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lubasha [3.4K]
3 years ago
6

If you toss 3 coins 10,000 times, how many times would you expect that exactly 2 heads appear? 3 10,000 3,750 2,500

Mathematics
1 answer:
Simora [160]3 years ago
4 0
The table below shows the outcome of tossing 3 coins

The probability of getting two heads is 3/8

If the three coins tossed 10000 times, the probability of exactly two heads appear is = (3/8) × 10000 = 3750 times

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David makes a pizza with 8 slices of equal size. He covers 5 of the 8 with pepperoni. what percent of the pizza is covered with
gayaneshka [121]

Answer:

D

Step-by-step explanation:

5 ÷ 8 = 0.625 = 62.5%

4 0
3 years ago
Given g(x) = -X – 1, solve for x when g(x) = 3.
Vika [28.1K]

Answer:

-4 = x

Step-by-step explanation:

g(x) = -X – 1

g(x) = 3

3 = -x-1

Add 1 to each side

3+1 = -x-1+1

4 = -x

Multiply by -1

-4 = x

8 0
3 years ago
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How much money is a 20% down payment on a $23,900 car?
vlada-n [284]

Answer:

$4,780

Step-by-step explanation:

20% x 23,900= 4,780

5 0
3 years ago
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Landon owns a hybrid SUV that can travel 400 miles on a 15-gallon tank of gas. Determine how many miles he can travel on 6 gallo
ss7ja [257]
There are few ways to count it. One of them is:

400 miles on 15-gallon tank
400 / 15 = 26,66666666666667 miles per 1 gallon (looks weirdly but we'll get a nice result in a second)
So 26,66666666666667 * 6 gallons = 160 miles

Answer: Landon's SUV can travel 160 miles on 6 gallons.
7 0
3 years ago
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A new school has x day students and y boarding students.
guapka [62]

Given:

The fees for a day student are $600 a term.

The fees for a boarding student are $1200 a term.

The school needs at least $720000 a term.

To show:

That the given information can be written as x + 2y\geq 1200.​

Solution:

Let x be the number of day students and y be the number of boarding students.

The fees for a day student are \$600 a term.

So, the fees for x day students are \$600x a term.

The fees for a boarding student are \$1200 a term.

The fees for y boarding student are \$1200y a term.

Total fees for x day students and y boarding student is:

\text{Total fees}=600x+1200y

The school needs at least $720000 a term. It means, total fees must be greater than or equal to $720000.

600x+1200y\geq 720000

600(x+2y)\geq 720000

Divide both sides by 600.

\dfrac{600(x+2y)}{600}\geq \dfrac{720000}{600}

x+2y\geq 1200

Hence proved.

3 0
3 years ago
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