2 years ago

How many options are there for picking 5 students out of 30 to wash my car

Mathematics

1 answer:

kirza4 [7]2 years ago

3 0

Answer:

120

Step-by-step explanation:

5 factorial

5 x 4 x 3 x 2 x 1 = 120

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Find the balance in an account at the end of 8 years if $6000 is invested at an interest rate of 4.2% that is compounded continu

tester [92]

Answer:

$8016.00

Step-by-step explanation:

I = 6000 × 0.042 × 8 = 2016

I = $ 2,016.00

$2,016.00 + $6,000.00 = 8,016.00

7 0

2 years ago

I need help I don’t get this

AlexFokin [52]

Answer:

-3

Step-by-step explanation:

-2(2x+5)-x=5(x+1) +15

distribute

-4x-10-x=5x+5+15

add common terms

-5x-10=5x+20

move common terms to the same sides

-30=10x

divide

x=-3

3 0

3 years ago

Read 2 more answers

If a: b= 3:4 then find the value of<br>(6a-3b :(5a + 2b)

KengaRu [80]

Answer:

6 : 23

Step-by-step explanation:

$a : b = 3 : 4 ....(given)\\ \\ let \: a = 3x \\ b = 4x \\ \\ (6a - 3b) : (5a + 2b) \\ \\ = \frac{(6a - 3b)}{(5a + 2b)} \\ \\ = \frac{6(3x) - 3(4x)}{5(3x) + 2(4x)} \\ \\ = \frac{18x- 12x}{15x+ 8x} \\ \\ = \frac{6x}{23x} \\ \\ = \frac{6}{23} \\ \\ (6a - 3b) : (5a + 2b) = 6 : 23$

7 0

2 years ago

Jar contains 8 green, 4 blue, 10 red, and 2 yellow skittles. A skittle is randomly drawn replaced then another is drawn. Find ea

Brrunno [24]

Answer:

green= 33.33%

blue= 16.7%

red=41.6%

yellow=8.33%

Step-by-step explanation:

Total 24 skittles

Divide them

green

8/24

blue

4/24

red

10/24

yellow

2/24

7 0

3 years ago

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K'Drien has a recipe that needs 3/4 tablespoon of butter for every 2

Orlov [11]

Answer:

6/4. Simplified, is 1 2/4

Step-by-step explanation:

4 0

2 years ago