Mathematics High School

1. Camilla won $150 in a drawing contest. She spent 5/8 art supplies. How much money does she have left?
A $56.25
B $68.75
C $93.75
D $131.25

2. Kelly paid a one-time membership fee of $56.80 when joining a gym, and since then she has been paying $22.70 per month. So far she has paid the gym $374.60. For how many months has Kelly been a member of the gym?

3. The 20 students in Ms. Wilson's art class made a project with construction paper. Nine students used red construction paper, 5 students used green construction paper, and the rest of the students used blue construction paper. If Ms. Wilson chooses one project at random, what is the probability that it Will be blue?

4. The battery on Sarah's old cömputer can last for 3 3/4 hours. She bought a new computer that has a battery that can last 20% longer. How long can the battery on Sarah's new computer last?

5.Kendra needs to buy a window shade to cover a window in her living room. She measured the width of the window shade as 68 inches. The actual measurement is 72 inches. What is Kendra's percent error? Round your answer to the nearest tenth.

6. Kyle bought a sofa for d dollars and paid an 8% sales tax. Write two different expressions that represent the total number of dollars, including tax, that Kyle spent, and show or explain why the expressions are equivalent.

7. Michael and Nadia are on their school(s swim team. They each swam 5 laps and recorded their lap times in seconds.
Michael's Lap Times (seconds) 42, 43, 45, 4.7, 48
Nadia's Lap Times (seconds) 36, 37, 46, 50, 51
Who has the greater mean absolute deviation, and by how much? Show or explain how you know.

Answers

Answer 1

Answer:

#1

150*(1 - 5/8) = 150(3/8) = 56.25Option A

#2

56.80 + 22.70x = 374.6022.7x = 374.60 - 56.8022.7x = 317.8x = 317.8/22.7x = 14 months

#3

Blue = 20 - (9 + 5) = 6p(blue) = 6/20 = 0.3 or 30%

#4

3 3/4 + 20% of 3 3/4 =3 3/4*1.2 = 15/4 * 12/10 =9/2 = 4.5 hr

#5

Actual value = 72 in, expected value = 68 in

Error = 72 - 68 = 4 inPercent error = error/ expected value * 100% = 4/68*100% = 5.9% (rounded)

#6

d  + 8% = d + 0.08d = 1.08dd*1.08 = 1.08d

#7

Michael

Data = 42, 43, 45, 4.7, 48Mean = (42+ 43+ 45+ 47+ 48) / 5 = 45Absolute deviation = (|42 - 45| + |43 - 45| + |45 - 45| + |47 -45| + |48 - 45|)/5 = 2

Nadia

Data = 36, 37, 46, 50, 51Mean = (36+ 37+ 46+ 50+ 51)/5 = 44Absolute  deviation = (|36 - 44| + |37 - 44| + |46 - 44|+ |50 -44| + |51 - 44|)/5= 6

Nadia had greater mean absolute deviation: 6 - 2 = 4 (seconds)

Related Questions

Graph + > -1.
+
3
-5
+
4 5
-4
-3
-2
-1
0
1
2
Switch direction
Make circle open

Answers

You have the right idea but the endpoint is at the wrong location. Instead, the green dot should go at -1. The shading is to the right. We use a closed filled in circle here (instead of an open hole) to tell the reader "include the endpoint". So -1 is part of the solution set.

In short, the graph consists of a closed filled in circle at -1 with shading to the right. This visually describes all values that are larger than -1, or equal to -1.

the actor is 10

your welcome

1 p
1.) On Tuesday at lunchtime, it was 29°C. By sunset, the temperature had
dropped to 16°C. How much did the temperature change by?

Answers

Answer:

Expression is; 29 - x = 16

Step-by-step explanation:

 

I've attached an image showing the number line

Step-by-step explanation:

We are told that at lunchtime, it was 29 degrees Celsius and that by sunset, the temperature had dropped to 16 degrees Celsius.

Let the drop be x.

