Help pleaseeee I don’t understand it’s for a test and it’s timing me

Answer:

(4,1)

Step-by-step explanation:

could u plz vote me brainliest? thx :)

Answer:

31 minutes

Step-by-step explanation:

Here, we have 8 competitors with the previous runner outrunning the present by 9 seconds

1st runner time = 4 minutes 37 seconds

2nd runner time = 4 minutes 37 seconds - 9 seconds = 4 minutes 28 seconds

3rd runner time = 4 minutes 28 seconds - 9 seconds = 4 minutes 19 seconds

4th runner time = 4 minutes 19 seconds - 9 seconds = 4 minutes 10 seconds

5th runner time = 4 minutes 10 seconds - 9 seconds = 4 minutes 1 second

6th runner time s= 4 minutes 1 second - 9 seconds = 3 minutes 52 seconds

7th runner time = 3 minutes 52 seconds - 9 seconds = 3 minutes 43 seconds

8th runner time = 3 minutes 43 seconds - 9 seconds = 3 minutes 34 seconds

The total time is the addition of all the times

For clarity sake, we shall be adding all the minutes together and all the seconds together;

That will be ;

(4 * 6) + 3 minutes + ( 34 + 43 + 52 + 1 + 10 + 19 + 28 + 37)

= 27 minutes + 224 seconds

We need to convert 224 seconds to minutes

Since 60 seconds make one minute; we have

224 - 60(3) = 3 minutes and 44 seconds

Let’s add this to the minutes we had before

That would be;

27 minutes + 3 minutes + 44 seconds

= 30 minutes 44 seconds

since 44 seconds is greater than 1/2 minute (30 seconds), we can approximate it to 1 minute

So the total time is 30 minutes + 1 minute = 31 minutes

Answer:

i think it is false, true, false

Step-by-step explanation:

Answer: 2(10-y)=20-2y

Step-by-step explanation:

First, you distribute 2 to 10. Then times 2 to -y.

Answer:

sorry , but where is the question?

Answer:

C

Step-by-step explanation:

6a^2 is the formula

plug in and solve

Answer:

[tex]x = -\frac{1}{7}[/tex]

Step-by-step explanation:

2(5x + 1) - 2x = 2 - 2(3x + 1)

Use the distributive property

10x + 2 - 2x = 2 - 6x -2

Combine like terms

8x + 2 = -6x

Subtract 2 from both sides

8x = -6x - 2

Add 6x to both sides

14x = -2

Divide both sides by 14

x = -2/14 = -1/7

2ND,5th,last     i need 20 charcters so im just gonna type hdhdhdhdxjhd

Answer:

zero

Step-by-step explanation

cuz i'm a different breed

Answer:

zero

Step-by-step explanation:

Answer:

y=9/5

Step-by-step explanation:

Answer: The answer is -1.4

Step-by-step explanation: The first step you need to do is subtract the 8 from the 1 which gives you -17, then you bring down the 1/5y=-7 then you multiply 1/5, or .20 from -7 and that gives you -1.4

Answer:

7/12

Step-by-step explanation:

Answer:

1/3 and 1/4 are already in their simpliest form.

1. y-12 =9

y = 12 + 9

y = 21

2. 42=7x

x = 42/7

x = 6

3. 5p-7=28

5p = 28 + 7

5p = 35

p = 7

4. 1.5x+1.3x=-8.4

2.8x = - 8.4

x = - 8.4 : 2.8

x = - 3

5. 4/3w -12=2/3w

w = 18

6. 4 (3q-2)=16q

12q - 8 = 16q

4q = -8

q = - 2

7. -h+4=-h+9

4 = 9

∅

8. t+3t-7=4t-7

4t - 7 = 4t - 7

4t = 4t

0 = 0

9. 1/4(n-6)=1/4-3/2

n = 1

10. 2d+1/6=6(1/3d+1)

2d + 1/6 = 2d + 6

1/6 = 6

Answer:

34 +x = 42

x = 42- 34

= 8

is the right answer

Answer:

8

For this problem, subtract 34 from 42.

42 - 34 = 8.

You get the number 8.

It will be your answer. Hope this helps!

