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Sedaia [141]
1 year ago
11

You are playing a card game where the total points you earn depends on theasuits of the cards you draw. The total number of poin

ts is given by the expression3a + 3b-2c-2d, where a represents the number of hearts, b is diamonds, c isclubs, and d is spades. What is the total number of points you earn if you draw 3hearts, 2 diamonds and 1 spade? *
Mathematics
1 answer:
Semmy [17]1 year ago
4 0

3a + 3b-2c-2d

a= number of hearts

b= number of diamons

c= number of clubs

d= number of spades

if you draw 3hearts, 2 diamonds, and 1 spade, just replace a=3, b=2, c=0, d=1

3(3) + 3(2)-2(0)-2(1)

Multiply each term and add the results:

9+6-0-2 = 13

13 points

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Maggie's brother is 3 years younger than four times her age. The sum of their ages is 62. How old is Maggie? Maggie is years old
Nadusha1986 [10]

Answer:

Maggie is 13 years old.

Step-by-step explanation:

1M + 1B = 62

rearrange to get:

1B = 62 - 1M

4M - 3 = 1B

substitute B with 62 - 1M so there is only one variable. this gives:

4M - 3 = 62 - 1M

Get all the variables on one side:

4M + 1M - 3 = 62

Get all non variables on the other side:

4M + 1M = 62 + 3

simplify:

5M = 65

Divide both sides by 5 to get the M by itself:

M = 13.

BONUS:

M + B = 62

B = 49

So her brother is 49 years old.

Maggie is 13 years old.

5 0
3 years ago
Anarime estimates that of people booked on the fights actually show up in the e books 70 people on a fight for which the maximum
Mandarinka [93]

Answer:

An airline estimates that 94% of people booked on their flights actually show up. If the airline books 77 people on the flight for which the maximum number is 75, what is the probability that the number of people who show up will exceed the capacity of the plane?

-------------------------

Binomial Problem with n = 77 and p = 0.94

---

P(76 <= x <= 77) = 1-P(0 <=x <= 75) = 1 - binomcdf(77,0.94,75) = 0.0504

==================

Cheers,

Stan H.

3 0
3 years ago
The projected worth (in millions of dollars) of a large company is modeled by the equation w = 236(1.06) t. The variable t repre
Ivahew [28]

Answer:

$448 million

Step-by-step explanation:

When it is 2011, t=11, so

w=236(1.06)^{11} \approx 448

7 0
1 year ago
Round 13.9 to the nearest whole number
Rudik [331]
14
You are very welcome
3 0
3 years ago
Read 2 more answers
(6x + 7) - (9x + 9) simpilest form pls
My name is Ann [436]

Answer:

-3x+16

Step-by-step explanation:

7 0
3 years ago
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