Andrew and Katherine rode their bikes and met at a park.
Andrew’s house was 8 miles from the park, Katherine’s house was 5 miles from
the park. They each left their house at the same time and Andrew arrived 10
minutes after Katherine arrived. Katherine’s average speed was 2 mph slower
than Andrew’s average speed. {hint: UNITS matter!}
a. Write an equation to represent this data.
b. What was Andrew’s average speed?

Answers

Answer 1

Answer:

10 min = 1/6 hour

Now we make Andrew's average speed v mph so Katherine's average speed is (v-2) mph

a. 8/v - 5/v-2 = 1/6  [distance = speed x time]

b. 8/v - 5/v-2 = 1/6 , v > 2

   8/v - 5/v-2 = 1/6 = 0

48(v-2) -30v-v-(v-2)/6v(v-2) = 0 [transform the expression]

20v-96-v^2/6v(v-2) = 0

20v-96-v^2 = 0

(v-8)(v-12) = 0

{v1=8}

{v2=12}

Step-by-step explanation:

Andrew And Katherine Rode Their Bikes And Met At A Park.Andrews House Was 8 Miles From The Park, Katherines

Related Questions

Solve for the point of intersection using elimination.
5x+2y=3 3x-2y=5
please help me!

Answers

Answer:

5x+2y=3 3x-2y=5

7xy=3 xy=5

7xy+xy=3+5

6xy=8

Step-by-step explanation:

it's are the answers

Given that the statements

A
B
C


D
E
F
and

D
E
F


J
K
L
are true, which statement is a valid conclusion?

Answers

Answer:

it is triangle DEF, base on my own understanding

Help this is due today-

Answers

[tex] \bold{ \underline{Solution }}[/tex]

[tex] \bold{ \underline{ \underline{Given}}}[/tex]

y = 9 feet

[tex] \bold{to \: find}[/tex]

Volume of cube

[tex] \bold {\underline{lets \: begin}}[/tex]

[tex]y \: = 9 \: feet \: [/tex]

Volume of cube= (S)³

[tex] \sqrt[3]{9} \: = \sqrt[3]{9 \times 9 \times 9} \\ \\ \sqrt[3]{9} = 729[/tex]

so,, 729 is our final answer

▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃

if a number is multiplied by itself 3 then the obtained number is called cube of given number. x × x × x = x³ Thursday cube of a number is that number raised to power 3.volume of cube is side cube.

Hey there!

Your formula: a * a * a or you could simply say a^3


Your equation;

9^3

= 9 * 9 * 9

= 81 * 9

= 729


Therefore, your answer should be:

729


Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

A tank is 1/2 filled with water. some of the water is then poured into 8 small containers each with a capacity of 27 cubic centimeters. the tank is now 1.4 full. what is the capacity of the tank.

Answers

The capacity of the tank is 240 cm³.

What is capacity?

Capacity means the volume of a solid shape.

To calculate the capacity of the tank, we use the formula below.

Note: When the water from the 8 small containers is poured into the tank that was initially half full, becomes 1.4 full that means the water from the 8 small containers fills the tank 0.9

Formula:

V = (8×27)/0.9............... Equation 1

Where:

V = Volume or capacity of the tank

Solve for V

V = 240 cm³.

Hence, the capacity of the tank is 240 cm³.

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Will mark brainlist to whoever answers first
Find the coordinates of the image of J( 8,7 ) after a reflection over the x-axis.

Answers

Answer: A

Step-by-step explanation:

On a reflection through the x-axis, the x-coordinate of the point will not change, but the y-coordinate will be changed with a negative sign.

So, the reflection of the point is: (8, -7)

Therefore, Option(a)(8, -7) is true.

Awnser This Question to get 10pts!


Remember to say: 1. 2. (Beetween 1.) and 3.

Answers

Answer

Box (1) : 240Box (2) : 40Box (3) : 2632

Hope it helps

PLEASE HELP ME IM SO CONFUSED!!! i need answers 10-12

Answers

Answer: Heyaa! ~

   10. 8√2

   11. 2h²√3

   12. 2h³√5k⁴

Step-by-step explanation:

    - Lets solve it together!

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

Hopefully this helps you!

Last question!!! please solve this problem using the pythagorean theorem, and give me the right answer and I will give you brainliest. :)

Answers

[tex]\bold{ANSWER:}[/tex]
6.7 meters

[tex]\bold{SOLUTION:}[/tex]
Answer:   6.7

======================================================

Explanation:

Draw out a right triangle as you see below.