Answer:

-17

Step-by-step explanation:

Answer:

m<1=117° by the Vertical Angles Congruence Theorem.

m<2=117° by the Alternate Exterior Angles Theorem.

Step-by-step explanation:

Vertical Angles Congruence Theorem- if two angles are vertical angles, then they are congruent.

Alternate Exterior Angles Theorem- when two parallel lines are cut by a transversal, the resulting alternate exterior angles are congruent.

I hope this helps you out!! Have an amazing day :)

From the given diagram

m∠1 = 117° (Vertically opposite angles)

m∠2 = 117° (Corresponding angles)

In the diagram, we have two parallel lines and a transversal intersecting the two lines.

From one of the theorems, when two lines intersect, the opposite angles are equal. This is the vertically opposite angles theorem

In the diagram, angle 1 is opposite to the angle that measures 117°

∴ m∠1 = 117° (Vertically opposite angles)

In the diagram, angle 1 and angle 2 are found at different intersections and on the same side of each of the parallel lines as well as on the same side of the transversal line. Therefore, they are corresponding angles.

From one of the theorems, corresponding angles are equal. That means angle 1 is equal to angle 2

Since, m∠1 = 117°

∴ m∠2 = 117° (Corresponding angles)

Hence, from the diagram

m∠1 = 117° (Vertically opposite angles)

m∠2 = 117° (Corresponding angles)

Learn more here: https://brainly.com/question/16966545

Answer:

6

3

2

Step-by-step explanation:

Answer:

The missing statement is 9x = 61

Step-by-step explanation:

R2. is Addition Property of Equality.

R3. is Distribution Property

R5. is Divisin Property of Equality.

I hope this helps you, I haven't done this for quite some time. Sorry it took me just now to find your question.

Answer:

25

Step-by-step explanation:

Answer:

25

Step-by-step explanation:

braniest pls

Answer:

1

Step-by-step explanation:

7+1

=8

8*2

=16

Answer: 75%

Step-by-step explanation:

15/20 = 3/4 or 75%

Answer:

Step-by-step explanation:

let the first angle be 5x

second be 4x

and third be 1x

as we know that by adding all the sides of triangle we get 180°

therefore  ,

5x+4x+1x=180°

10x=180°

hence ,  

x=18°

first angle - 18*5 = 90°

second angle - 18*4=72°

third angle - 18°

HOPE THIS HELPS YOU !!!

Answer:

18°, 72°, 90°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

sum the parts of the ratio, 5 + 4 + 1 = 10 parts

divide to find the value of one part of the ratio

180° ÷ 10 = 18° ← value of 1 part of the ratio , thus

5 parts = 5 × 18° = 90°

4 parts = 4 × 18° = 72°

Thus the angles of the triangle are 18°, 72° and 90°

Answer:

I think I did my math right. Is it 11? If it's not I tried to help.

Step-by-step explanation:

The equation for the number of beats per minute is 55 beats per minute

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the total number of beats be = A

Now , the value of A = 220 beats

The total time required for Sam to have 220 beats = 4 minutes

So , the number of beats of Sam in 1 minutes is calculated by

The equation will be

The number of beats of Sam in 1 minutes is = total number of beats  / total time required for Sam to have 220 beats

The number of beats of Sam in 1 minute is = 220 / 4

The number of beats of Sam in 1 minute is = 55 beats per minute

Therefore , Sam would have 55 beats every minute or 55 beats per minute

And for the period of 4 minutes , Sam would have

Number of beats for 4 minutes = number of beats of Sam in 1 minute x 4

Number of beats for 4 minutes = 55 x 4

Number of beats for 4 minutes = 220 beats in 4 minutes

Hence , The equation for the number of beats per minute is 55 beats per minute

To learn more about equations click :

https://brainly.com/question/10413253

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Answer:

6.8

Step-by-step explanation:

30% of 82.40 = 24.72

20% of 63.60 = 12.72

--------------------------------

82.40 - 24.72 = 57.68

63.60 - 12.72 = 50.88

57.68 - 50.88 = 6.8

Answer:

6.8

Step-by-step explanation:

Answer:

-13

Step-by-step explanation:

when you calcute -7and 6 you get -13