Thus;

29 - x = 16

I've attached an image showing the number line

solve for x please i will love you for the rest of my life

Answers

Answer:

1) x = 14

2) x = 25

Step-by-step explanation:

1)

3x - 2 + 50 = 90

3x + 48 = 90

3x = 42

x = 14

2)

4x + 2 + 78 = 180

4x + 80 = 180

4x = 100

x = 25


Describe the pattern, write the next term, and write a rule for the nth term of the sequence,

-15,-24,-33,-42

Please show work

Answers

Step-by-step explanation:

Next term is - 51

Use formula Tn=a+(n-1)d

a=the first term of the sequence which is - 15

d=the difference between the terms which is - 9

Substitute

Tn=-15+(n-1)(-9)

Tn=-15+9-9n

Tn=-9n-6

From this you will be able to generate all the terms in the pattern

If they say determine the 50th term just substitute 50 by n

Tn=-9(50)-6

Tn=-450-6

Tn=-456

What are some real-world scenarios for the Pythagorean theorem?

Answers

Answer:

There are loads, but for example you can find the diagonal from a lamppost the the end of its shadow if you know the height of the post and the length of the shadow.

Hope I helped x

54 divided by 7 is???

Answers

Solution:-

[tex] \implies \sf \boxed{ \sf7.71}[/tex]

The remainder is 5 when 54 is divided by 7.

What is Division?

Division in mathematics is the process of dividing an amount into equal parts. For instance, we may split a group of 20 people into four groups of 5, five groups of 4, and so on.

Given:

We have to divide 54 by 7.

So, the division is

                            7 | 54 | 7

                                  49

                              -_____

                                     5

Then, the remainder is 5 because we do not have number further and 5 is smaller than divisor.

Learn more about Division here:

brainly.com/question/21416852

#SPJ5

Jonas wants to paint the walls of his bedroom and the
ceiling. The dimensions of his room are 7 feet by 12 feet
by 8 feet
What statements about calculating the surface area of
the walls to be painted are correct? Select all that
apply.
Include the areas of all six faces.
Include the areas of five faces.
7 ft
Include the areas of four faces.
The surface area that will be painted is 376 ft?.
The surface area that will be painted is 472 ft2.
8 ft
12 ft

Answers

Answer:

Include the areas of five faces.

The surface area that will be painted is 376 ft2.

Step-by-step explanation:

Answer:

Include the areas of five faces

The surface area that will be painted is 376 ft2.

2 and 4

eu preciso de ajuda pfvr:(

Answers

I’m not a true percent sure but I think it’s C

will give brainliest: how do i solve this??

Answers

Answer:

Step-by-step explanation:

-y = -5x + 7

y = 5x - 7

perp.: -1/5

y - 2 = -1/5(x + 8)

y - 10/5 = -1/5x - 8/5

y = -1/5x + 2/5

c
D.
M=2 and P= (1,3)
which graph shows a line with siope that passes through point P A. A B. B C. C D. D

Answers

Where’s the graph to evaluate where the slope passes

(10-x)(3x -9)=0

NEED HELP ASAP

Answers

Answer:

Step-by-step explanation:

Since the expressions are multiplied, for the product to equal zero, one term or another has to equal 0 because 0 times anything is zero.

(10-x)(3x-9)=0 when

10-x=0, x=10

3x-9=0, x=9/3=3

So there are two solutions when x=3 and x=10

Find the radius of a circle with a circumference of 94.25ft

Answers

Answer: approximately 15

Step-by-step explanation:

Answer:

radius = 5.48ft

Step-by-step explanation:

The formula for the circumference of a circle is: C = πr² or pie times the radius squared.

Now that we know this, we can plug in the equation.

94.25 = πr²

÷π         ÷π

30 = r²

√30 = √r²

5.48 = r

So, the radius of the circle is 5.48 ft

Is 1.4, 4.8, 5 a right triangle?

Answers

Answer:

Yes it is possible

Step-by-step explanation:

24 less than the number of snakes is 35.​

Answers

This doesn’t make sense..... elaborate

What value of x makes the equation − 1 3 x + 6 = − 6 + 2 3 x true?

Answers

Answer:

4

Step-by-step explanation:

i need help! please
domain range and end behavior of f(x)=1-x^2

Answers

Answer:

Here's a screenshot. Hope this helps

Answer:

i think

]-infinte,1[u]1,+infinte[

1.9h - 1.6 please help

Answers

Answer:

0.3h

Step-by-step explanation:

.3h I took the test I made a good grade

7,469.25 to the nearest cent

Answers

It already is to the nearest cent. 25 cents.