Let's use the pythagorean theorem to find 'a'

[tex]a^2 + b^2 = c^2\\\\a = \sqrt{c^2 - b^2}\\\\a = \sqrt{(9.9)^2 - (7.3)^2}\\\\a = \sqrt{44.72}\\\\a \approx 6.6873\\\\a \approx 6.7\\\\[/tex]

Which of the following is a closed statement?

A) yis not an odd number .

B) z is a positive number

D) x is an odd number .

D) 30 is an odd number .

Answers

Answer:

30 is an odd number

Step-by-step explanation:

hope it help

Question:

Which of the following is a closed statement?

Answer:

D) 30 is an odd number .

Step-by-step explanation:

#hope it helps!

Answered by ReyvREYV111

Please help me mi amor !!! I really need help

Answers

Step-by-step explanation:

it is really simple.

first of all, when 2 lines intersect (and we are talking straight lines, otherwise they are not lines in the mathematical sense), the angles created are the same in both sides of the lines (just left-right mirrored).

and secondly, the sum of all angles around a single point in one side of a line must be 180°, as the line can be considered the diameter of a circle, the point the center is the circle, and all the angles on one side are a half-circle.

so,

angle 3 = 37°

that means

angle 1 = 37° too

angle 2 is supplementary to e.g angle 3 (that means they both add up to 180° as explained above).

angle 2 = 180 - 37 = 143°

and angle 4 = 143° too

3/4 to decimal what the answer

Answers

Answer:

0.75

Step-by-step explanation:

4/4=1

3/4=0.75

2/4=1/2=0.5

1/4=0.25

3/4 to a decimal is 0.75. Think of quarters. 4 quarters equal $1. 1 quarter is equal to 0.25 cents
So 1/4 is 0.25
2/4 is 0.50
3/4 is 0.75
4/4 is 1
hope that helps

Does anybody know this? Need it done soon. Find the surface area. Use 3.14 for pi. Do not round your answer

Answers

Answer:

113.04 yd²

Step-by-step explanation:

The formula for finding the surface area of a cylinder is:

2πrh+2πr² r = radius, h=height

The radius of this cylinder is 2, so you replace the 'r' with '2.' The height is 7 yd, so you replace the 'h' with '7.' Use 3.14 for π.

2πrh+2πr²

2(3.14)(2)(7) + 2(3.14)(2)^2

= 113.04 yd²

Using the image above, what is the measure of Angle D? Round to the nearest hundredth

Answers

Answer:

57.1 degrees

Step-by-step=

32.9+90=122.9

180-122.9=57.1

On the map at the right, the public swimming pool can be represented by the point (-6, 5) and Tim’s house can be represented by the point (1, 5). If each unit on the graph represents 0.5 miles, how many miles is Tim’s house from the pool

Answers

The distance between the swimming pool and Tim's house is 3.5 miles.

How to find the distance?

First, we need to find the distance between the two points, and then we multiply that by 0.5 miles.

The distance between the points (-6, 5) and (1, 5) is:

[tex]d = \sqrt{(-6 - 1)^2 + (5 - 5)^2} = 7[/tex]

Now, changing to miles, we get:

d = 7*0.5mi = 3.5mi

So the distance is 3.5 miles

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Solve 11x 2y 2 + a = b for a

Answers

Answer:

a=b-44y

Step-by-step explanation:

a=b-44y

Here are some of the numbers that were picked out of the bag at bingo evening:

20 32 95 16 18 31 24 17

36. Which of these numbers is a square number?
37-38. Which of these numbers are prime numbers?

Answers

16 is a square number. 4x4=16.
31 and 17 are prime numbers because only 1 and that number can be multiplied to create that number.

A party favor is made up of four equal solids and is constructed from paper. each of the four solids is open at the end. the net represents one of the solids. a net of a solid has a square base with side lengths of 2 inches, and 4 triangular sides with a height of 3 inches. b is the base, and c, d, and a are the triangular sides. how much paper is needed to make a party favor? to calculate the surface area, you would exclude the area of face . one of the four pyramids has a surface area of in.2. one party favor, which consists of four of the equal solids, has a surface area of in.2.

Answers

The surface area of the solid is 4 + 6b

How to determine the area of the solid?

The solid consist of the following shapes:

1 square of length 2 inches4 triangles of height 3 inches and base b

The area of the solid is:

Area = Area of square + 4 * area of triangle

This gives

Area = 2 * 2 + 4 * 0.5 * 3 * b

Evaluate

Area = 4 + 6b

Hence, the surface area of the solid is 4 + 6b

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!PLEASE HELP!
Find the length of the missing side. Round your answer to the nearest tenth.

