Mathematics High School

Joseph and Isabelle left Omyra’s house at the same time. Joseph jogged north at 8 kilometers per hour, while Isabelle rode her bike west at 12 kilometers per hour. Omyra tried to figure out how far apart they were after 1.5 hours. Her work is shown below. Which statements describe her errors? Check all that apply.

A right triangle. The distance north from Omyra's House is 8 kilometers, and the distance west is 12 kilometers.

8 squared + 12 squared = d squared. 64 + 24 = d squared. 88 = d squared. StartRoot 88 EndRoot = d. 9.4 almost-equals d.
She did not find the full distance each traveled in 1.5 hours. She should have used 12 km for Joseph’s distance and 18 km for Isabelle’s distance.
She did not square the 12 in the problem. She should have used 12 squared = 144.
She did not evaluate 8 squared correctly. She should have used 8 squared = 8 (2) = 16.
She did not evaluate StartRoot 88 EndRoot correctly. She should have used StartRoot 88 EndRoot almost-equals 44.
She should not have taken the square root of each side when solving. She should have just divided each side by 2.
She should not have added the squares in the first step. She should have used 12 squared minus 8 squared = d squared.

Answers

Answer 1

For this case the distance will be given by:

d ^ 2 = (12 * 1.5) ^ 2 + (8 * 1.5) ^ 2

Rewriting we have:

d ^ 2 = (18) ^ 2 + (12) ^ 2

d ^ 2 = 324 + 144

d ^ 2 = 468

d = root (468)

d = 21.63 Km

Answer:

1) She did not find the full distance each traveled in 1.5 hours.

2) She should have used 12 km for Joseph's distance and 18 km for Isabelle's distance.

Answer 2

Answer:

a and b

Step-by-step explanation:

Related Questions

A college’s tuition has risen 4% each year since 2015. If the tuition in 2015 was 30,000, write an equation for this amount of tuition t years after 2015.

Answers

Answer:

Step-by-step explanation:

y=3000(.04)^t should be the answer

please helpppp will make brainlyist

Answers

Answer:

74°?

Step-by-step explanation:

180° = 7x+26

x = 22°

Question 5 (1 point)
The letters that form the word MISSISSIPPI are placed in a bowl. What are the odds of choosing
a "P"? Expression your answer as a percentage, rounded to the whole number.
%

Answers

Answer:

18%

Step-by-step explanation:

MISSISSIPPI = 2/11 = 18.18~ = 18

Because there are 2P's and 11 letters in MISSISSIPPI.

The odds of choosing a P is 18%

A group of friends were working on a student film that had a budget of $1200. They spent all their budget on costumes and equipment. They used 33% of their budget on equipment. How much money did they spend on costumes?

Answers

Answer:

$804

Step-by-step explanation:

33%=0.33----Covert the percentage as a decimal.

0.33*1200=396----Multiply the decimal by the price of budget. This is the cost of equipment.

$1200-$396=$804----Subtract the cost of equipment ($396) by the cost of budget($1200). You get $804!

Hope this helped.

Answer:

804

Step-by-step explanation:

what the other person said

The measures of the angles of a quadrilateral in degrees are 70, 95, and 136. Determine the measure of the missing angle.

Answers

Answer:

let missing Angle be x

x+70+95+136=360 sum of interior angle of quadrilateral is 360

x+301=360

x=360-301=59°

therefore the measure of the missing angle is 59°

Which set of side lengths form a right triangle?


50 in., 48 in., 14 in.

53 m, 48 m, 24 m

3 ft, 6 ft, 5 ft

8 cm, 17 cm, 14 cm

Answers

Answer:

50 in. 48 in. 14 in.

Step-by-step explanation:

the length of a rectangle is 6 feet longer than its width the perimeter is less than 48 feet write a mathematical expression for the width of the rectangle

Answers

Answer:

288

Step-by-step explanation:

This for an assignment? I NEED HELP?

Answers

Answer: $6,400

Step-by-step explanation:

First, let's take the given numbers

Starts the account with $1600

Deposits $200 each week after opening it

25 weeks

We can't count the first week because it says "thereafter"

So we need to do 24x200

which is 4,800

Now we must add the original amount deposited and the amount of money added in 25 weeks

1,600+4,800

$6,400

What is the area, in square centimeters, of the figure below?
5.2 cm 7.6 cm
A. 9 cm?
B. 12.8 cm?
C. 19.76 cm?
D. 39.52 cm?

Answers

Answer: 39.52 cm

Step-by-step explanation: If you multiply 5.2 and 7.6 you would get 39.52 cm.

A digital music player has a retail price of 85$ the percent of markup is 140% what is the final price after the markup? (Show work)

Answers

Answer: $119

Step-by-step explanation:

Let's take this equation

85(n)

n will equal 1.40 as the price mark up is 140%

85(1.40)

$119

Diana took $25.25 to the movies. Each ticket into the movie costs x dollars. Diana bought 5 tickets. Which expression represents the amount of money, in dollars, that Diana had after she bought the tickets?

Answers

Answer:

x = 5 (i think)

so diana would have $0.25 left

HELP PLEASE , I NEED THIS DUE IN 10 MINUTES AND IM SO CONFUSED

Answers

Answer:

p+37 = 2p-50

87

m<I=124

Step-by-step explanation:

How many deli sandwiches did she make?
Please help me.

