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notsponge [240]
2 years ago
14

Evaluate the expression when c=4 and d=40 d-5c

Mathematics
1 answer:
Illusion [34]2 years ago
3 0

Answer:

20

Step-by-step explanation:

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Help plz I’m confused
Ilia_Sergeevich [38]

Answer:

C.

Step-by-step explanation:

\frac{2}{3} is between 0 and 1

Only 1 point is between 0 and 1

C.

6 0
2 years ago
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sue buys a shirt at a 30% markup. It costs her 31.20 before tax. What was the price of the shirt before the markup?
IRINA_888 [86]

[Hello,BrainlyUser]

Answer:

$21.84

Step-by-step explanation:

.30

31.20 * .30=9.36

31.20 - 9.36 =21.84

The price of the shirt before the markup is $21.84.

[CloudBreeze]

6 0
2 years ago
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Suppose we have 3 cards identical in form except that both sides of the first card are colored red, both sides of the second car
Nikolay [14]

Answer:

probability that the other side is colored black if the upper side of the chosen card is colored red = 1/3

Step-by-step explanation:

First of all;

Let B1 be the event that the card with two red sides is selected

Let B2 be the event that the

card with two black sides is selected

Let B3 be the event that the card with one red side and one black side is

selected

Let A be the event that the upper side of the selected card (when put down on the ground)

is red.

Now, from the question;

P(B3) = ⅓

P(A|B3) = ½

P(B1) = ⅓

P(A|B1) = 1

P(B2) = ⅓

P(A|B2)) = 0

(P(B3) = ⅓

P(A|B3) = ½

Now, we want to find the probability that the other side is colored black if the upper side of the chosen card is colored red. This probability is; P(B3|A). Thus, from the Bayes’ formula, it follows that;

P(B3|A) = [P(B3)•P(A|B3)]/[(P(B1)•P(A|B1)) + (P(B2)•P(A|B2)) + (P(B3)•P(A|B3))]

Thus;

P(B3|A) = [⅓×½]/[(⅓×1) + (⅓•0) + (⅓×½)]

P(B3|A) = (1/6)/(⅓ + 0 + 1/6)

P(B3|A) = (1/6)/(1/2)

P(B3|A) = 1/3

5 0
3 years ago
Write 3/60 as a fraction in its simplest form
mart [117]

Answer:

\frac{1}{20}

Step-by-step explanation:

\frac{3}{60}=\frac{1}{20}

To get \frac{1}{20} you needed to divide the numerator and denominator by 3.

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3 years ago
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Need help number 2 for a quiz !!!
Svetach [21]

Answer: radius: 6, center: (3,-4)

Step-by-step explanation:

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