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gayaneshka [121]
3 years ago
13

Please be quick! I need this as soon as possible !

Mathematics
1 answer:
Artyom0805 [142]3 years ago
6 0

Answer:

50 beats per minute

Step-by-step explanation:

20/100×h=10

h=10*5

= 50 beats

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Easy Multiple Choice Questions about expressions and linear equations / ASAP / Will mark brainliest / 25 Points
nata0808 [166]

Answer:

1.C

2.A

3.D

4.C

5.B

6.A

7.B

8.C

9.A

10. D

Step-by-step explanation:

For Problem 1, the work is as follows:

2(3x-1)+x\\Distribute\\6x-2+x\\7x-2

For Problem 2, the work is as follows:

(3x^{2} +6x+4) - (-x^{2} +2x-1)\\Distribute -\\(3x^{2} +6x+4) + (x^{2} -2x+1)\\Combine\\4x^{2} +4x+5

For Problem 3, the work is as follows:

5b-(a+c)^{2} \\5(3) - (-1+-4)^{2} \\15 - (-5)^{2} \\15-25\\-10

For Problem 4, the work is as follows:

4x-8 = -12\\+8\\4x = -4\\-4/4 = -1\\x = -1

For Problem 5, the work is as follows:

\frac{1}{2} (12x-6) = 2x-15\\Distribute\\\\6x - 3 = 2x -15\\+3\\6x = 2x -12\\-2x\\4x = -12\\-12/4\\x = -3

For Problem 6, the work is as follows:

17 *0.06 = 1.02\\17+1.02 = 18.02

For Problem 7, the work is as follows:

x = (2,0)\\y = (0,-1)\\\frac{rise}{run} \\y = \frac{1}{2} x-1

For Problem 8, the work is as follows:

y_{2} -y_{1} \\x_{2} -x_{1} \\-1-1 = -2\\0-(-2) = 2\\Slope = -1

For Problem 9, the work is as follows:

3y - 2x +6 = 0\\-3y\\(-3y - -2x+6)/-3\\y = \frac{2}{3} x -2

For Problem 10, the work is as follows:

(y-3) = -2(x-1)\\Distribute\\(y-3) = -2x+2\\+3\\y = -2x +5

Hope this Helps!

4 0
3 years ago
-0.6w=2.4<br> Please answer<br> Hggjigj
SashulF [63]

Final Answer: w = -4

Steps/Reasons/Explanation:

Question: Solve -0.6w = 2.4.

<u>Step 1</u>: Divide both sides by -0.6.

w = -\frac{2.4}{0.6}

<u>Step 2</u>: Simplify \frac{2.4}{0.6} to 4.

w = -4

~I hope I helped you :)~

8 0
3 years ago
Read 2 more answers
Help please, i am struggling on how to solve!
Elina [12.6K]

Answer:

x=3

Step-by-step explanation:

The hypotenuses are equal in length of both triangles.

13=4x+1

13-1=4x

12=4x

12/4=x

3=x

6 0
3 years ago
Read 2 more answers
What number is 2/10 of 20
I am Lyosha [343]

Answer:

2/10 * 20 = 4.

hope it helps

6 0
3 years ago
Read 2 more answers
An airplane 30,000 feet above the ground begins descending at a rate of 2,000 feet per minute. Write an equation to model the si
antiseptic1488 [7]
A = 30,000 - 2000m where A=altitude and m = number of minutes

After 5 minutes A ( altitude) = 30,000 - 2000(5) = 20,000 feet
6 0
3 years ago
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