lin run 5 laps around a track in 10 minutes. How many minutes per lap is that​

Answer:

1.)[tex]x=-\frac{1}{6} +\frac{5y}{6}[/tex]

2.)[tex]x=\frac{5}{3} -\frac{2y}{3}[/tex]

Answer:

A) x+y

Step-by-step explanation:

A)  x+y

C & D are automatically out because if you multiply or divide by a negative number, you get a positive number.

B) -11/8-(-11/4)=

-11/8+22/8=11/8 (positive)

Answer:

The answer would be B.

Step-by-step explanation:

The answer is B Because -11/4 -11/8 would equal to -4 1/8 which is negative so the answer is B

Answer: 3 students

Step-by-step explanation:

15% of 20

Answer:

Step-by-step explanation

Answer:

12

Step-by-step explanation:

Pythag Theorem is Leg² + Leg²= Hypotenuse²

So I set it up as: x² + 9²=15²

Then solved and got: x² + 81 =225

Then I subtracted 81 on both sides and got: x² = 144

Then squareroot each side to undo the x² and got x=12

Answer:

they are both half

Step-by-step explanation:

1 is half of 2 And 4 is half of 8

Answer:

The sides of the the triangle is 7. The total of the the triangle is 24.

Step-by-step explanation:

I count how many triangle there is and is 7. I count all of the side of the triangle and it's 24.

Answer:

A,B, and C are all correct

Step-by-step explanation:

Rigid transformations do not change figures except for where they are at.

Answer: 17 square units

Step-by-step explanation:

There are two rectangles

One has the dimensions

5 by 3, A = 5 * 3 = 15

The other has the dimensions 3-2 or 1 by 7-5 or 2, A = 1 * 2 = 2

Add the areas:

15 + 2 = 17

The entire area is 17 square units

Answer:

a survey

observational study

Please give me Brainliest, I really need it.

A Survey is the gathering of information. Asking a group to respond to one or more questions is an example of a survey which is a type of observational study.

A survey is a collection of question asked to a random group of people who represent the entire population, the responses of the group is assumed to be valid for the entire population.

The blank spaces in the statement can be filled as shown below.

Asking a group to respond to one or more questions is an example of a survey which is a type of observational study.

Learn more about Survey:

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Answer:

Angle 5 is 75 degrees

Step-by-step explanation:

angle 1 is congruent to angle 5

so angle 5 is also 75 degrees.

The measure of angle 2 and 5 are 65° and 85° respectively.

Angles in parallel lines are angles that are created when two parallel lines are intersected by another line called a transversal.

Given that, lines A and B are parallel.

Here, m∠1 = 75° and m∠3 = 40°

Now, x+m∠2+m∠3=180°

x=m∠1 (Vertically opposite angles)

x=75°

75°+m∠2+40°=180°

m∠2+115°=180°

m∠2=65°

m∠2=m∠4=65° (Interior alternate angles are equal)

Now, m∠4+m∠3+m∠5=180°

65°+40°+m∠5=180°

m∠5=85°

Therefore, the measure of angle 2 and 5 are 65° and 85° respectively.

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Answer:

$365

Step-by-step explanation:

did the math

Answer:

step 1 is wrong

subtract 15 from both sides

x=46

neither tom nor jerry

Answer:

both answers are wrong, substract 15 from both sides, 46, neither tom nor jerry

Step-by-step explanation:

1. 12 ÷ 4 = 3

2. -2.5=25

x=-10

3. 123-77=46

4. neither one of them because 41+12≠29 and 52-14≠66

Answer:

80

Step-by-step explanation:

Answer:

15504 ways

Step-by-step explanation:

[tex]C(n,r)=\frac{n!}{r!(n-r)!} \\\\C(20,5)=\frac{20!}{5!(15)!} \\\\C=15504[/tex]

Answer:

7:30

Step-by-step explanation:

5:30 + 2:00 = 7:30

Answer:

7:30 p.m.

Step-by-step explanation:

you start babysitting at 5:30 you babysit for 2 hours 5 + 2 equals 7 . 7+.30 equals 7:30 p.m.

Answer:

D last one

Step-by-step explanation:

Answer:

length=4 1/4

Step-by-step explanation:

Answer:

price increase

Step-by-step explanation:

.....

Answer:

The answer would be 150 degrees.

