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MakcuM [25]
3 years ago
12

10

Mathematics
1 answer:
alukav5142 [94]3 years ago
8 0
The answer to that would be many
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A notebook costs $4.50 plus sales tax. After sales tax, the notebook is $4.86. What is the percent of tax?
irinina [24]
8 percent because 8 percent of 4.5 is 0.36 and you just add and you get 4.86
6 0
3 years ago
The mean of six numbers is 10. When
vivado [14]

Answer:

3

Step-by-step explanation:

If 6 numbers have a mean value of 10, it means that the sum of the numbers divided 6 is equal to 10. This can be expressed as:

x÷6=10

x=60

The new number added will be the 7th number and now the mean is 9. You have to ask what number divided by 7 is equal to 9? This can be expressed as:

y÷7=9

y=63

63-60=3

So the new number added is 3

5 0
3 years ago
Read 2 more answers
Sam missed a question on his Algebra Test. He wrote his work down. Where is his error in solving 3x + 2 = 14?
Snowcat [4.5K]

Answer:

10/3

Step-by-step explanation:

Step 1: Subtract 4 from both sides.

3

x

+

4

−

4

=

14

−

4

3

x

=

10

Step 2: Divide both sides by 3.

3

x

3

=

10

3

3 0
3 years ago
Read 2 more answers
A rectangle has an area of 717.8m squared. One of the sides is 7.4m in length. What is the perimeter of the rectangle btw it’s n
vlabodo [156]

Answer:

I think it's 208.8m

Step-by-step explanation:

717.8 divided by 7.4 = 97. 97 x 2 + 7.4 x 2 =208.8m

6 0
3 years ago
-f+2+4f=8-3f−f+2+4f=8−3f
Anna11 [10]

Answer:

Step-by-step explanation:

Merge the Like variables/terms together

3f+2=10=8-3f

Get F on one side

6f+2=10=8

Sub 2

8 0
3 years ago
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