A) 2.4
B) 4.6
C) 5.4
D) 3.7

Answers

[tex]\bold{ANSWER:}[/tex]
C) 5.4

[tex]\bold{SOLUTION:}[/tex]

please help me I need assistance

Answers

[tex](\stackrel{x_1}{2}~,~\stackrel{y_1}{-15})\qquad (\stackrel{x_2}{14}~,~\stackrel{y_2}{r}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{r}-\stackrel{y1}{(-15)}}}{\underset{run} {\underset{x_2}{14}-\underset{x_1}{2}}}~~ = ~~\stackrel{\stackrel{m}{\downarrow }}{\cfrac{3}{4}}\implies \cfrac{r+15}{12}~~ = ~~\cfrac{3}{4}\implies r+15 = \cfrac{12\cdot 3}{4} \\\\\\ r+15=9\implies \boxed{r=-6}[/tex]

8x+5y=16 8x+10y=56 what strategy could you apply to use the linear combination method to solve the system?


Answers

Answer:

elimination

Step-by-step explanation:

What is the mean absolute deviation of 1, 2, 2, 3, 5, 6, 6, 8, 8, 9

Answers

Answer:

5

Step-by-step explanation:

1+2+2+3+5+6+6+8+8+9/10=5

Which side lengths form a right triangle?
(A) 1, 2, 3
(B) 5, 6, 7
(C) 3, 4, 5
(D) 4, 5, 6

Answers

b because 5,6,7 would form a right triangle

Please I'm serious no time for nonsense

Draw (3) Convex Polygons & (3) Non- polygons .​

Answers

Answer & step-by-step explanation:

Convex: Triangle, Square, Pentagon. (Has to be equal sided and angled)

Non-Convex: Draw a weird shape, such as a deformed star, a 5 sided shape with no equal sides, such as these listed below:

Convex polygons have vertices that all point outwards.
They do not need equal sides or symmetry but all regular polygons are convex.
The interior angles all need to be less than 180 degrees.

Non-convex polygons have one or more vertices pushed inside the shape.
The interior angle at those vertices will be greater than 180 degrees

can someone help me figure out how to solve this without a protractor or anything if possible? I have issues with focusing and i cant figure out the easiest way without a protractor; if it's even possible.

Answers

Answer:

C. Equilateral

Step-by-step explanation:

Every pair has equal angle

Answer:

A

Step-by-step explanation:

BECAUSE IT IS KIND OF ANGEL

Kevin correctly answered 75% of 32 test questions. How many more questions would Kevin have to answer correctly to get more than 80% correct?

Answers

Answer:

2

Step-by-step explanation:

0.75*32=24 is 75% of 32

0.8*32=25.6 is 80% of 32

you need to round to 26 as you cant get .6 of a mark

26-24=2

The annual salaries of all employees at a financial company are normally distributed with a mean Mu = $34,000 and a standard deviation Sigma = $4,000. What is the z-score of a company employee who makes an annual salary of $28,000?.

Answers

Answer:

see the attachment.

Answer:

C, -1.5

Step-by-step explanation:

edge

25. Find the area of the trapezoid. Leave your answer in simplest radical form. The figure is not
drawn to scale.
12 cm
6 cm
45
2 cm
084 cm²
96 cm²
72 cm²
108 cm²

Answers

The area of a the trapezoid given in the diagram is calculated as: B. 96 cm².

What is the Area of a Trapezoid?

Area of trapezoid = 1/2(a + b)h

Given the following:

a = 12 cmb = 12 + 2 + (6/tan 45) = 20 cmh = 6 cm

Area of the trapezoid = 1/2(12 + 20)6

Area of the trapezoid = 96 cm²

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0.78 / 10^6

please someone answer I need this answer soon

Answers

Answer:

0.00000078 is the answer to the question

Find the area of the triangle repost because no one answered last time

Answers

Check the picture below.

bear in mind that for a triangle, the height or "altitude" is the perpendicular distance from the top of the triangle to the base.

Please help! Giving brainliest!!!!
You deposit $1200 in an account that earns simple interest. After 42 months, the account earns $96.60 in interest. What is the annual interest rate
to the nearest tenth of a percent?
A. 0.8%
O B.2.3%
C.35.0%
D. 1.0%

Answers

Answer:

interest rate= interest earned multiply 100% then divide by the amount and time

R=I/Pt

I=96.60$, P=1200$, t=42/12=3.5

R= 96.60×100%/1200×3.5

=2.3%

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