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3 years ago

13

A student reads 3/5 of a book in 30 minutes. if the student is reading at the same speed in 40 minute how much of the book will

the student read

1 answer:

Doss [256]3 years ago

6 0

He will read 4/5 of the book in 40 minutes

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Estimate the sum or difference <br> 6/10 + 7/12

Marat540 [252]

6/10 + 7/12 = 142/120 = 71/60 = 1.18 (One whole number, and 11/60)

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3 years ago

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creativ13 [48]

The answer is three you have to times the top numbers and divide

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2 years ago

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Simplify 8 over negative 3 divided by negative 4 over 9 . (5 points) <br> -8<br> -6<br> 6<br> 8

denpristay [2]

Answer:

6

Step-by-step explanation:

(8/3) / (-4/9)

when dividing fractions you use the acronym k.c.f (keep change flip)

keep the first fraction

change the operation (divide to multiply)

flip the other fraction

(8/-3) x (9/4)

after re-writing your expression, you want to solve

do this by multiplying both numerators by each other and same with the denominators

(-8x9) / (3x-4)

then you get a new fraction,

-72/-12

simplify,

-72/-12 = 6 (multiplying/dividing 2 negatives will always give you a positive)

3 0

3 years ago

Mrs. Duncan measured the lengths of a crayon and a pencil. The pencil is double the length of the crayon. The sum of their lengt

Margarita [4]

Answer: The length of pencil is 16 centimetres and length of crayons is 8 centimetres

Step-by-step explanation:

Let the length of crayon = $x$

Length of a pencil = $2x$

As according to question that the sum of their length is 24 centimetres

So we have

$x+2x=24\\\\\Rightarrow 3x= 24 \\\\\Rightarrow x= \dfrac{24}{3} =8$

Therefore the length of crayon = 8 centimetres

Length of pencil= $2x= 2\times x = 2\times 8 =16$ centimetres

Hence, the length of pencil is 16 centimetres and length of crayons is 8 centimetres

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3 years ago

What is the sum of 4 and its additive inverse?<br>

vovangra [49]

Answer:

what do you mean inverse

Step-by-step explanation:

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3 years ago

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