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2 years ago

Simplify the following expression.

Mathematics

1 answer:

MissTica2 years ago

6 0

Answer:

D. 0.054

Step-by-step explanation:

61.904 - 61.85

= 0.054

Therefore, answer choice D is the correct answer.

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Asdasdasd

Amanda [17]

Answer: explanation

Step-by-step explanation:

1. answer:2592

explanation: it says to find the % of the small sample so 45 out of 75 is 60% then says to convert it into a decimal and multiply it by 4,320 which equals 2592.

2. answer:

explanation:540 is 12% of 4500. I don't quite understand what that number is but I'm assuming it's the percentage number and that number is 12 and that's 12% out of 100. if it means what percentage 540 is out of 100 then its 540%

3. answer:30
explanation: 4 out of 20 is 20% converted to decimal is 0.2 then multiply it by 15 0 and that adds to 30.

i hope this helped and i hope its correct

7 0

2 years ago

This for math. Rewriting Fractions <br> How do you decide which number to use in the Giant One?

ASHA 777 [7]

Answer:

factor of hundred is

100 - 1, 2,4,5,10,100

4 0

3 years ago

Lori is three times as old as Michelle. In five years Michelle's age will be one half of Lori's age. How old are Lori and Michel

AURORKA [14]

Answer:

Lori's age is 15 years old and Michelle's age is 5 years old now

Step-by-step explanation:

Let

x-----> Lori's age

y ----> Michelle's age

we know that

$x=3y$ -----> equation A

$(y+5)=\frac{1}{2}(x+5)$ ----> equation B

substitute equation A in equation B and solve for y

$(y+5)=\frac{1}{2}(3y+5)$

$2y+10=(3y+5)$

$3y-2y=10-5$

$y=5$

Find the value of x

$x=3(5)=15$

therefore

Lori's age is 15 years old and Michelle's age is 5 years old now

7 0

3 years ago

Identify the solutions of the system of equations, if any<br> x+5y=6<br> 6x-10y=12

saw5 [17]

$\left \{ {{x+5y=6} \ \ |2\atop {6x-10y=12}} \right. \\\\\\ \left \{ {{2x+10y=12} \atop {6x-10y=12}} \right. \\ ======== \\\\ 8x=24 \ \ \ |:8 \\\\ \boxed{x=3} \\\\ x+5y=6 \\\\ 5y=6-x \\\\ y=\frac{6-x}{5} \\\\ y=\frac{6-3}{5} \\\\ \boxed{y=\frac{3}{5}}$

8 0

3 years ago

Read 2 more answers

Find the exact values of cos 3 pi/4 radians sin 3 pi/4 radians HELP!

bixtya [17]

In degrees: 3π/4 radians = 135°
Angle of x=135° is in the 2nd Quadrant and has negative cos x values and positive sin x values.
cos 135° = cos ( 90° + 45°)= - sin 45° = $- \frac{ \sqrt{2} }{2}$
sin 135° = sin ( 90° + 45° ) = cos 45° = $\frac{ \sqrt{2} }{2}$ . You can also see the graph in the attachment.

Download docx

8 0

3 years ago