I do not understand this at all, can someone please help me with the steps in each question

I Do Not Understand This At All, Can Someone Please Help Me With The Steps In Each Question

Answers

Answer 1

Answer:

285 min

275 min

chi

tie

Step-by-step explanation:

swim - 1.5 km

bicycle ride - 40 km

run - 10 km

1) Alexandra

swim time = distance / velocity = 1.5 / 5 = 0.3 hr = 18 min

transition 1 time = 4 min

cycling time = distance / velocity = 40 / 15 = 2.6666667 hr = 160 min

transition 2 time = 3 min

run time = distance / velocity = 10 / 6 = 1.6666667 hr = 100 min

so total time to complete the triathlon is

= 18 + 4 +160 + 3 +100

= 285 min = 4.75 hrs

2) Chi

swim time = distance / velocity = 1.5 / 6 = 0.25 hr = 15 min

transition 1 time = 5 min

cycling time = distance / velocity = 40 / 15 = 2.6666667 hr = 160 min

transition 2 time = 5 min

run time = distance / velocity = 10 / 7.5 = 1.3333333 hr = 80 min

got flat tire that took 10 min to fix

so total time to complete the triathlon is

= 15 + 5 + 160 + 5 + 80 + 10

= 275 min

3) Alexandra won the race by 10 min

4)even though chi got flat tire , chi still won the race by 10 min,

if it took 20min to fix flat tire both their times would be 285 min and it would have been a tie.


Related Questions

help me please !!!!

Answers

Answer:

graph X only

Step-by-step explanation:

because with the rate of change it makes a straight line

Please help me I will give best answer brainliest

Answers

Answer:

i would help but i can't understand that im sry

Step-by-step explanation:

3. /9.49 thanks

Answer:

4. search it you can find it

What is the value of X?

Answers

Step-by-step explanation:

16x + 3 = 115°

16x = 115 - 3

16x = 112

x = 112/16

x = 7°

Option → B

Which equation is the inverse of 2(x - 2)2 = 8(7 + y)?
O-2(x - 2)2 = -8(7 + y)
o y-2x2-x-6
O y=-2+28+4x
O y=2+28+4x

Answers

The answer to your question is D.

Can someone help? Show work

Answers

Answer: 21√10

Step-by-step explanation: its kinda hard to explain it but if you go to this website it will show you what you need to do step by step https://www.algebra.com/algebra/homework/Radicals/Radicals.faq.question.188343.html hope this helps

Jim wants to collect at least 25 coins for his coin collection. He has already collected 5 coins. The inequality shown can be used to fin n, the number of coins Jim still needs to collect.

n + 5 _> 25
Which inequality represents the solution set for this situation?

A. n _> 20
B. n _< 20
C. n _< 30
D. n _> 30

Answers

Answer:

Step-by-step explanation:

n _> 25 - 5

n _> 20

Answer:

n ≥ 20

Step-by-step explanation:

n + 5 ≥ 25

n + 5 − 5 ≥ 25 − 5

n ≥ 20

A two digit number is four times the sum and three times the product of its digit. Find the number.​

Answers

10 × 2 + 4 = 24. Hence, the required number is 24

Find the value of T……

Answers

The correct answer to that question is T = 12

4.2692 ÷ 0.13 pls i need help

Answers

Answer:

32.84

Step-by-step explanation:

dont know why you came here instead of using a calculator but yea.

Answer:

32.84

Step-by-step explanation:

ViperDrink
6 12-ounce cans for $2.19
or
Totally Soda
4 16-ounce bottles for $2.19

Answers

Answer:

6 12-ounce cans for $2.19

Step-by-step explanation:

when you multiply both by their respectable numbers then divide them by 2.19 you will get the numbers and whichever one is more is the better deal

The perimeter of the yard is 390 feet. The width of the yard is 5 feet less than the length.

Equation:
What is the length of the yard?
What is the width of the yard?
What is the area of the yard?

Answer in full


Answers

Answer:

Width: 95 ft

Length: 100 ft

Step-by-step explanation:

Width: x

Length x+5

2x + 2(x+5) = 390 ft

2x + 2x + 10 = 390

4x = 390 - 10

x = 380/4

x = 95

Bruce spent $30 on lunch. If he had $55 in his wallet, what percent of this money did he spend on lunch?

