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3 years ago

What is the value of the y-intercept of the line 7x-4y=20? 7/4 5 -5

Mathematics

1 answer:

USPshnik [31]3 years ago

3 0

Answer:

-5

Step-by-step explanation:

Once you get y alone the equation will look like this y=-7/4x-5.

The slope intercept form dictates that y=mx+b, with b being the y-intercept, so -5 is b, therefore the y intercept.

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A store is going out of business. Everything is marked down 40%. How much do you pay now for an item that used to cost $150?

barxatty [35]

Answer : $60

Steps for Solving :

$150/10 (to get 10 parts)
=15

15•4 (to get 40%)
=60

6 0

4 years ago

The Lacrosse booster club is holding a raffle for a fundraiser. They will sell 100 tickets for $5 each and select 4 winners. All

Nadusha1986 [10]

Answer:

<h2>There are 3,921,225 ways to select the winners.</h2>

Step-by-step explanation:

This problem is about combinations with no repetitions, because the same person can't win four times. It's a combinaction because the order of winning doesn't really matter.

Combinations without repetitions are defined as

$C_{n}^{r} =\frac{n!}{r!(n-r)!}$

Where $n=100$ and $r=4$ .

Replacing values, we have

$C_{100}^{4} =\frac{100!}{4!(100-4)!}=\frac{100!}{4! 96!}=\frac{100 \times 99 \times 98 \times 97 \times 96!}{4! \times 96!}= \frac{94,109,400}{24}= 3,921,225$

Therefore, there are 3,921,225 ways to select the winners.

Additionally, as you can imagine, the probability of winning is extremely low, it would be 3,921,225 to 1.

3 0

3 years ago

Find the volume of the cone

Alik [6]

Volume =

1 πr2h

1 ×π×42×7

= 117.28612573402 centimeters^3

3 0

2 years ago

I need help solving this

weeeeeb [17]

i y vino the answer is 60° i hope so

8 0

3 years ago

Solve the compound inequality: 4 < 3x – 1 < 20

Nataliya [291]

Answer:

x = (5/3 , 7)

Step-by-step explanation:

4 0

3 years ago