Answer:

0

Step-by-step explanation:

what is more ? 3 slices of a 12 inch pizza or 2 slices of a 14 inch pizza

Answers

3 slices of 12 inch pizza is more than 2 slices of 14 inch pizza.

125 is what percent of 200?


write as an equation pls

Answers

Answer:

160%

Step-by-step explanation:

Let the missing percentage be x%

We can also write that as x/100

According to the question,

[tex]125 \times \frac{x}{100} = 200 \\ 125x = 200 \times 100 \\ 125x = 20000 \\ x = \frac{20000}{125} \\ x = 160[/tex]

A jet pilot flew a distance of 3,311 mi in 5 hour and 30 min. Find the planes average rate of speed. Please Help me! I would really appreciate it if someone helped me as soon as possible. Can you also explain how you got your answer?

Answers

Answer: 602 miles

Step-by-step explanation:

The average rate of speed is calculated by the formula;

= Distance / Time

You need to convert the time into hours. Time is 5 hours 30 mins.

Convert those minutes to hours:

1 hour is 60 minutes so 30 minutes would be:

= 30 / 60

= 0.5 hours

Total time = 5 hours + 0.5 hours

= 5.5 hours

Now go back to speed equation:

Speed = 3,311 / 5.5

= 602 miles

(I forgot to place the picture) A local taxi company charges a base fare of $3.20. The taxi company charges $0.40 for every minute the taxi is in service.

Answers

Answer:

5 minutes costs 5.20 10 minutes cost 7.20 $20 gets you 42 minutes

Step-by-step explanation:

for 5 and 10 multiply the number of minutes by the price per minute then add 3.2 base fee.  5*.4=2 +3.2=5.2      10*.4=4 +3.2=7.2

For $20 subtract the 3.2 base fee (16.8) and divide that by the .4 a minute fee to get 42 which would be 42 minutes.

1 1/2 - 2/5 ÷ 4 2/5 × 3/4​

Answers

Answer:

1 19/44 (1.4318182)

Answer:

1 19/44

Step-by-step explanation:

It takes 9 hours for 8 men to paint a room.
How many men would be needed to paint the room in 4 hours?​

Answers

Answer:

4.5 just put 5

Step-by-step explanation:

9 divided by 8 = 1.125

1.125 × 4 = 4.5

These problems are so confusinggggggg

Answers

Answer:

C (both)

step by step explanation:

Answer:

C. Both (1, 11) and (-1, -5)

Step-by-step explanation:

y = 8x + 3

Substitute the values of (x, y)

(1, 11)

11 = 8*1 + 311 = 11yes

(-1, -5)

-5 = 8(-1) + 3-5 = -8 + 3-5 = -5 yes

Both pairs are solutions

Correct choice is C

PLEASEEEEE HELPPPPPO!!!!

Answers

Answer:

Search it

Step-by-step explanation:

Duh............................................................


Chloe is planning an event and purchasing floral arrangements. At Petals Plus, the arrangements cost $35.17 each, and the store
charges $67.00 for delivery of the flowers to the event site. At Blooms, the arrangements cost $25.03 each, and the store charges
$108.00 for delivery of the flowers to the event site.
How many arrangements should she purchase from Blooms in order to get a better value?
OA. 3
OB. 5
OC. 1
OD. 4

Answers

Answer: You would need at least 5 arrangements to make Blooms a better deal

Step-by-step explanation:

Petals Plus

y= 35.17x+67

Blooms

y= 25.03x+108

35.17x+67 =25.03x+108

10.14x= 41

x= 4.05

can someone help me plz ??

Answers

Answer: c

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

please right answers only xoxo

Answers

Answer:

Look below.

Step-by-step explanation:

A. First you look along the x-axis and then the y-axis to find coordinate A, doing this we could see that point A is (-3,-2)

B. Do the same for this question. Go along the x-axis to 3 and then go up 4 spaces along the y-axis, and mark an x to inicate that its their.

Answer:point a is at (-3,-2)

Step-by-step explanation:

389 / 106
Round off to the nearest whole number ​​

Answers

Answer:

thi is the answer 3.66981132

Step-by-step explanation:

u just divided it

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