(PERSON WHO EXPLAINS THE BEST AND ANSWERS CORRECTLY GETS MARKED BRAINLIEST)

Answers

Bruce used about 54.5% of his money (or 55% rounded up) on his lunch. In order to get the 54.5% you would need to divide the amount he spent by the amount he had.

30/55= 54.5

Select the correct answer.
What is ?

A.

B.

C.

D.

Answers

Answer:

b

Step-by-step explanation:

Answer:

b4/3

Step-by-step explanation:

sue spent $8 on a shirt $39 on a jacket and $12 on a hat how much did she spend?

Answers

Answer:

$59 was spent

Step-by-step explanation:

8 + 39 + 12 = 59

Which means $59 was spent

The temperature which is 5 ° C below -2 ° C is

Answers

Answer:

-7 celsius degrees

Answer:

-7 ° C

Step-by-step explanation:

The temperature -2 ° C is your starting or reference point.  Subtracting 5 ° C results in a new temperature which is 5 ° C below -2 ° C:

   -2 ° C

-  (  5 ° C)

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

    -7 ° C    (answer)

In mathematics we like to write expressions concisely. For example, we will often

write the expression 5 × 5 × 5 × 5 as 54. The lower number 5 is called the base,

the raised 4 is called the exponent, and the whole expression 54 is called a power.

So 53 means 5 × 5 × 5 and is equal to 125.

What are the last three digits in the integer equal to 5 to the power of 2020?

Answers

25

Step-by-step explanation:

because 5^6=78125

Check FUNDRAISER The international club raised $1200 to buy livestock for a

community in a different part of the world. The club can buy an alpaca

for $160 and a sheep for $120. If the club wants to donate at least 8

animals, determine the system of inequalities to represent the situation.​

Answers

Answer:

Answer is 97..

Mark me brainliest pls!!!

The system of inequalities to represent the situation is as follows:

160x + 120y ≤ 1200

x + y ≥ 8

The international club raised $1200 to buy livestock for a  community. The club buy an alpaca for $160 and a sheep for $120.

let

x = number of alpaca

y = number of sheep

Therefore,

160x  + 120y ≤ 1200

The club wants to donate at least 8 animals,. Therefore,

x + y ≥ 8

The system of inequalities to represent the situation is as follows:

160x + 120y ≤ 1200x + y ≥ 8

learn more on inequalities here: https://brainly.com/question/24666773?referrer=searchResults

what is 5*2+4*6+10+123+(8)-1

Answers

Answer:

174

Step-by-step explanation:

(10)+(24)+10+123+7

=174

Answer:

174

Step-by-step explanation:

5⋅2+4⋅6+10+123+(8)−1

Multiply 5 and 2 to get 10. Multiply 4 and 6 = 24.

10+24+10+123+8−1

Add 10 and 24 =34.

34+10+123+8−1

Add 34 and 10 =44.

44+123+8−1

Add 44 and 123 =167.

167+8−1

Add 167 and 8 =175.

175−1

Subtract 1 from 175 = 174.

174

The vertices of a triangle are A(-1,1), B(-1,4), and C(-5,4). What are the
vertices of the image reflected across the line y=x? *
1
O A(-1,-1), B(-1,-4), and C(-5,-4)
O A(1,1), B(1,4), and C(5,4)
O A(1,-1), B(4,-1), and C(4-5)
O A(-1,1), B(-4,1), and C(-4,5)

Answers

Answer:

A(1,-1), B(4,-1) and C(4, -5)

Step-by-step explanation:

Type the integer that makes the following addition sentence true:

___ + 9 = 4

Answers

Answer:

answer is -5

Step-by-step explanation:

-5+9=4

Answer:-5

Step-by-step explanation: -5 -4 -3 -2 -1 1 2 3 4 = 9]

Grandma is planning to host Thanksgiving this year. She recently bought a new table and needs to make sure everyone will fit around it. The perimeter of the table is 350 inches. Each of her fancy place settings is 30 inches wide, which includes a buffer zone so people do not hit elbows. How many people can she comfortably sit at this new table?

Answers

Answer:

about 15-20 people

Step-by-step explanation:

A $53 tennis racquet is on sale for 20% off the regular price. What is the discount? What is the sale price?

Answers

Answer:

hope it helps you...............

Answer:

Discount: $10.60  Price: $42.40

Step-by-step explanation:

Since 20% just means 1/5, you can divide the original price by 5 to find the discount and then just subtract the discount from the original price to find the discounted price.

