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Gemiola [76]
3 years ago
11

8. Beatrice has 20 coins in quarters and nickels. The total value of her coins is $2.20. How many mickels and quartiers

Mathematics
2 answers:
kupik [55]3 years ago
6 0

Answer:

40

Step-by-step explanation:

Inga [223]3 years ago
3 0

Answer:

6 quarters, 14 Nickels.

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ANHL player's labor negotiating committee is to be selected from 8 player representatives from the Eastern Conference and 7 play
cestrela7 [59]

Answer:

21 / 143

Step-by-step explanation:

Given that:

Number of Eastern conference reps = 8

Number of western conference rep = 7

Probability of selecting 3 from Eastern reps and 2 from western reps

Probability = required outcome / Total possible outcomes

Total possible outcomes:

selection to be made = 3+ 2 = 5

Total Number of players = 8 +7 = 15

Total possible outcomes

Using combination formula :

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

15C5 = 15! / 10!5! = (15 * 14 * 13 * 12 * 11) / (5*4'3*2*1) = 360360 / 120 = 3003

Total possible outcomes = 3003

Required outcome :

8C3 * 7C2

8C3 = 56 ; 7C2 = 21

8C3 * 7C2 = 56 * 21 = 1176

required outcome / Total possible outcomes

= 1176 / 3003

= 21 / 143

6 0
3 years ago
What is the slope of the line perpendicular to y=-3x+4?
inessss [21]

The perpendicular line would have a slope of 1/3.

Perpendicular lines have opposite and reciprocal slopes.

To do the opposite, take the original slope (-3) and change the sign (3).

To do the reciprocal, take the slope we changed (3) and flip it as a fraction (1/3).

This gives us a new slope of 1/3.

7 0
3 years ago
Which statement can be used to prove WX Perpendicular to XY​
sveta [45]

Answer: as long as w x and x y have opposite reciprocals for their slopes they are perpendicular

Step-by-step explanation:

3 0
3 years ago
A particular type of cell triples in number every hour. Write a function that models
GREYUIT [131]

Answer:

part 1: white blood cells

part 2: C=3h(6)

Step-by-step explanation:

I hope this is correct pls let me

know in the comments below if i am correct

6 0
3 years ago
Please answer quickly, thank you for your help
RoseWind [281]

Answer:

-6<x<-9

Step-by-step explanation:

if x+9<0 and 2x>-12

x<-9

x>-6

X is smaller than -9 but greater than -6.

The solution is -6<x<-9

6 0
3 years ago
Read 2 more answers
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