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2 years ago

how can you fluently add, subtract, mulitply, and divide decimals? how can you multiply and divide fractions?

Mathematics

1 answer:

Natasha2012 [34]2 years ago

8 0

Answer/Step-by-step explanation:

How can you fluently add, subtract, multiply, and divide decimals?

To add or subtract decimals:

1.Write the numbers vertically with the decimals lined up (if the number is a whole number then the decimal goes on the right end of the number)

2.Add zeros to make sure there are the same number of digits in each number.

3.Add or subtract as normal.

How can you multiply and divide fractions?

Dividing two fractions is the same as multiplying the first fraction by the reciprocal of the second fraction. The first step to dividing fractions is to find the reciprocal (reverse the numerator and denominator) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators.

Hope this help :3

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You are graphing Square ABCDABCDA, B, C, D in the coordinate plane. The following are three of the vertices of the square: A(4,

Vsevolod [243]

Answer:

D(4,-3)

Step-by-step explanation:

Given three of the vertices of the square: A(4, -7), B(8, -7),C(8, -3)

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$\left(\dfrac{8+x}{2},\dfrac{-7+y}{2}\right) =\left(\dfrac{4+8}{2},\dfrac{-7+(-3)}{2}\right)\\ \left(\dfrac{8+x}{2},\dfrac{y-7}{2}\right) =\left(\dfrac{12}{2},\dfrac{-10}{2}\right)\\ \left(\dfrac{8+x}{2},\dfrac{y-7}{2}\right) =\left(6,-5\right)\\$Therefore$:\\\dfrac{8+x}{2}=6\\8+x=12\\x=12-8\\x=4\\$Similarly$\\\dfrac{y-7}{2}=-5\\y-7=-5*2\\y-7=-10\\y=-10+7=-3$

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2 years ago

Simple interest rate earned after 12 years on 1350 at an interest rate of 8%

Mademuasel [1]

Answer:

1296

Step-by-step explanation:

Simple interest is

I = PRT where I is the interest P is the principle, r is the rate and t is the time

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I = 1296

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2 years ago

how can you fluently add, subtract, mulitply, and divide decimals? how can you multiply and divide fractions?​

how can you fluently add, subtract, mulitply, and divide decimals? how can you multiply and divide fractions?