Answers

Answer: 6 sandwiches

Step-by-step explanation:

To get the amount of roast beef that Marissa used you would have to subtract 2 3/4 from 5...which is 2.25 pounds of beef that she used.

Then you would divide 2.25 by 3/8 which is 6... meaning Marisa made 6 sandwiches!

PLEASE HELP DUE AT MIDNIGHT

Answers

I am pretty sure the answer is 60 degrees. Have a great day!
I think it’s what the other person said ..

2x + 3y = 16
3x + 4y = 22

System of Equations

Answers

Answer:

x=2, y=4. (2, 4).

Step-by-step explanation:

2x+3y=16

3x+4y=22

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

3(2x+3y)=3(16)

-2(3x+4y)=-2(22)

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

6x+9y=48

-6x-8y=-44

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

y=4

2x+3(4)=16

2x+12=16

2x=16-12

2x=4

x=4/2

x=2

the sum of three consecutive odd numbes is 57 what are the three numbers​

Answers

Answer: 17, 19, and 21

I think these are correct, hope it helps!

11. A surveyor is 100 meters from a bridge. The angle of elevation to the top of the bridge is 35º. The
surveyor's instrument is 1.45 meters above the ground. Find the height of the bridge.

Answers

Answer:

The height of the bridge is 71.47 m.

Step-by-step explanation:

Since the eye of the surveyor is 1.45m creating the horizontal distance, we must add the 1.45 m to the 70.02 m to determine the total height of the bridge.

70.02 m + 1.45 m = 71.47 m

The height of the bridge is 71.47 m.

A line is drawn on a coordinate grid by the equation y = 4. Which of the following lines would represent a row parallel to it?

A. A line containing the point (6, 4)

B. x = 4


C. y = 0

D. x = 6

Answers

Answer:

y=0

Step-by-step explanation:

bc if you graph y=0 its parallel to y=4

pls help i beg u pls

Answers

The equation that models this relationship is y = 3x + 2.

can someone help me please??!?!

Answers

sorry no answer just wanted to say your pfp is hot

If anyone can help I would really appreciate it!

Answers

Answer: y= 2/5 * x - 6

Step-by-step explanation:

y intercept

y= 2/5 x+b putting in the point 5,4

y=2/5 5+ b

4=10+b

b= -6

At an advertising agency that employs 256 people, 113 employees receive 2 weeks of paid vacation each year. What is the ratio of those who receive 2 weeks of paid vacation to the total number employees?

Answers

Answer: 113  : 256

Step-by-step explanation:

There are 113 people to receive a paid vacation every year against a total number of 256 employees.

The ratio is therefore:

113  : 256

113 is a prime number so this is the lowest form this ratio can take.

find the equation that represents the proportional relationship between in this graph

Answers

Answer:

y = 7/8x

Step-by-step explanation:

...................

How would you limit the domain to
make this function one to one?
f(x) = x2 - 7

Answers

How would you limit the domain to make this function one to one? f(x) = x4 Your answer will be the point to which you would limit the function. So if you would restrict the domain to either all x values greater than or equal to two or all x values less than or equal to two, you would simply enter 2.

Answer:

its 0

Step-by-step explanation:

Write a rule to describe this transformation (geometry)

Answers

Answer:

1 up and 1 to the side

Step-by-step explanation:

Someone please help me with this I need help ASAP

Answers

Answer:

I'm sorry i don't know this right here

Step-by-step explanation:

This is proportional, (Proportional means it has an equivalent ratio/constant rate of change/the same rate) y = 12x

Answers

Answer:

Hence, the equation is proportional.

Step-by-step explanation:

To test for proportionality ;

y = 12x

For a proportional relationship ;

y α x

y = kx ; where, k is the constant of proportionality.

From. The equation given

y = 12x ; 12 is thw proportionality constant.

There were 874 tickets sold for a school event. Student tickets were $3 and non-student
tickets were $7. If the total amount of ticket sales was $3,786, how many student
tickets were sold? (Use only the digits 0-9 to enter a number.)
This questions weird

Answers

Answer:

583 student tickets

Step-by-step explanation:

This question is likely asking us to set up a system of equations. Let us say that:

x represents the number of student tickets  

y represents the number of non-student tickets

We know that there were a total of 874 tickets sold, so:

x + y = 874

We also know that every student ticket was sold for $3 and every non-student ticket was sold for $7. We also know the total sales, so:

3x + 7y = 3786

These are our two equations. We can use substitution to solve for the number of student tickets, x:

x + y = 874

y = 874 - x

3x + 7y = 3786

3x + 7(874 - x) = 3786

3x + 6118 - 7x = 3786

-4x = -2332

x = 583 student tickets

PLZ PLZ I BEG U WILL MARK BRAINLIST Five pizzas cost $42.50. At that rate, how much will 16 pizzas cost? SHow Work

Answers

Answer:

$136

Step-by-step explanation:

$42.50 divided by 5= 8.5 per pizza

So you do 8.5x16 pizzas to get $136 for 16 pizzas.

Please Help me!!!

The question is:
Which graph shows the solution to y > x – 8?

Answers

Answer:

the answer is B

Step-by-step explanation:

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