Determine the rate of change between the points (-1,-1) and (1,-1).

Answers

Answer:

[tex]\displaystyle m = 0[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Coordinate Planes

Coordinates (x, y)Slope Formula: [tex]\displaystyle m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Step-by-step explanation:

*Note:

Rate of change is slope.

Step 1: Define

Identify.

Point (-1, -1)

Point (1, -1)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m.

Substitute in points [Slope Formula]:                                                              [tex]\displaystyle m = \frac{-1 + 1}{1 + 1}[/tex][Order of Operations] Simplify:                                                                        [tex]\displaystyle m = \frac{0}{2}[/tex]Simplify:                                                                                                             [tex]\displaystyle m = 0[/tex]

Which expression is not equivalent to 3 ∙ S ∙ R?

A) 3 + S + R

B) 3SR

C) 3RS

Answers

Answer:

A) 3 + S + R

Step-by-step explanation:

if all multiplied together, they may be placed directly next to one another

if you like my answer, please mark me brainliest !! thanks !!

Austin earns $9.75 an hour at a part-time job, and earns $12 each time mowing lawns in the neighborhood. They graph the amount of hours worked at the part-time job (X) and the number of lawns mowed (Y) to determine how to earn more than $300. Which type of boundary line should be used in the graph?HELP!

Answers

Answer:

$7.25 at part-time job

$9.00 every time lawn mowed  

       so he would get 33.33 day so we will just say 33 times to get 300 dollars if he gets $9 for mowing.  And 41.37  hours to get $300 and he would have to use x and y graph to find the boundary line.

Step-by-step explanation:

Linear programming is a mathematical method that is used to determine the best possible outcome or solution from a given set of parameters or list of requirements,

Here, graph is attached in which boundary line is shown to earn more than $300 .

Let us consider that, Austin spend x hours in part time job and y times in mowing lawns.

Since, Austin earns $9.75 an hour at a part-time job,

In x hours, Austin earns = 9.75 x

Since, Austin also  earns $12 each time mowing lawns

So, if he mowing lawns y times. he earns = 12y

Total earning = 9.75x + 12y

Since, Austin Austin wants to earn more than $300

Therefore,  9.75x + 12y > 300

Thus, boundary line for above equation shown in attached graph.

Learn more:

https://brainly.com/question/21939581

The current population of a town is 32,000 and town officials estimate that the population will continue to grow by 900 every year.​

Answers

Answer:

Ok, so when the years go by you add 900 to the number you have. Sorry if that's not the answer your looking for, your question is cut off.

Hope this helps!

Year one of counting: 32,900

year 2: 33,800

year 3: 34,700,

so on and so forth.

solve the variables ​

Answers

X down Y up z stay
Hope i help

Choose a rational function with a removable discontinuity. A f(x)=x+1x+2f\left(x\right)=\frac{x+1}{x+2}f(x)= x+2 x+1 ​ B g(x)=xx2g\left(x\right)=\frac{x}{x^2}g(x)= x 2 x ​ C h(x)=2x2−2x+1h\left(x\right)=\frac{2}{x^2-2x+1}h(x)= x 2 −2x+1 2 ​ D j(x)=2xx2−1j\left(x\right)=\frac{2x}{x^2-1}j(x)= x 2 −1 2x ​

Answers

Answer:

ok i forgot answer but i think its 1 + 1 = 49e+02848923589 ye

Step-by-step explanation:

EXPERTS WHERE YALL AT?
1. 7s - 3b + 8 - 4, when s=7 and b=4
2. 6r - 10/r , when r=5 and z=3
3. 3c² + d³, when c = 1 and d=2
4. 5x², when x = 3

Answers

Answer:

Substitute each of the values into the expression.

1. 7(7)-3(4)+8-4

  49-12+8-4

  41

2. 6(5)-10/5

   30-2

   28

3. 3(1)^2+2^3

   3(1)+8

   11

4. 5(3)^2

   5(9)

   45

:)

Here is a linear equation: y = 1/4x + 5/4 Are (1. 1.5) and (12.4) solutions to the equation? Select the correct choice

A. Neither (1,1.5) and (12,4) are solutions to the equation.

B. (1,1.5) is a solution to the equation, but (12,4) is not.

C. (12,4) is a solution to the equation, but (1,1.5) is not.

D. Bath (1,1.5) and (12,4) are solutions to the equation.​

Answers

Answer:

Step-by-step explanation:

It’s D

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