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chubhunter [2.5K]
3 years ago
8

Mrs. Gartland bought X number of shirts for the new members of record the class for X number of shirts including $3.99 shipping

was $77.49. Each shirt cost $12.25 there was no sales tax on this purchase which equation can be used to find X
Mathematics
1 answer:
Ymorist [56]3 years ago
6 0

Answer:

6 shirts were bought

Step-by-step explanation:

12.25x + 3.99 = 77.49

subtract 3.99 from both sides

12.25x = 73.50

divide both sides by 12.25

x = 6

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The square of a positive number is equal to its triple added to 28. What is this number?​
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hi brainly user! ૮₍ ˃ ⤙ ˂ ₎ა

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\huge{ \rm{Answer:}}

The roots of the equation are 7 and -4, because 7 - 4 = 3 and 7. - 4 = -28

Step-by-step explanation:

The positive number is equal to 7.

Assuming that the number is equal to "x" we have:

\begin{gathered}x^2 = 3x + 28\\\\x^2 - 3x - 28 = 0\\\\a = 1\\\\b = -3\\\\c = -28\\\end{gathered}

By the sum and product method, we have:

\begin{gathered}S = -b / a\\\\S = -(-3) / 1\\\\S = 3\\\\\end{gathered}

\begin{gathered}P= c / a\\\\P = 28 / 1\\\\P = 28\\\\\end{gathered}

4 0
2 years ago
Help i’ll give extra points
Inessa05 [86]
The slope is 1/1
You can use rise over run
3 0
2 years ago
Read 2 more answers
Each of 11 refrigerators of a certain type has been returned to a distributor because of an audible, high-pitched, oscillating n
Pie

Answer:

The correct answer is 1,51%

Step-by-step explanation:

To get the probability  equally likely of the first 6 examined that have a defective compressor, we use the following formula

P=# of possibilities that meet the condition / #of equally likely possibilities.

As there are multiple events ,  and all must be achieve, we multiply the probabilities.

P1=7 / 11

P2=6 / 10

P3=5 / 9

P4=4 / 8

P5=3 / 7

P6=2 / 6

P(x)=7 / 11*6 / 10*5 / 9*4 / 8*3 / 7*2 / 6=0,01515151515

P(x)=1,51%

3 0
3 years ago
Select ALL the numbers that are greater than 2.
ivanzaharov [21]

Answer: B and D

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13/11 • 2 = 2.36

3.7 • 0.5 = 1.85

hope this helped :)

6 0
3 years ago
The answer to a,b and c
GuDViN [60]

Answer:

16/45; 4/45; 1125

Step-by-step explanation:

Since you know that 4/9 and 1/5 are used, make them common denominators. So 4/9 would turn into 20/45 and 1/5 would be 9/45. It results in 29/45, but that is the amount spent, so you would subtract 45-29/45, resulting in 16/45. For B, you know that she spent 3/4 of the savings, so you know that 1/4 is not being spent. So use 1/4 multiplied by 16/45 from part A to get 4/45. For C, you know that 4/45 is $100, so I multiplied 45x100 to get 4500 and then divided by 4 to get 4500/4.

8 0
3 years ago
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