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3 years ago

Please help!!! Will give 20 points if right! Need ASAP!!

Mathematics

1 answer:

Dima020 [189]3 years ago

8 0

Answer:

so basically its the second one if you know what your really doing

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Carrie has 300 marbles 25 of the marbles are green 15% of the marbles are red and the rest of the marbles are blue how many blue

Rus_ich [418]

Answer:

230.

Step-by-step explanation:

$\: \: \: \: 300 - 25 - \frac{15}{100} \times 300 = \\ = 275 - 45 = \\ = 230$

Hope this helps!

4 0

3 years ago

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I need some help with this. If you could help me, that would be great.

Vesnalui [34]

Answer:

.31 g / mL

Step-by-step explanation:

Density = mass / volume

Sample 3

mass = 7 1/4 = 7.25

Volume 23.1

Density = 7.25/ 23.1 = .313852814

To the nearest hundredth

.31 g / mL

8 0

3 years ago

What is half of seven in a whole number

Nikitich [7]

0.7 / 100 = 0.007 or 0.007 x 100 = 0.7 hope this helps

6 0

3 years ago

Write an equation in standard form of the line that contains the point (-1,2) amd is perpendicular to y = 3x - 1

Strike441 [17]

Since it is perpendicular to y=3x-1, the slope must be a negative reciprocal.
there the slope of the perpendicular line is $-\frac{1}{3} x$

So now we have,
$y=- \frac{1}{3} x+b$

To find b, we use the point that the line passes through and substitute it to the y and x values.

$2=- \frac{1}{3} (-1)+b$

which would give us b=5/3

Therefore, the equation of the line is
$y=- \frac{1}{3} x+ \frac{5}{3}$

7 0

3 years ago

What is the simplified form of the expression?

sineoko [7]

The answer is: 10 x¹³ y¹⁰ .
__________________________________________________________

1x^8 * 2y^(10) * 5x^5 =

1* 2* 5 * x^8 * x^5 * y^(10) =

10 * x^(8+5) * y^(10) =

10 * x^(13) * y^(10) = 10 x^(13) y^10 ; write as:
_______________________________________________
10 x¹³ y¹<span>⁰ .
<span>______________________________________________________</span></span>

6 0

3 years ago

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