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3 years ago

What is the answer to 1/4y=7

Mathematics

1 answer:

Alborosie3 years ago

8 0

Answer:

1.75

Step-by-step explanation:

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For the equation 2x^3 -11x^2 + 12x + 9 = 0 , the root of 3 has a multiplicity of

Kobotan [32]

Answer: 2

Reason:

2x^3 - 11x^2 + 12x + 9

= 2x^2(x-3) - 5x(x-3) -3(x-3)

= (x-3)(2x^2 - 5x - 3)

= (x-3)^2 (2x + 1)

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3 years ago

Mr. Sanchez’s class sold fruit pies for $1.32 each and Mr. Kelly’s class sold bottles of fruit juice for $1.77 each. Together, t

aleksklad [387]

Answer:

Part a)

The quantity of fruit pies sold was $42$

The quantity of juice bottles sold was $48$

Part b) Mr. Kelly’s class earned more money

part c) $\$29.52$

Step-by-step explanation:

Part a)

Let

x-----> quantity of fruit pies sold

y----> quantity of juice bottles sold

we know that

$x+y=90$

$x=90-y$ -----> equation A

$1.32x+1.77y=140.40$ ----> equation B

substitute equation A in equation B

$1.32(90-y)+1.77y=140.40$

$118.8-1.32y+1.77y=140.40$

$0.45y=140.40-118.8$

$0.45y=21.6$

$y=48$ bottles of fruit juice

Find the value of x

$x=90-y$ ------> $x=90-48=42$ fruit pies

Part b) Which class earned more money?

Mr. Sanchez’s class

$\$1.32x=1.32*42=\$55.44$

Mr. Kelly’s class

$\$1.77y=1.77*48=\$84.96$

therefore

Mr. Kelly’s class earned more money

Part c) How much more money did that class earn?

Find the difference

$\$84.96-\$55.44=\$29.52$

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Tanya is training a turtle for a turtle race. For every of an hour that the turtle is crawling, he can travel of a mile. At what

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Forty four out of 72 is

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Forty four out of 72 is = 44 / 72

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22 / 36 2 into 22 is 11 and 2 into 36 is 18

11 / 18

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An element with a mass of 970 g decays by 15.1% per minute how much of the element remaining after 14 minutes

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