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dlinn [17]
3 years ago
11

A clothing store is raising the price of all its sweaters by $3.00. Write a expression that could be used to find the new prices

of a sweater that originally cost d: dollars.
Mathematics
1 answer:
ehidna [41]3 years ago
8 0
Y=d-3. Y is equal to the cost of the sweaters before the price was raised. D represents the price of the sweaters after the price jump. The three is how much the sweater price was raised by. Say the new price of the sweaters are $29.99 each. You would plug in 29.99 for d. y=29.99-3. The new price of the sweaters would be $26.99 (this is just a sample problem)
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1.3b^2 t 4b+1 when b=-2
lutik1710 [3]
1- 3(-2^2t)-7
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I can’t find the first one because of t
4 0
3 years ago
Write the equation of the line parallel to the y axis at a distance of 7 units form it to is left​
Finger [1]

Answer:

x = -7

Step-by-step explanation:

Two parallel lines are lines that never intersect each other.

The y-axis can be written as x = 0.

Then if we want a parallel line to this one, it must be something like x = b

such that b ≠ 0.

Now we want that the distance between our line and the line x = 0 is 7 units to the left

(remember that the left is the negatie side of the axis)

then we can write:

b - 0 = -7

b = -7

The parallel line is x = -7

6 0
3 years ago
A password contains exactly 7 letters. How many passwords are possible if letters cannot be used more than once?
DerKrebs [107]

Answer:

B

Step-by-step explanation:

This is a combination problem. For the first letter, there are 26 possible letters in the alphabet to use. For the second, we cannot use the letter used in the first, so there are only 25 possible letters. Repeat this for the remaining 5 letters.

1st - 26

2nd - 25

3rd - 24

4th - 23

5th - 22

6th - 21

7th - 20

To find the number of possible passwords, simply multiply all these numbers together. 26*25*24*23*22*21*20 = 3,315,312,000. Therefore B is the correct answer.

8 0
2 years ago
Read 2 more answers
Jane bought a packet of 12 cards for $15.00 <br>What would be the average price of a card?
nignag [31]
12 cards = $15.00

1 card = $15.00 ÷ 12 = $1.25


Answer: $1.25
5 0
3 years ago
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eimsori [14]
2 1/2 * 7 = 17.5. she ran 7 days
5 0
4 years ago
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