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3 years ago

If 11 oranges cost $2.35, what is the cost of 18

Mathematics

1 answer:

Nastasia [14]3 years ago

6 0

Answer:

$3.8

Step-by-step explanation:

2.35/11=0.2136

0.2136*18=3.8448

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they are serving hot dogs at the end of year party hot dogs are sold in packs of 8 if they want to have one hot dog for each of

Mazyrski [523]

You must buy 8 packs of hot dogs

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3 years ago

Twenty boys signed up for the school play. The number of girls who signed up was 195% of the number of boys. At the auditions, o

Firlakuza [10]

20 boys signed up
# of girls who signed up was 195% of the number of boys who signed up

Find 195% of 20:

1.95 * 20 = 39

So 39 girls signed up.

To find out what percent of girls who signed up for the play attended the auditions, divide 26 to the total number of girls who signed up:

26 / 39 = 0.666666667

Multiply by 100:

0.666666667 * 100 = 66.6666667%

So approximately 66.67% or 66 2/3%

7 0

3 years ago

What is the distance between (-7, -2) and (13,-23)

Zolol [24]

Step-by-step explanation:

here,

x1=-7

x2=13

y1=-2

y2=-23

$\boxed{\blue{ distance=\sqrt{(y2-y1)^2+(x2-x2)^2} }}$ ⠀

<em>=</em> $\tt{\sqrt{(-23-(-2))^2+(13-(-7))^2}}$ ⠀

= $\tt{\sqrt{(-21)^2+(20)^2} }$ ⠀

= $\tt{\sqrt{ 441+400} }$ ⠀

= $\tt{\sqrt{841} }$ ⠀

= $\tt{ 29 }$ ⠀

So,

the distance between (-7, -2) and (13,-23)=29

6 0

3 years ago

A student got 12 out of 15 questions correct on their quiz. What percent of the questions did the student get correct?

Nastasia [14]

Answer:

i think it would be 21 percent he got wrong so if he got 21 percent wrong it would be 79 percent right

Step-by-step explanation:

beacause if it was 10 question it would be 30 percent wrong since its 15 you divide it by 100 which would be 7 and 7 times 3 is 21

sorry if im wrong

7 0

3 years ago

A supplier of heavy construction equipment has found that new customers are normally obtained through customer requests for a sa

ziro4ka [17]

Answer:

The probability that it will take fewer than six customer contacts to clear the inventory is 0.8%.

Step-by-step explanation:

We have a probability of making an individual sale of p=0.15.

We have 4 units, so the probability of clearing the inventory with n clients can be calculated as:

$P=\dbinom{n}{4}p^4q^{n-4}=\dbinom{n}{4}0.15^4\cdot 0.85^{n-4}$

As we see in the equation, n has to be equal or big than 4.

In this problem we have to calculate the probability that less than 6 clients are needed to sell the 4 units.

This probability can be calculated adding the probability from n=4 to n=6:

$P=\sum_{n=4}^6P(n)=\sum_{n=4}^6 \dbinom{n}{4}0.15^4^\cdot 0.85^{n-4}\\\\\\P=0.15^4(\dfrac{4!}{4!0!}\cdot 0.85^{4-4}+\dfrac{5!}{4!1!}\cdot0.85^{5-4}+\dfrac{6!}{4!2!}0.85^{6-4})\\\\\\P=0.15^4(1\cdot0.85^0+5\cdot0.85^1+15\cdot0.85^2)\\\\\\P=0.00051(1+4.25+10.84)\\\\\\P=0.00051\cdot16.09\\\\\\P=0.008$

5 0

3 years ago