Please explain your answer!

To find the rate of change, find the difference of people at the park at each given hour and divide that by the total number of hours in the given time frame.

Early Time interval:

Hour 1 there was 55 people.

Hour 3 there was 135 people.

The rate of change is 135 - 55 / 3-1 = 80/2 = 40 people per hour.

Late time interval:

Hour 3 had 135 people.

Hour 5 had 175 people.

The rate of change is 175 - 135 / 5-3 = 40/2 = 20 people per hour

20 is less than 40, so the late time interval had the smallest rate change.

Answer:71.4

Step-by-step explanation:

Answer:

r = 4b + 3

Step-by-step explanation:

As b is the independent variable, r must be the dependent variable which should be on the left by itself in function notation.

Rearranging 16b = 4r - 12

4r = 16b + 12

r = 4b + 3

Answer:

r = 4b + 3

Step-by-step explanation:

given equation 16b = 4r - 12

in function notation, dependent variable should be on the right n independent variable appears on the left

16b + 12 = 4r - 12 +12

16b + 12 = 4r

flip left n right

4r = 16b + 12

divide by 4

r= 4b + 3

D. 8.2

ST = SD + DT . . . . . segment addition theorem

11.1 = 2.9 + DT . . . . substitute the given lengths

8.2 = DT . . . . . . . . subtract 2.9

The length of segment DT is 8.2 units.

Answer:8.2

Step-by-step explanation:

I got it right on edginuity

-57

We can collect terms to simplify the arithmetic.

... = a^3(6 +4 -8) +a^10(-1 +1) +a

... = 2a^3 +a

... = a(2a^2 +1)

For a = -3, this is

... -3(2(-3)² +1) = -3(2·9 +1)

... = -3·19 = -57

Answer:

x=5

y=10

Step-by-step explanation:

Answer:

BE:EC= 1/3

Step-by-step explanation:

Given ABCD is a parallelogram, Point K is such that it belongs to diagonal BD so that BK:DK=1:4.

If we make an extension of AK which meets BS at point E, then using ΔDKA and ΔEKB, we have

∠DKA=∠EKB (Vertically opposite angles)

∠KDA=∠KBE (Alternate interior angles)

∠DAK=∠BEK (Alternate interior angles)

Thus by AAA similarity,ΔDKA≅ΔEKB

⇒[tex]\frac{AD}{BE}[/tex]= [tex]\frac{DK}{BK}[/tex],

Since, AD= BC,therefore

[tex]\frac{AD}{BE}[/tex]= [tex]\frac{BC}{BE}[/tex]= [tex]\frac{4}{1}[/tex]

Now, BC= BE+EC, ⇒[tex]\frac{BE+EC}{BE}[/tex]= [tex]\frac{4}{1}[/tex]

⇒1+[tex]\frac{EC}{BE} = \frac{4}{1}[/tex]

⇒[tex]\frac{EC}{BE}= 3[/tex]

Reciprocating on both the sides, we get

[tex]\frac{BE}{BC} = \frac{1}{3}[/tex]

Answer:

x=1

Step-by-step explanation:

so just plug 1 in and you wil get it

Answer:

16

Step-by-step explanation:

6(2)+4

6 x 2=12

12+4=16

A. d = 5 − 15t; d = 18t

Derrick's distance from home is initially 5 miles and is decreasing at the rate of 15 miles per hour. His distance from home can be modeled by ...

... d = 5 - 15t . . . . . . d in miles; t in hours

Mark's distance from home is initially zero and is increasing at the rate of 18 miles per hour. His distance from home can be modeled by ...

... d = 18t . . . . . . . . . d in miles; t in hours

Together, these equations form the pair ...

_____

Comment on the equations

There is nothing in the problem statement or definition of the variables to suggest that one distance is measured in the same direction as the other, or that one value of d has any relationship to the other.

Usually, a "system of equations" expresses relationships among variables that all have the same definition with respect to some problem statement. Here, both values of d are "distance from home", but they don't necessarily have any relationship to each other. Their being the same value doesn't mean the boys have met, for example.

A. The dollar amout of the markup is found by multiplying the markup rate by the dollar cost. "24% of cost" means "24% × cost". Of course, you know that 24% = 24/100 = 0.24.

... markup = 0.24 × cost = 0.24 × $159 = $38.16

B. The markup is the amount added to the cost to get the selling price. It is the amount by which the cost is marked up.

... selling price = cost + markup = $159.00 +38.16 = $197.16

4/5

The question is asking you to find the ratio of Wednesday's time (2/3) to Tuesday's time (5/6). To do that, you divide the fractions:

... Wednesday / Tuesday = (2/3) / (5/6)

There are a couple of different methods you can use to divide fractions.

1. Invert the denominator and multiply.

When we invert 5/6, it becomes 6/5. So our division problem is now a multiplication problem:

... (2/3) × (6/5) = (2×6)/(3×5) = 12/15

This result can be reduced by removing a factor of 3 from numerator and denominator:

... Wednesday/Tuesday = 4/5

___

2. Make both fractions have the same denominator, then drop the denominators.

The denominators of the fractions in our ratio are 3 and 6. If we multiply 3 by 2, it becomes 6, so we can rewrite the numerator fraction as ...

