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DaniilM [7]
3 years ago
12

Omar ordered his sister a birthday card from a company that randomly selects a card from their inventory. The company has 21 tot

al cards in inventory. 14 of those cards are birthday cards. What is P(not a birthday card)​
Mathematics
1 answer:
Ksju [112]3 years ago
8 0

Answer:

P = 7

Step-by-step explanation:

We have 21 total cards and out of those 21 cards, 14 of those are birthday cards. So that means that the amount of cards that are not birthday cards is the number of cards subtracted by the number of birthday cards, also shown as 21 - 14. So 21 - 14 = P, so now we solve what 21 - 14 is which is 7, so that means P = 7.

Let me know if you have any questions.

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How can i do this one ☝️
storchak [24]

Hey there!

Let's start by adding 5 to both sides. This eliminates the -5.  

1 = r/20

Now to solve for r we can multiply both sides by 20.

20 = r

Check

-4 = 20/20 - 5

-4 = 1 - 5

-4 = -4

Your answer is r = 20.

Hope this helps!

6 0
3 years ago
Read 2 more answers
K (t) = 13t - 2; k(3)
True [87]

Answer:

k(3)=37

Step-by-step explanation:

This questions asks us to find k(3).

We want to find what k(t), or y is, when t, or x is equal to 3.

k(t)=13t -2

Therefore, we can substitute 3 in for t.

k(3)= 13(3)-2

Solve according to PEMDAS ( Parentheses, Exponents, Multiplication, Division, Addition, Subtraction)

First, multiply 13 and 3

k(3)=39-2

Subtract 2 from 39

k(3)=37

4 0
3 years ago
How would you solve a inequality like: 15-13(2x+6)< 15-3(6x-7)
Arturiano [62]
<span>15 - 13(2x + 6) < 15 - 3(6x - 7)
15 - 26x - 78 < 15 - 18x + 21
-26x -63 < -18x + 36
-8x < 99
   x > -99/8
or
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</span>
3 0
3 years ago
Read 2 more answers
What is the area of this figure?
stepladder [879]

Answer:

22

Step-by-step explanation:

(5x2) + (3x2) + (3x2)

22 square units

Answer from Gauthmath

3 0
3 years ago
I need help with the problem​
oksian1 [2.3K]

Answer:

Angle Bisector

Step-by-step explanation:

8 0
3 years ago
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