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3 years ago

What number is 95% of 350

2 answers:

4 0

So, we have the unknown value, let's call it "x".
95% is .95 as a decimal.
So, let's find what .95*350 is.
.95*350=332.5
So, the unknown value is 332.5.
332.5 is 95% of 350.

Elodia [21]3 years ago

4 0

332.50 because the formula for percentages is turn the percentage in to a decimal and multiply it by the number its out of

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Annie’s change purse contained 5 quarters 8 dimes and 8 nickels if Annie chose 2 coin randomly without replacing them in her pur

Bogdan [553]

<h3>Answer:</h3>

2/15

<h3>Explanation:</h3>

There are 8C2 = 28 ways to choose 2 dimes from the 8 dimes in Annie's purse. There are 21C2 = 210 ways to choose 2 coins from the 21 coins in Annie's purse.

Of the 210 ways to choose 2 coins, 28 of the choices will result in 2 dimes being chosen. The probability of choosing 2 dimes is 28/210 = 2/15.

_____

<em>Comment on nCk</em>

The number of ways to choose k objects from n, when order does not matter, is ...

... n!/(k!(n -k)!)

For the computations above, we have ...

... 8C2 = 8·7/(2·1) = 28

... 21C2 = 21·20/(2·1) = 210

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3 years ago

A store bought a tent for $230 andmarked it up 65%. The store sells thetent with an 8% tax, what is the totalcost of the tent?

Len [333]

The cost for buying the tent is $230.

65% was increasesd for selling. Then the rate is

$\begin{gathered} 230\times\frac{65}{100}=14.95 \\ So,\text{ the marked price=230+14.95=}244.95 \end{gathered}$

The tax is 8%. So this is from the marked price.

$\begin{gathered} \frac{8}{100}\times244.95=19.56 \\ 244.95-19.56=225.39 \end{gathered}$

Therefore the total cost of the tent is $225.39.

3 0

1 year ago

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Bingel [31]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Sara travels twice as far as Eliot when going to camp. henry travels as far as Sara and Eliot together. Jordan travels time as f

ozzi

Answer:

Eliot = 10 miles

Sara = 20 miles

Henry = 30 miles

Jordan = 60 miles

Completed question;

Sara travels twice as far as Eliot when going to camp. henry travels as far as Sara and Eliot together. Jordan travels 3 times as far as Sara. In total, all four travel 120 miles to camp. How far does each of them travel

Step-by-step explanation:

Let x,y,z,w represent the distance travelled by Eliot, sara, henry and jordan respectively.

In total, all four travel 120 miles to camp;

x+y+z+w = 120 ........1

Sara travels twice as far as Eliot when going to camp;

y = 2x ........2

henry travels as far as Sara and Eliot together;

z = x + y = x + 2x = 3x (Substitute eqn 2)

z = 3x ......3

Jordan travels time as far as Sara;

w = 3y = 3(2x) = 6x

w = 6x ......4

Substituting equation 2,3,4 into 1

x+y+z+w = 120

x + 2x + 3x + 6x = 120

12x = 120

x = 120/12 = 10 miles

From equation 2

y = 2x = 2(10) = 20 miles

From equation 3;

z = 3x = 3(10) = 30 miles

From equation 4;

w = 6x = 6(10) = 60 miles

Therefore;

Eliot = 10 miles

Sara = 20 miles

Henry = 30 miles

Jordan = 60 miles

3 0

3 years ago

URGENT!!!!!Driving times for students' commute to school is normally distributed, with a mean time of 14 minutes and a standard

LuckyWell [14K]

Answer:

B. 68%.

Step-by-step explanation:

We have been given that driving times for students' commute to school is normally distributed, with a mean time of 14 minutes and a standard deviation of 3 minutes.

First of all, we will find z-score of 11 and 17 using z-score formula.

$z=\frac{x-\mu}{\sigma}$