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3 years ago

What number is the same as 7 tens and 21

Mathematics

1 answer:

Alexandra [31]3 years ago

5 0

91 is the number because 7x10 =70 +21=91

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2 years ago

For his long distance phone service, Keith pays a $3 monthly fee plus 11 cents per minute. Last month, Keith's long distance bil

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Step-by-step explanation:

First, subtract 3 from 13.67 so we can find out the minutes only and not the minutes along with the monthly bill.

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2 years ago

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rosijanka [135]

Answer:

Therefore the value of EC is 13 unit.

Step-by-step explanation:

Given:

ABCD is a Rectangle

EC = 6x + 1

AE = x +11

To Find:

EC = ?

Solution:

ABCD is a Rectangle .........Given

Diagonal of Rectangle Bisect each other. .......Property of Rectangle

$AE = EC$

Substituting the values we get'

$x+11=6x+1\\6x-x=11-1\\5x=10\\x=\dfrac{10}{2}\\\\x=2$

Substituting 'x' in EC we get

$EC=6\times 2+1=13\\EC=13\ unit$

Therefore the value of EC is 13 unit.

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2 years ago