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liraira [26]
3 years ago
5

Which equations does the number 7 make true? Select all that apply. 20/21 × _____ = 3/20 13/28 × _____ = 5/2 11/14 × _____ = 11/

2 3/35 × _____ = 3/5 5/7 × _____ = 5
Mathematics
1 answer:
xxTIMURxx [149]3 years ago
3 0
Answer: 11/4 x 7 = 11/2 ; 3/35 x 7 = 3/5 ; 5/7 x 7 = 5. So, the last three you listed work with 7 in the blank.
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What is the approximate area of a sector of a circle with a radius of 8 cm, and a minor arc of 70 degrees?
oee [108]

Answer:

39.0953=39cm2

Step-by-step explanation:

Minor arc =70

Angle of arc=70

Then this sector =70/360=7/36 of the circle

Then area = 7/36x3.14x8x8=39cm2 approximatly

5 0
2 years ago
2. The table below shows that the distance d varies directly as the time t. Find the constant of variation and the equation whic
Artemon [7]
<h2><u>Problem Solving</u>:-</h2>

2. The table below shows that the distance d varies directly as the time t. Find the constant of variation and the equation which describes the relation.

<h2><u>Solution</u>:-</h2>

Since the distance d varies directly as the time t, then d = kt.

Using one of the pairs of values, (2, 20), from the table, substitute the values of d and t in d = kt and solve for k.

\sf{\rightarrow{d =  kt}}

\sf\rightarrow{20  = 2k }

\sf\rightarrow{K= \frac{20}{2} }

\sf\rightarrow{K={\color{magenta}{10}}}

<h2><u>Answer</u>:-</h2>
  • Therefore, the constant of variation is 10.
3 0
2 years ago
An 11-inch string is cut into 3 equal pieces. Which expression shows the length of each piece?
notka56 [123]

Answer:

A. 11/3

Step-by-step explanation:

11/3 is saying 11 dived by 3, and in the short story the 11-inch string is being cut (divide) into 3 parts.

Hope this helped!

5 0
3 years ago
Read 2 more answers
4 pounds covers434 sq ft how many pounds needed for 6944 square feet
Ivenika [448]

Answer:

You would need 64 pounds.

STEP BY STEP EXPLANATION:

4 pounds covers 434 sq ft

434 goes into 6944, 16 times

16 x 4  = 64

I hope this helps :)

Have a nice day!

6 0
3 years ago
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snow_tiger [21]

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7 0
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