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Genrish500 [490]
3 years ago
9

HELPPPP, giving brainlists The question, “How many ways can 4 different students be selected in order from a class of 30 student

s?”, is a(n) _____.
Mathematics
1 answer:
AlexFokin [52]3 years ago
5 0

Answer:

³⁰C₄ = (30!)/(4!)(30-4)! = 27,405 WAYS

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: Kevin is planting 15 bushes and 9 trees in rows. If he wants all the rows to be exactly the same, with no plants left over, wh
Flauer [41]

Answer:

The greatest number of rows that can be planted, and have nothing left over, would be 3

Step-by-step explanation:

Find the greatest common factor (gcf) of 15 and 9

                     15: 1  3  5  15

                       9: 1  3  9

In this case, the gcf of 15 and 9 would be 3.

5 0
3 years ago
Read 2 more answers
30 children are going on a trip it cost £5 including lunch some children take their own packed lunch they pay only £3 the 30 chi
nikitadnepr [17]
No enough info
you can just say that five brought there own lunch while 19 didnt
7 0
4 years ago
Read 2 more answers
4(x-3)=9 what is the first step
gogolik [260]

Answer:

x= 5.25

Step-by-step explanation:

You have to get x alone, so do inverse operations.

(Basically, reverse what it is)

4(x-3)=9

divide 4 by both sides to get rid of 4 on left side

9/4 = 2.25

(x-3) = 2.25

Now add 3 to both sides, to get x alone

2.25 + 3 = 5.25

x=5.25

Check work

4(5.25-3) = 9

4(2.25) = 9

9=9

3 0
3 years ago
Please answer this question ;(
prohojiy [21]

Answer:

20 miles = 32 kilometers

64 kilometers = 40 miles

Step-by-step explanation:

5 0
3 years ago
HELP ME PLEASE !!!!!!!!!!!!!!!!!!!!!!!!!!!
scoray [572]
7x-3=60
7x=63
x=9

11y+5=60
11y=55
y=11

hope this helps!!!
5 0
3 years ago
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