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3 years ago

What is 50% out of 80 , could you explain how you get to the answer , thank you !

2 answers:

5 0

40. Think about it like this, 50 percent of something is half of it. If you divide 80 by 2 you will get 40! Also you can multiply 80 by the decimal equivalent of 50% which is .5! so 80 * .5 =40!!

g100num [7]3 years ago

3 0

Change percent into decimal which is 0.80 and multiply it by 80 to get 40 which is the answer Also since 50% is half you could just divide 80 by 2

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A chestnut falls out of a tree 45 feet above the ground. Use the vertical motion model, H=-16t^2+vt+s s to find how long it take

valentinak56 [21]

Answer:

1.7 seconds

Step-by-step explanation:

we have

$H=-16t^2+vt+s$

where

v is the initial velocity (in feet per second)

s represents the initial height (in feet)

In this problem we have

$v=0$ ---> because the object is dropped

$s=45\ ft$

substitute

$H=-16t^2+45$

Remember that

When the chestnut hit the ground the value of H is equal to zero

For H=0

$-16t^2+45=0$

solve for t

$16t^2=45\\t^2=2.8125\\t=\pm1.7\ sec$

therefore

The solution is t=1.7 sec

7 0

3 years ago

can someone j help me w this, ive reposted it twice now :-(((( due in an hour please help!:( will give brainliest

Doss [256]

Step-by-step explanation:

I got you,

a) Work...

First equation: y = 4x + 3

Second equation: y = 2x + 11

If he wants to play 2 games...

y = 4 (2) + 3

y = 11

y = 2 (2) + 11

y = 15

<u>Answer for part a: If a customer wants to rent shoes and play two games, they'll pay more with the new price plan. With the current price plan, they'll pay 11 dollars, but with the new price plan, they'll pay 15 dollars.</u>

b) Work...

seven games...

y = 4 (7) + 3

y = 31

y = 2 (7) + 11

y = 25

<u>Answer for part b: If the customer wants to play 7 games, including the shoes, they would pay less using the new plan. If the shes were not included, the new price will still be less. With the shoes, 7 games, with the original plan, is 31 dollars but 25 dollars with the new plan. If they didn't want to rent shoes, they would pay 28 dollars with the original plan but only 14 dollars with the new plan. All in all, they spend less on the new plan anyways.</u>

I hope this helps :)

7 0

3 years ago

Read 2 more answers

Please help!!!

sveticcg [70]

Answer:

I don't know how to do this thing

8 0

3 years ago

Need help............

svp [43]

Answer:

i would say C

Step-by-step explanation:

6 0

3 years ago

Factor: x(3y-5)+3(3y-15)

alina1380 [7]

3xy-5x+9y-45

Step-by-step explanation:

Step by Step Solution

STEP1:STEP2:Pulling out like terms

2.1 Pull out like factors :

3y - 15 = 3 • (y - 5)

Equation at the end of step2: (x • (3y - 5)) + 9 • (y - 5) STEP3:Equation at the end of step 3 x • (3y - 5) + 9 • (y - 5) STEP4:Trying to factor a multi variable polynomial

4.1 Split 3xy-5x+9y-45

into two 2-term polynomials

-5x+3xy and +9y-45

This partition did not result in a factorization. We'll try another one:

3xy-5x and +9y-45

This partition did not result in a factorization. We'll try another one:

3xy+9y and -5x-45

This partition did not result in a factorization. We'll try another one:

3xy-45 and +9y-5x

This partition did not result in a factorization. We'll try another one:

-45+3xy and +9y-5x

This partition did not result in a factorization. We'll try

8 0

1 year ago