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3 years ago

6

" Find the percent of change. Round to nearest whole percent if necessary. State whether the percent of change is an increase or

decrease".

2 answers:

pav-90 [236]3 years ago

6 0

The answer is 1.5% because if you divide 2.75 to 1.8 the answer will be 1.52777778. So if you round it to the nearest hundredths you'll get 1.5.

sesenic [268]3 years ago

5 0

I hope this helps you

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Sylvanite is a mineral that contains 28.0% gold by mass. Determine how much sylvanite would you need to dig up to obtain 81.0 g

lidiya [134]

Since Sylvanite only contains 28% gold by mass, then to obtain 81.0 grams of gold, x amounts of sylvanite must be mined. To determine x, we divide 81 grams by 28%. This equation is shown below:

0.28X = 81

X = 81/0.28
X = 289.29 grams

Therefore, 289.29 grams of sylvanite must be dug up to obtain 81 grams of gold.

3 0

3 years ago

Write, in slope intercept form, the equation of the line that passes through (8, -9) and has a slope of -5/4.

dezoksy [38]

Answer:

The equation in the slope-intercept form will be:

$y=-\frac{5}{4}x+1$

Step-by-step explanation:

Given

slope = m = -5/4

point = (8, -9)

As we know that the equation of a line in point-slope form is

$y-y_1=m\left(x-x_1\right)$

substituting the values m = -5/4 and point = (8, -9)

$y-\left(-9\right)=\frac{-5}{4}\left(x-8\right)$

$y+9=\frac{-5}{4}\left(x-8\right)$

Writing the equation in slope-intercept form

$y=mx+b$

where m is the slope, and b is the y-intercept

so the equation of the line in slope-intercept form becomes

$y+9=\frac{-5}{4}\left(x-8\right)$

subtract 9 from both sides

$y+9-9=\frac{-5}{4}\left(x-8\right)-9$

$y=-\frac{5}{4}x+1$

Therefore, the equation in the slope-intercept form will be:

$y=-\frac{5}{4}x+1$

7 0

3 years ago

Michelle has a $100. She wants to purchase paper pins ($20) and file covers ($20) and paper weights. each paper weight costs $10

MatroZZZ [7]

$1000 - ($20 + $20) = $60
$60 / $10 = 6 paper weights

4 0

3 years ago

Omar is playing a computer game. He starts with 0 points wins 8 points loses 6 points 4 times and the wins 2 points. Which integ

poizon [28]

The integer that represents Omar's score is -14.

<h3>What is the integer represents Omar’s score?</h3>

Integers are whole numbers. It is a number without a fraction or decimal component. Integers can either be positive, negative or zero.

When Omar wins, the points are added and when he losses, the points are subtracted.

0 + 8 - (6 x 4) + 2

0 + 8 - 24 + 2 = -14

To learn more about integers, please check: brainly.com/question/21493341

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1 year ago

Chloe biked the same distance each day for 9 days. If she traveled 513 kilometers altogether, how many kilometers did she travel

kow [346]

Answer:

57 kilometers a day.

Step-by-step explanation:

I just divided 513 by 9 and got that.

5 0

2 years ago