

Luda [366]

Answer:

x=-0.544727

x=2.294727

Step-by-step explanation:

Given quadratic equation to solve:

-4x²+7x+5=0

To solve, use the quadratic formula

x= -b ± b² - 4ac / 2a

Substitute your values for a, b, & c and solve

x= -7 ± 7² - 4·(-4)·5 / 2·(-4)

x= -7 ± 49 - -80/-8

x= -7 ± 129/-8

Then, reduce the problem

x= -7/-8 ± 129/-8

x=-0.544727

x=2.294727

4 0

1 year ago

PLEASE HELP , REWARD WILL BE GIVEN

torisob [31]

Total 60 vaccinations that consisted of 184 doses.

5 0

3 years ago

Write the point- slope form of the equation of the line through the given point with the given slope

pashok25 [27]

Answer:

y=mx+b

y=-1x-4

y=2x+4

Step-by-step explanation:

8 0

3 years ago

QUADRATIC FORMULA SIMPLIFIED PLZ HELP

olga2289 [7]

Answer:

3x² + 5x + 1 = 0 simplified

x = (-5 ± $\sqrt{13}$ )/6 roots

Step-by-step explanation:

Given quadratic formula

3x² + 5x - 5 = - 6

Standard form

ax² + bx + c = 0

Simplifying

3x² + 5x - 5 + 6 = 0
3x² + 5x + 1 = 0

Solving

x = (-5 ± $\sqrt{5^2 -4*3*1}$ )/(2*3)
x = (-5 ± $\sqrt{13}$ )/6

6 0

2 years ago