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goldfiish [28.3K]

3 years ago

12

A number is increased by 25% and the resulting number is then decreased by 20%. The final number is what percent of the original

number?

1 answer:

otez555 [7]3 years ago

6 0

5%. because if u subtract 25 by 5 u get 20. the final number is 5. thus 5%.
hope this helps

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Solve the equation 18=-5(4x+3)+21x

AlexFokin [52]

$-5(4x+3)+21x=18\\\\(-5)(4x)+(-5)(3)+21x=18\\\\-20x-15+21x=18\ \ \ |+15\\\\x=33$

5 0

2 years ago

y : (<img src="https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B18%5C%5C%7D" id="TexFormula1" title="\frac{3}{18\\}" alt="\frac{3}{18\\}

poizon [28]

Answer:

whats the given?? what you need I don't understand

5 0

2 years ago

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Which expressions are equivalent to 7 (negative three-fourths x minus 3)? Select two options.

polet [3.4K]

<em><u>The equivalent expressions are:</u></em>

$7(-\frac{3}{4}x - 3) = (7 \times \frac{-3}{4}x) + (7 \times -3)\\\\7(-\frac{3}{4}x - 3) = \frac{-21x}{4} - 21$

<em><u>Solution:</u></em>

<em><u>Given expression is:</u></em>

$7(-\frac{3}{4}x - 3)$

We have to find the equivalent expressions

By distributive property,

a(b + c) = ab + ac

Therefore,

$7(-\frac{3}{4}x - 3) = (7 \times \frac{-3}{4}x) + (7 \times -3)\\\\7(-\frac{3}{4}x - 3) = \frac{-21x}{4} - 21$

Thus equivalent expressions are found

7 0

3 years ago

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If x=2, y=3 and z=1 then find the value of <br> 1/2 x + 3/4 y

Nuetrik [128]

Answer:

1 1/4

Step-by-step explanation:

x=2, y=3, and z=1

1/2(2)+3/4(3)=1+3/12=1 1/4

7 0

3 years ago

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I need serious answers ppl keep putting those links

ohaa [14]

Answer:

Roman

Step-by-step explanation:

An easy way to solve this is looking at whether the line has a positive or negative slope. We read graphs from left to right so <u>if the line is increasing from left to right, it has a positive slope while a line decreasing from left to right has a negative slope</u>. Since the line shown is decreasing from left to right, it will have a negative slope and Roman is the only one out of the two that shows a negative slope. To check to see if he's correct, we can check the y-intercept. The y-intercept of the line is 8 and Roman also has 8 written in the expression. Hence, meaning Roman is correct.

Best of Luck!

7 0

2 years ago