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notsponge [240]
2 years ago
10

Step by step please!

Mathematics
1 answer:
Vitek1552 [10]2 years ago
7 0

Answer:

21

I hope this helped I would appreciate brainliest if possible

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Martha has $20 to spend on a t-shirt. She has a coupon for 20% off. The t-shirt regularly sells for $22.50 plus 10% sales tax.
rodikova [14]

Answer:

1 and 3

Step-by-step explanation:

Step 1 is clearly elaborated.  Tax is impliedd on the discounted price.

In step 3, the steps of deductions are skipped.

Like 1 + 10% = 110% and 1 - 20% = 80%

Step 2 is simply wrong. Because the percentages are implied on different values.

5 0
3 years ago
If all of the diagonals are drawn from a vertex of a quadrilateral, how many triangles are formed? 1 2 3 4
Archy [21]
2 because if you have a square and draw a diagonal you get two triangles
5 0
3 years ago
Read 2 more answers
Can anyone do this please
morpeh [17]

Answer:

I know for the fact that it's the first one but I don't know the other answer

Step-by-step explanation:

An equation of a graph is y=mx+b and the B is the y-intercept which is -2 since the line is on top of -2. mx is the rise/run of -2 which is -3/2

Hope this helps, but I don't which other equation represents the graph.

8 0
3 years ago
If x varies directly as y, and x=12 when y=3, find x when y=7
Stella [2.4K]

Answer:

28

Step-by-step explanation:

x=12 and y=3

x=4 and y =1

x=28 and y=7

3 0
3 years ago
Read 2 more answers
Grade 8 math question plz show work
Nimfa-mama [501]
A. The population would be 120

You would find 20 percent of 100
To do that, you do 100× 0.2 and add that to 100

B. The population doubles

10×2= 20
20×2= 40, not 30

hope this helps!
6 0
3 years ago
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