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musickatia [10]
4 years ago
5

a grading machine can grade 48 multiple choice questions in 1 minute how long will it take to to grade 300 tests

Mathematics
2 answers:
Tems11 [23]4 years ago
7 0
It would be about 6 minutes and 15 seconds.
Varvara68 [4.7K]4 years ago
3 0
It would be about 6minutes 30 seconds
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In the diagram, point O is the center of the circle and AC¯¯¯¯¯ and BD¯¯¯¯¯ intersect at point E. If m∠AOB = 90° and
Romashka [77]
<span>m∠CED = </span><span>1/2(m∠AOB + </span><span><span>m∠COD)</span> = 1/2(90° + 16°) = 1/2(106°) = 53°</span>

7 0
4 years ago
ind the surface area of a sphere with a radius of 12 cm. Approximate as 3.14 and round your answer to the nearest hundredth
Bezzdna [24]
The surface area of a sphere is:

A=4πr^2, if r=12 and π is approximated as 3.14 then

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3 years ago
Jill wants to find the quotient use multiplication and distributive property to help Jill find the quotient of 144 divided by 8
UkoKoshka [18]
120+24 divided by 8=
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5 0
3 years ago
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What’s the answer to this problem
svp [43]
Yes he is correcct because 4/8 and 1/2 is the same thing
8 0
3 years ago
Cindy's age, x, is 3 times her age 6 years ago which equation represents the statement x=3(x-6) or x=3-6x or x=3x-6 or x=3x+6
WINSTONCH [101]
Let's denote Cindy's age which is unknown with X
We know that Cindy's age is 3 times her age 6 years ago. 
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3*(X-6)
So, finally:
X=3*(X-6)
8 0
4 years ago
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