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ad-work [718]
4 years ago
7

I cant understand this.

Mathematics
1 answer:
djverab [1.8K]4 years ago
7 0
Multiply the top one by 3 for x, so you can eliminate x and find y

then plug in the y into one of the equations to find x
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It costs $2.00 for an ice cream cone plus $0.25 for each extra topping. If Cost = the total cost, and T equals the number of top
rusak2 [61]
Cost= 2+0.25T is the equation because 2 dollars is the base amount and then you add the cost of the toppings (T)
6 0
3 years ago
A regular heptagon is shown below. What is the value of x?
Margaret [11]

Answer:

108+x=180

X=180-108

X=72

7 0
3 years ago
Which expression uses numbers and symbols to represent the statement “subtract 6 from 11, double the difference, and then add th
Xelga [282]

Answer: 2(11-6) + 3/4

Step-by-step explanation:

2(11-6) + 3/4

8 0
3 years ago
A hand of 5-card draw poker is a simple random sample from the standard deck of 52 cards. How many 5 draw poker hands are there?
kupik [55]

Answer:

There are 2,598,960 5 draw poker hands are there.

There are 311,875,200 5-stud poker hands.

Step-by-step explanation:

When the order is not important, we use the combinations formula:

For example, eating an apple and an orange is the same as eating an orange and an apple.

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

When the order is important, we use the permutations formula:

For example, a 3 digit credit card password, 123 is different than 213.

The number of possible permutations of x elements from a set of n elements is given by the following formula:

P_{(n,x)} = \frac{n!}{(n-x)!)}

A hand of 5-card draw poker is a simple random sample from the standard deck of 52 cards. How many 5 draw poker hands are there?

Here, the ordering is not important, so we use the combinations formula.

C_{52,5} = \frac{52!}{5!47!} = 2598960

There are 2,598,960 5 draw poker hands are there.

In 5-card stud poker, the cards are dealt sequentially and the order of appearance is important. How many 5-stud poker hands are there?

The ordering is important, so we use the combinations formula.

P_{(52,5} = \frac{52!}{47!)} = 311875200

There are 311,875,200 5-stud poker hands.

7 0
4 years ago
How many miles will paez family drive each day if they decide to take 5 days to drive 865 mi to Dallas
astra-53 [7]
It will take Paez's family 4,305 miles to drive in five days
5 0
3 years ago
Read 2 more answers
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