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3 years ago

Please help with both of these

Mathematics

1 answer:

labwork [276]3 years ago

5 0

The first one is $105 because the simple intrest is going to be the same every year, so we find what the simple intrest is by multiplying.
750 x 0.14 = 105

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If the product is positive then m and n have

Crank

Answer:

Both be positive or both be negative

Step-by-step explanation:

Both be positive or both be negative

+ *+ = +

- * - = +

6 0

3 years ago

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a woman spent two thirds of her money. she lost two thirds of the remiander and then had $4(aus money) left. how much money did

antiseptic1488 [7]

Step-by-step explanation:

2/3 lost is 1/3 kept

2/3 of the 1/3 kept is 2/9 lost

1/3 x - 2/9 x = 4

3/9 x - 2/9 x = 4

1/9 x = 4

x = 36

First she lost 2/3 of 36, which is 24. She had 12 left. Then she lost 2/3 of 12 which is 8. She had 4 left.

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3 years ago

Simplify 3 - b (7b + 2) + 3b - (11 - b)

nirvana33 [79]

Answer: -7b² + 2b - 8

Step-by-step explanation:

Given expression

3 - b (7b + 2) + 3b - (11 - b)

Expand parentheses and apply the distributive property if necessary

=3 - b · 7b - b · 2 + 3b - 11 + b

=3 - 7b² - 2b + 3b - 11 + b

Combine like terms

=-7b² + (3b - 2b + b) + (3 - 11)

= $\boxed{-7b^2+2b-8}$

Hope this helps!! :)

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3 years ago

What is the negative reciprocal of 2

Zinaida [17]

Answer:

- $\frac{1}{2}$

Step-by-step explanation:

The reciprocal of a number n is $\frac{1}{n}$

The negative reciprocal is the negative of this, thus

reciprocal of 2 is - $\frac{1}{2}$

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4 years ago

What is the equation of the following direct variation?

nataly862011 [7]

Answer:

y=-2x

Step-by-step explanation:

Because, let us take (-1,2)

2=-2(-1)

2=2

Similarly all the points show the same.

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3 years ago

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