Step-by-step explanation:

When looking at the problem you can see that you have two parallel lines and a transversal. Since the two lines are parallel, this allows alternate interior angles to form, i.e. <A and <B.

Since angle A and B are alternate interior angles, you can now set the two equal to each other.

So, in order to find out what x equals, you have to set the two equations equal to each other.

8x-10=3x+90

Next, solve the new equation.

8x-10=3x+90

Add 10 to both sides.

8x=3x+100

Subtract 3x from both sides.

5x=100

Divide both sides by 5 and you'll get your answer.

x=20

Now that you know what x equals, you can substitute it into the equation for B.

<B= 3(20)+90

60+90= 150

<B=150 degrees

That gives you your answer of <B = 150 degrees.

To check your work you can also substitute x into the equation for <A.

<A= 8(20)-10

160-10= 150

<A=150 degrees.

Therefore, you have just proved that the answer is 150 degrees.

Answer:125

Step-by-step explanation:

Answer:

The sample size required is 2500.

Step-by-step explanation:

z-score:

In function of the margin of error M, the z-score is given by:

[tex]Z = \frac{M}{\frac{\sigma}{\sqrt{n}}} = \frac{M\sqrt{n}}{\sigma}[/tex]

In this question, we have that:

[tex]\sigma = 51.02, M = 2, Z = 1.96[/tex]

So

[tex]Z = \frac{M\sqrt{n}}{\sigma}[/tex]

[tex]1.96 = \frac{2\sqrt{n}}{51.02}[/tex]

[tex]2\sqrt{n} = 51.02*1.96[/tex]

[tex]\sqrt{n} = \frac{51.02*1.96}{2}[/tex]

[tex](\sqrt{n})^2 = (\frac{51.02*1.96}{2})^2[/tex]

[tex]n = 2500[/tex]

The sample size required is 2500.

Answer:

exact form of n=3/2

decimal form of n=1.5

mixed number form of n= 1 1/2

Answer:

[tex]y - 20 = 24(x - 3)[/tex]

Step-by-step explanation:

Equation of a line:

The equation of a line, in point-slope form, has the following format:

[tex]y - y_0 = m(x - x_0)[/tex]

In which the point is [tex](x_0,y_0)[/tex] and the slope is m.

(3, 20)

This means that [tex]x_0 = 3, y_0 = 20[/tex]. So

[tex]y - y_0 = m(x - x_0)[/tex]

[tex]y - 20 = m(x - 3)[/tex]

Slope:

The slope is the derivative of the function at the point:

The function is:

[tex]y = x^3 - 3x + 2[/tex]

The derivative is:

[tex]y^{\prime}(x) = 3x^2 - 3[/tex]

At the point, we have that [tex]x = 3[/tex]. So

[tex]m = y^{\prime}(3) = 3*3^2 - 3 = 27 - 3 = 24[/tex]

So the equation to the tangent line to the curve a the point is:

[tex]y - 20 = 24(x - 3)[/tex]

Answer:

Let w be the width. Then the length is 2w-4. So:

w(2w-4)=96

2w²-4w-96=0

w²-2w-48=0

(w-8)(w+6)=0

w=8 or -6

Throwing out the negative value for w, we get a width of 8 yds, and a length of 12 yds. ☺☺☺☺

Answer:

Check pdf

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer: Well, my best guess would be: 1636 beans

apparently the average weight of a jellybean is 1.1 grams

1.8 kg is 1800 grams

1800 / 1.1 = around 1636

So it's around 1636 jelly beans ?

Answer:

$79.12

Step-by-step explanation:

0.54 x 172 = 92.88

172 - 92.88 = 79.12

He needs $79.12 more.

Bailey has saved 54% of the money he needs to buy a new

skateboard he needs $79.12 more.

We have given that,

Bailey has saved 54% of the money he needs to buy a new

a skateboard that costs $172.00.

We have to determine how much more money he needs to buy the skateboard.

What is the savings?

Saving is income not spent or deferred consumption. Methods of saving include putting money aside in, for example, a deposit account, a pension account, an investment fund, or cash. Saving also involves reducing expenditures, such as recurring costs.

0.54 x 172 = 92.88

172 - 92.88 = 79.12

He needs $79.12 more

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Answer:

3.05kilograms to grams

Answer: it’s graph D

:)