... 2/3 = (2/3)×(2/2) = 4/6

Now, it has a denominator of 6 and our division problem is

... (2/3) / (5/6) = (4/6) / (5/6)

Dropping the (same) denominators gives ...

... Wednesday/Tuesday = 4/5

Check the picture below.

make sure your calculator is in Degree mode.

Option B (cos 29° and sin 61°) contains equivalent trigonometric values, as the angles are complementary and adhere to the identity sin(90° - x) = cos(x).

The question asks us to identify equivalent trigonometric values out of the given pairs. The equivalent values will have the same numerical value if their angles are complementary (i.e., they add up to 90°) because of the identity sin(90° - x) = cos(x). Considering this, let's evaluate the provided pairs:

A: sin 17° and cos 17° are not complementary, so they are not equivalent.

B: cos 29° and sin 61° are complementary (29° + 61° = 90°), hence equivalent.

C: sin 78° and cos 102° are not complementary, and 102° is greater than 90°, so they are not equivalent.

D: cos 83° and cos 7° are not complementary, but they are both cosines of different angles, so they are not equivalent.

Thus, the pair with equivalent trigonometric values is B: cos 29° and sin 61°.

19.5 inches

Let r represent the length of one of the sections of rope (in inches). Then the total length of the original rope is ...

... 8r +28.9 = 184.9

... 8r = 156 . . . . . . . . . . . . subtract 28.9; next, divide by 8

... 156/8 = r = 19.5

The length of each of the sections is 19.5 inches.

Answer:

81

Step-by-step explanation:

9girls x 9 boys to play each other

Answer:

Option d) 115 degrees

Step-by-step explanation:

We are given a trapezium ABDE in the picture.  AB and ED are the parallel sides.

F is the mid point of AE and C the midpoint of BD.  FC is joined.

We are also given that angle of AED = 65 degrees.

To find the measure of angle BAE.

Since sides AB and ED are parallel sides we find that AE is the transvesal intersecting the two parallel lines.

Hence by parallel lines axiom, the two interior angles namely Angle AED and BAE are supplementary.

i.e. 65 +angle BAE=180

Hence angle BAE = 115 degrees.

Option d is the answer.

Answer:

The equation would be y = -1/2x + 8

Step-by-step explanation:

To find the equation of the line, we start by find the slope. Perpendicular slopes have opposite and reciprocal slopes. since the original slope is 2, then the perpendicular slope is -1/2.

Now, using the point and the slope in point-slope form, we can find the equation.

y - y1 = m(x - x1)

y - 6 = -1/2(x - 4)

y - 6 = -1/2x + 2

y = -1/2x + 8

The equations that is perpendicular to y = 2x + 5 and passes through the point (4 , 6) is y = - 1/2 x + 8

For an equation to be perpendicular to the another line equation the product of there slope will be negative one. Therefore,

Therefore, the slope of  y = 2x + 5  is 2. The equation should have the following slope:

2m₂ = - 1

m₂ = -1 / 2

A linear equation is represented as follows:

m = slope

b = y-intercept

Therefore,

let use the point  (4 , 6) to find b

6 = - 1/2 (4) + b

6 = -2 + b

b = 6 + 2

b = 8

The equation will be as follows:

y = - 1/2 x + 8

read more; https://brainly.com/question/16236339?referrer=searchResults

Answer:

More students take French than take Spanish.

Step-by-step explanation:

Effectively, out of every 39 students taking French and/or Spanish, 19 of them take Spanish and 20 of them take French. The number of French students in that group is higher. (20 is more than 19)

Answer:

B) 9.2 g

Step-by-step explanation:

The balance measures only to 0.1 g.

So, the best measurement Hailey can make is to the nearest 0.1 g.

The most precise measurement she can make is 9.2 g.

The accuracy depends on the balance and on how carefully she  works.

Answer:

5/12

Step-by-step explanation: find common denominator

Answer:

C) 1/2(15 +23)(9)

Step-by-step explanation:

The formula for the area of a trapezoid in terms of base lengths b1 and b2 and height h is ...

... A = 1/2(b1 +b2)h

Substituting the values shown in the figure, this becomes ...

... A = 1/2(15 +23)(9) . . . . . matches selection C

Answer:

When she mixes the clay she now had 3/2 and 3/4 added would be 6/4 and 3/4 so she has 9/4 pounds of clay. If each student needs 1/8 and she had 18/8 that means she can make 18 students finish.

Please mark brainliest as that would help alot/

Step-by-step explanation:

Answer:

3:5

Step-by-step explanation:

We are looking for the ratio of baskets made to baskets attempted

made: attempted

9:15

We can divide each number by 3

9/3: 15/3

3:5

The ratio of baskets made: attempted  is 3:5

The ratio that describes the number of baskets made to the number of baskets attempted by the basketball player is 9 to 15, which simplifies to 3 to 5.

