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3 years ago

Help with number 6. A through F

Mathematics

1 answer:

Elodia [21]3 years ago

3 0

A) always

Example
-3+(-3)= -9

B) never

C) never
D) always
E)never
F)sometimes

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Step-by-step explanation:

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The sum of 30 and twice a number is 48. Find the number?

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Answer:

9 is the number

Step-by-step explanation:

Let's call this number x

The equation is:

30+2x=48

subtract 30 from both sides and you get

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divide 2 from both sides and you get

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Therefore, 30+2(9)=48

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Darren has a wooden board that is Three-fifths of a meter long. He cuts the board into 3 equal parts. How long is each section o

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Answer:

Each section of the board is 1/3 or 0.334(0.333333333333) of a meter

Step-by-step explanation:

3/5 divided by 3 is the equation we have to do.

3/5 divided by 3 is also equal to 3/5 times the reciprocal of 3 or 1/3

3/5 * 1/3

3*1 = 3

5*3 = 15

3/15 which can simplify to 1/3. (divide numerator and denominator by 3.)

Each section of the board is 1/3 or 0.334(0.333333333333) of a meter

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3 years ago

What expression is equivalent to (1/16)^-4

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Lisa, Juan and isaac equally shared 1/2 of a cake which fraction of the whole cake did each of them recieve

IgorLugansk [536]

Answer:

Each will receive $\frac{1}{6}th$ of the cake.

Step-by-step explanation:

Let the amount of cake = c

Lisa, Juan and Isaac are the persons who are sharing half of a cake equally.

Number of persons = 3

Part of the cake shared = $\frac{c}{2}$

Fraction of the cake shared by each = $\frac{\text{Amount of cake shared}}{\text{Number of persons who shared}}$

= $\frac{\frac{1}{2}c}{3}$

= $\frac{1}{6}c$

Therefore, fraction of total cake shared by each member will be $\frac{1}{6}$ of the total amount of cake.

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3 years ago