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lisov135 [29]
3 years ago
9

Cameras R Us has a sale for 25% off camera bags, which is a discount of $20. To find the original cost of the camera bag, Tara c

reates the following diagram. A 2-column table with 6 rows. Column 1 has entries 20 percent, 20 percent, 20 percent, 20 percent, 20 percent, Total 100 percent. Column 2 has entries 25 dollars, 25 dollars, 25 dollars, 25 dollars, 25 dollars, blank total. What errors did Tara make in her diagram? Check all that apply. There should be 5 rows labeled 20%. The 25 should be for each percent, not dollar amounts. The percents do not add up to a whole of 100%. There should be 4 columns of 25% that each equal $20.
Mathematics
2 answers:
Vsevolod [243]3 years ago
6 0

Answer:

It will be 2. (B) and 4. (D)

Step-by-step explanation:

I took the assignment and got it right :D

Brrunno [24]3 years ago
3 0

Answer:

B. The 25 should be for each percent, not dollar amounts.

D. There should be 4 columns of 25% that each equal $20.

Step-by-step explanation:

hope this helps :D

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Dennis_Churaev [7]

Answer:

5

Step-by-step explanation:

What we have to know is that when two triangles are similar their sides will always be proportional. So we will create a proportion that goes like this...\frac{\Delta1side}{\Delta1base} =\frac{\Delta2side}{\Delta2base} but since it doesn't tell us the exact value of triangle 1. We will have to add 3 and 12 to get 15 which is the base of the first triangle. Now we're ready to write the proportion.

\frac{4x}{15}=\frac{3x+1}{12}

Now we cross multiply and solve the equation...

48x=15(3x+1)\\48x=45x+15\\3x=15\\x=5

So the value of x is 5.

7 0
3 years ago
During summer vacation, Erin read, on average, 4 pages per night. Once she returned to school, she averaged 3 pages per night. W
alexandr1967 [171]

Answer:

25% decrease.

Step-by-step explanation:

3/4=75%

100%-75%=25% decrease.

6 0
3 years ago
283% of 305 estimate
saveliy_v [14]
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5 0
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Read 2 more answers
9x=10 please help…….
Natasha_Volkova [10]

Let's solve your equation step-by-step.

9x=10

Step 1: Divide both sides by 9.

9x / 9 = 10 /9

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Answer:

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Four times the difference of a number and 7 is 32
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