The question pertains to the ratio of successful basket attempts to total attempts made by a basketball player in a game.

In this case, the player successfully made 9 baskets out of 15 attempts.

To express this as a ratio, we simply compare the number of made baskets to the total attempts,

thus the ratio is 9 to 15, which can also be simplified by dividing both numbers by their greatest common divisor, which is 3, resulting in a simplified ratio of 3 to 5.

Answer:

136 miles

Step-by-step explanation:

The map distance is 3.4 times 2 cm, so the road distance will be 3.4 times 40 miles, or 136 miles.

12 units²

Counting half-squares around the perimeter of the rectangle, we find there are 10. Counting full squares inside the rectangle, we find there are 7. Then the total area is

... (1/2)·10 +7 = 12 square units

_____

Alternate calculation

The long side is the hypotenuse of a right triangle with legs 3, so has length 3√2. The short side is the hypotenuse of a right triangle with legs 2, so has length 2√2. The area is the product of these lengths, so is ...

.. area = (3√2)(2√2) = 6(√2)² = 6·2 = 12 . . . square units

Answer:

21

Step-by-step explanation:

Answer:

B) The potential energy of the rock is transformed into kinetic energy.

Step-by-step explanation:

Our understanding of Physics tells you the potential energy due to the rock's position in the gravitational field is transformed into kinetic energy as the rock gains speed (and loses height).

_____

Comment on the problem

There are additional effects not accounted for by this simplified answer, including thermal effects, radiation effects, and sound effects. (In this new age, there can also be energetic effects in dimensions we're not accustomed to considering, including emotional or other effects on—or due to—consciousness.)

Answer B)it goes from being still to moving

The sale price was 30% off the original price, which means it was on sale for 70% of the original cost ( 100% - 30% = 70%)

To find the original cost, divide the sale price by the percent of the original cost:

21 / 0.70 = 30

The original price was $30

check:

30 x 0.3 = 9 ( amount of discount)

30 - 9 = 21 ( sale price)

Final answer:

To find the original price of the sweatshirt that Zoe found, which was sold at a 30% discount, we use the sale price of $21 to calculate that the original price was $30 by dividing by 0.70. An example with sales tax involves an $85 jacket with 7.5% tax, where sales tax is rounded to $6.38 and added to the original price for a total of $91.38.

Explanation:

To determine the original cost of the sweatshirt that Zoe found, which was discounted by 30%, we need to work backwards from the sale price. The sale price represents 70% of the original cost since the item is 30% off. If the sale price is $21, we can set up the equation 0.70 * original price = $21 to find the original price.

Dividing both sides of the equation by 0.70 gives us the original price. Therefore, original price = $21 / 0.70. After performing this calculation, we find that the original cost of the sweatshirt was $30

Emily bought a jacket for $85. If the sales tax is 7.5%, the amount of sales tax would be calculated as 0.075 * $85, which equals $6.375. To get the total cost, we would round $6.375 to the nearest penny to get $6.38, and then add it to the original price of the jacket. The total cost is $85 + $6.38 = $91.38.

Answer:

[tex]\begin{array}{cccc}&\text{ Like fruit }&\text{ Do not like fruit }&\text{ Total }\\\text{Like vegetables}&11&1023&1034\\\text{Do not like vegetables}&44&33&77\\\text{Total}&55&1056&1111\end{array}[/tex]

Step-by-step explanation:

You are given such information:

Then 55 - 44 = 11 members like fruit and vegetables. Thus,

1111 - 55 - 33 = 1023 members like vegetables but not like fruit.

A two-way frequency table will take look

[tex]\begin{array}{cccc}&\text{ Like fruit }&\text{ Do not like fruit }&\text{ Total }\\\text{Like vegetables}&11&1023&1034\\\text{Do not like vegetables}&44&33&77\\\text{Total}&55&1056&1111\end{array}[/tex]

Nikita can organize her data into a two-way frequency table showing members' preferences for fruit and vegetables. The table identifies how many members like only fruit, only vegetables, both, or neither accordingly.

Nikita has the following data about her food club consisting of 1111 members:

We can organize this information into a two-way frequency table. Here are the steps:

Calculate the number of members who like both fruit and vegetables. Since 55 members like fruit, 44 like only fruit, and 33 like neither, we subtract the 44 members who like only fruit from the total 55 fruit-likers to find those who like both: 55 - 44 = 11.

Calculate the number of members who like vegetables only. The number of members who like either fruit or vegetables or both can be found by subtracting those who like neither from the total number of members: 1111 - 33 = 1078. We already know 55 like fruit, so those who like vegetables only: 1078 - 55 = 1023 (1111 total members - 33 neither - 55 fruit).

The two-way frequency table looks like this:

                           Fruit   No Fruit Total

Vegetables       11 1023 1034

No Vegetables 44 33          77

Total                 55 1056 1111