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vovangra [49]
3 years ago
12

Write -2 1/4 as a decimal ( with explanation please )

Mathematics
2 answers:
Karo-lina-s [1.5K]3 years ago
8 0

Answer:

2.25

Step-by-step explanation: Its 2.25 because .25 is a quarter of a whole and 1/4 is a quarter or it also you can do

 

     <u>0. 2 5</u>

 4 ) 1. 0 0

     <u>-0</u>

       1 0

         <u>-8</u>

           20

         <u> -20</u>

              0

zloy xaker [14]3 years ago
5 0

Answer:

-2.25

Step-by-step explanation:

If you want to convert -21/4 to a decimal you will want to split the fraction up to make it easier to work with.

-2 \frac{1}{4} = -2 + \frac{1}{4}

\frac{1}{4} is the same 1 divided by 4

So you will do

−2+(1÷4)

1 divide by 4 is 0.25 so you will do

-2+0.25 = -2.25

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Step-by-step explanation:

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4 years ago
Abby scored 87, 86, 93, and 89 on her first four history quizzes. What score does Abby need to get on her fifth quiz to have an
Delicious77 [7]

Answer:

(C) 100

Step-by-step explanation:

The average of a data set is just all the numbers added up divided by the amount of numbers.

If we already have 4 pieces of data and we're looking for one more, we have 5 data pieces.

This means that the sum of all of the numbers in the data set will be 91\cdot5=455 if the mean is 91.

We can find the missing value by adding up what we know and subtracting from 455.

87+86+93+89=355\\\\455-355=100

So Abby needs a 100% on her fifth history quiz to have an average of 91 on all her quizzes.

Hope this helped!

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3 years ago
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Liono4ka [1.6K]
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If A is the center of the circle then which statement explains how line GH is related to line FH
Art [367]

Answer:

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Step-by-step explanation:

A circle has different parts which include but no limited to; diameter, chord, radius, segment, sector, circumference etc. This, it can be observed that FG is a chord on circle A, and a chord is always perpendicular to the radius of the circle that bisects it. This implies that FG has been bisected into two equal haves of FH and GH by the radius AH.

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≻───── ⋆✩⋆ ─────≺

Answer:

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20 × 30 = 600

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