The Original Price of a video game is $35 with a discount of 25%. What is the sales price?

Is this answer right?? If not please help.

pickupchik [31]

I think your are right

8 0

2 years ago

Greg studied for 12 minutes. This is 40% of the time he wants to study today. How many more minutes does Greg need to study toda

dolphi86 [110]

Answer:

18 More Minutes

Step-by-step explanation:

Hi,

I think I can help.

What I would first do here is try to find the value of 10% relative to the 12 minutes. If we find what 10% is we can multiply that to get 100% to find the total amount of minutes he wants to study. We can then subtract the time already studied to find our answer.

To do this we want to take the 40% we have and find 10. We can do 40/4 to find this since 40 divided by 4 is actually 10.

But if we do this we also have to do with to the number it is relating to / representing. Which is 12. (12 minutes = 40%)

So we can do :

40 / 4

=

10%

Also

12 / 4

=

3

So with this we can conclude that 10% of his total time is 3 minutes.

Now lets multiply this by 10 to get the 100% we are looking for so we can get the total amount of time he spent studying.

So :

10% x 10

=

100%

3 x 10

=

30 minutes

So his total time is 30 minutes of studying, but we have to find how many more minutes after his 12.

We can now simply take the total time and take off the time spent already to find this answer :

30 - 12

=

18 minutes

That is your answer, he needs to study 18 more minutes.

I hope this helps!

If you have any questions or concerns please comment or message me! :)

7 0

2 years ago

Ashley has $9.05 in dimes and nickels. If she has a total of 108 coins, how many of each type does she have?

klemol [59]

Answer:

$73\:\mathrm{dimes},\\35\:\mathrm{nickels}$

Step-by-step explanation:

We can write the following system of equations:

$\begin{cases}10d+5n=905,\\d+n=108,\\\end{cases}$ , where $d$ is the number of dimes she has and $n$ is the number of nickels she has.

Multiply the second equation by $-5$ and add both equations to solve for $d$ :

$\begin{cases}10d+5n=905,\\-5d-5n=-540,\\\end{cases}\\5d=365,\\d=\fbox{$73$}$ .

Plug $d=73$ into any equation to solve for $n$ :

$73+n=108, \\n=\fbox{$35$}$

6 0

2 years ago

A random variable x x has a Normal distribution with an unknown mean and a standard deviation of 12. Suppose that we take a rand

Paul [167]

Answer:

95% Confidence Interval: (94.08,101.92)

Step-by-step explanation:

We are given the following in the question:

Sample mean, $\bar{x}$ = 98

Sample size, n = 36

Alpha, α = 0.05

Population standard deviation, σ = 12

95% Confidence Interval:

Formula:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$98 \pm 1.96(\dfrac{12}{\sqrt{36}} ) = 98 \pm 3.92 = (94.08,101.92)$

8 0

3 years ago

A park has a 333 meter (\text{m})(m)left parenthesis, start text, m, end text, right parenthesis tall tether ball pole and a 6.8

dybincka [34]

Answer:option B & D are correct

Step-by-step explanation:

Given options are

A B C D E

Tether ball pole shadow 1.35 1.8 3.75 0.6 2

Flagpole shadow 3.4 4.08 8.35 1.36 4.8

Ratio of corresponding height & shadows should be same

3 meter tall tether ball pole and a 6.8 tall flagpole

=> Ratio = 6.8/3 = 68/30 = 34/15

A - 3.4/1.35 = 340/135 ≠ 34/15( 306/135)

B - 4.08/1.8 = 408/180 = 34/15 = 34/15 ( Correct option)

C 8.35/3.75 = 835/375 = 167/75 ≠ 34/15( 170/75)

D 1.36/0.6 = 136/60 = 34/15 = 34/15 ( Correct option)

E 4.8/2 = 48/20 = 12/5 = 36/15 ≠ 34/15

option B & D are correct

6 0

3 years ago

Read 2 more answers