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3 years ago

6

9. Jack is learning to save, spend, and give his money away to charities. He has determined to give 10% of his summer job earnin

gs. If he earns $2,560, how much does he give to charity? Do not include units in your answer. *

1 answer:

Kamila [148]3 years ago

4 0

Answer:

$2560

Step-by-step explanation:

if 10%=256

then 10 times the amount 100% is 2560

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4 students from a class of 15 are going to be chosen to be on the dance committee. Find the number of different 4-person committ

Andrej [43]

We know that
The formula for combinations is
C=n!/[(n-r)!*r!]
where
n is the total number of objects you choose from
r is the number that you choose to arrange

in this problem
n=15 students
r=4 students
C=15!/[(15-4)!*4!]-----> C=15!/[11!*4!]---> (15*14*13*12*11!)/(11!*4*3*2*1)
C=(15*14*13*12)/(24)----->C=1365

the answer is
1365

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3 years ago

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Suppose that a defined population is all left-handers, and a survey is being

Kryger [21]

Answer: A

Step-by-step explanation:Greg

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2 years ago

C= 6x+100 and c=10x+80 <br> what number does x have to be for c to be the same on each equation?

slega [8]

Answer:

x= 5 , for c to be same on each eqn

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2 years ago

The trip took 1 hour and 40 minutes 30% of the time the car traveled on rough roads how much time did the car travel on rough ro

Effectus [21]

Answer:

D

NOTE: 1 HOUR IS 60 MINUTES

do 60+40 gives u the minute which is 100

then 100 x30% = 30

NOTE: for the second round up the digit and multiply it by 65

so 40.4 x 65 gives 62. something

the nearest number is 60 % so 60% is the answer

<em>Please mark as brainliest</em>

Have a great day, be safe and healthy

Thank u

XD

4 0

3 years ago

Read 2 more answers

If a polynomial function f(x) has roots 6 and square root of 5, what must also be a root of f(x)?

ivolga24 [154]

Answer:

- $\sqrt{5}$

Step-by-step explanation:

A root with square root or under root is only obtained when we take the square root of both sides. Remember that when we take a square root, there are two possible answers:

One answer with positive square root
One answer with negative square root

For example, for the equation:

$x^{2}=3$

If we take the square root of both sides, the answers will be:

$x=\sqrt{3} \text{ or } x= -\sqrt{3}$

Only getting one solution with square root is not possible. Solutions with square root always occur in pairs.

For given case, the roots are 6 and $\sqrt{5}$ . Therefore, the 3rd root of the polynomial function f(x) had to be - $\sqrt{5}$

It seems you made error while writing option B, it should be - square root of 5.

4 0

3 years ago