3 years ago

Find the value of the combination. 5C5 A:1 B:5 C:0

Mathematics

1 answer:

Olenka [21]3 years ago

6 0

Answer:

A:1

Step by step explanations:

C(n,r)=C(5,5)

n=5

r=5

=n! / (r!(n-r)!)

=5! / (5!(5-5)!)

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Solve for x.

OLga [1]

305 11/45

Step by step explanation

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2 years ago

Butch washes half of his kitchen floor in 1/4 hour. His kitchen floor is 120 square feet. What is an equivalent unit rate?

PtichkaEL [24]

D
He washes 60 sq ft in 1/4 of an hour. Multiply 60 by 4 and you get 240 per hour

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2 years ago

I'm having trouble with this -9x + 4y = 55 -11x + 7y = 82

lubasha [3.4K]

Answer:

Step-by-step explanation:

99x - 44y = -605

-99x + 63y = 738

19y = 133

y = 7

-9x + 28 = 55

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7 0

3 years ago

Read 2 more answers

Divide 240g in the ratio 5:3:4

Hoochie [10]

Answer:

100g : 60g : 80g

Step-by-step explanation:

5+3+4 =12 total parts

(5/12 of 240)

5/12 x 240 = 100g

3/12 x 240 = 60g

4/12 x 240 = 80g

Check:

100g + 60g + 80g = 240g

Hope this helps!

6 0

2 years ago

After a car is purchased, the value of a new car decreases $4000 each year. After 3 years, the car is worth $18000.

Over [174]

Original - 4000x

so, after 3 years we have: 

Original - 12000 = 18000 

=> Original = $30,000

6 0

3 years ago