Mathematics High School

A house costs $18,000, which is 9/10 the cost of a car. A motorcycle costs 1/5 the cost of the car, or 4/5 the cost of 100 cards. How much is the cost of 30 cards?
PLZ PLZ PLZ PLZ PLZ HELP!!!!!!!!!!!!!

Answers

Answer 1
$6750
The ratio of the cards is 4:5, or 18000:22500
22500/100 is 225
225 times 30 is 6750

Related Questions

Which graph represents a function

Answers

the correct answer is c

The expression 35000(0.87)^t describes the value of a car years after it has been purchased. Interpret the coefficients of the expression in the context of this situation.

Answers

Answer: 35,000 · 0.87t

Step-by-step explanation: A coefficient is multiplying


Which equation represents the relationship between the
number of pets Scott watches and his fees?

Answers

The slope is the change in y over change in x

Given the points (1,8), (2,11), (3,14), (2,17) we can use the table to figure out what our equation will be

Notice on the table as you go on the y term from 8 to 11 to 14 to 17 you are having a constant rate of change of 3. So that’s your change in y

On the left side which is your x, you are going up by 1 every time because it’s {1,2,3,4} So your change in x is 1

Your slope or m in y=mx+b can be found by using the following formula

Change in y/change in x

So here our change in y is 3 and our change in x is 1. So that means our slope is

m=3/1 = 3

y=3x+b

To find b, you can plug in one of the points. Let’s use (1,8). So x=1 and y=8. Now we can plug these in and solve for b.

8=3(1)+b

8=3+b

Subtracting 3 on both sides we have

b=5

Therefore given y=3x+(b) we can plug b in to obtain the following equation

y=3x+5. So that’s your answer

I hope this helps!!! Mark for brainliest!!!



"The product of a number and five is subtracted from 27." Which expression
represents this scenario?

Answers

Answer:

27 - 5n

Step-by-step explanation:

n times 5 (5n) - 27

I don’t understand this

Answers

It's 6x10+8x1+4×0.1 It's just going by place value!

what is the slope of (-8, -3) (-24, 1)

Answers

Answer:

(-16 , -4)

Step-by-step explanation:

you use rise over run

the rise is your y

the run is the x

[tex]\frac{y2-y1}{x2-x1}[/tex]⇒[tex]\frac{-3-1}{-24-(-8)}[/tex] =

[tex]\frac{-4}{-16}[/tex] or (-16, -4)

(x2 + x - 1) = (x - 1)

Answers

Answer:

x=0

Step-by-step explanation:

Easy 30 Points!!!!!!!A microscope shows you an image of an object that is 20 times the object's actual size. So, the
scale factor of the enlargement is 20. An insect has a body length of 2 millimeters. What is the
body length of the insect under the microscope?
40 centimeters
40 millimeters
4 millimeters
400 millimeters

Answers

Answer:

1

Step-by-step explanation:

Answer:

Keywords:

Microscope, scale factor, enlargement, actual length, length to scale

For this case we have a microscope that shows an enlargement scale of objects, 140 times the actual size. Given the actual length of an insect, we want to know the scale length shown by the microscope. So, we have the following equation:

If the insect has a , then:

Thus, the microscope will show the insect with a size of 840mm

Answer:

The body length of the insect under the microscope is 840mm

Option D

Step-by-step explanation:


Use the diagram at the right to determine x and y. AB and CD are
straight lines.


Name a pair of vertical angles:



Find the measure of

Answers

Answer:

x=30

y=52

verticle angles: AOC and DOB

Step-by-step explanation:

2(y – 4) + 4y = 11 + 3y

Answers

Answer:

y=-0.6

Step-by-step explanation:

I might be wrong but that's what I got.

Answer:

6  1/3 or 6.333333. . .

Step-by-step explanation:

Original Equation:

2(y - 4) + 4y = 11 + 3y

Use distributive property.

2 x y = 2y

2 x (-4) = -8

Plug these values back into the equation:

2y - 8 + 4y = 11 + 3y

Add 8 to both sides

2y + 4y = 19 + 3y

Add 2y and 4y together

6y = 19 + 3y

Subtract 3y from both sides

3y = 19

Divide both sides by 3

6.3333333333333333333. . . . .

6 1/3

Hope I helped :)

Please consider Brainliest :)

What is the constant in 2m + 3m - m

Answers

Answer:

-m is the constant

Step-by-step explanation:

Hope this helps and could you mark this brainliest

The work in a office takes 150 hours to complete every week
each person in the office works for 32 hours a week
what is the smallest number of people needed to complete the work​

Answers

You would need at least 5 people in the office.
150/32=4.6, but you cannot have 1/6 of a person so you would need to round up to 5 people.

You have 3 apples, 4 pears, 7 oranges, and 14 bananas. Your friend gives you 5 times that amount. Your other friend gives you 75 times more. (lots of fruit am i right) Your friend then takes half of it away. How much fruit do you have left?

Answers

Answer:

6384

Step-by-step explanation:

Since the question is only talking about fruit, I'm going to ignore which type and add the fruits together.

3+4+7+14=7+7+14=14*2=28

I have 28 fruits, and my friend give me 5 times that, so my friend gives me 5*28, or 140 fruits. So in all, I have 140 plus my original 28, or 168 all together

Then, my other friend gives me 75 times more. Wow. I don't think I've seen this many fruits all in one place, but this is the world of math, so who cares?

75*168=(70*168)+(5*168)=7000+4200+560+500+300+40=11760+840=

12600 fruits that your friend gives you. In addition to the 168 that you had before. Pardon my french, but why the ...

12600+168=12768 fruits at the height of your fruity domination.

Then, your friend takes half

12768/2=6384 fruits.

Question 4 of 25
True or false: f(x) is a function.
8
12
0
f(x)
A. True
Ο Ο
B. False

Answers

Answer:

true

Step-by-step explanation:

HURRY 10 min left!!! Consider the triangle. Which statement is true about the lengths of the sides? A. Each side has a different length. B. Two sides have the same length, which is less than the length of the third side. C. The three sides have the same length. D. The sum of the lengths of two sides is equal to the length of the third side.

Answers

Answer:

B. Two sides have the same length, which is less than the length of the third side.

Step-by-step explanation:

Find the diagram attached.

From the diagram, we can see that the triangle is right angled with two of its angles equal. This can also be an isosceles triangle. An isosceles triangle is a triangle that has two of its sides and angles equal.

Since two of the angles are the same, this means that two of its sides are also the same.

Let the two sides that are equal be 1. pythagoras theorem, the third sides will be expressed as;

d² = 1²+1² (true for a right angled triangle)

d² = 2

d = √2

d = 1.414

You can see that the length of the third side is greater than the other two sides.

Hence the correct option is B. Two sides have the same length, which is less than the length of the third side

Find the percent decrease round to the nearest percent from 93 Fahrenheit to 58 Fahrenheit the percent decrease is what percent

Answers

Answer:

38%

Step-by-step explanation:

Initial value = 93 FFinal value = 58 F

Decrease

93 - 58 = 35 F

Percent decrease

35/93*100% = 38 % rounded

pls help? i dont understand this.

Answers

Answer:

The answer is x=86

Step-by-step explanation:

1st set up an equation

104+(x-10)=180

2nd combine like term i.e, 104 and -10

94+×=180

3rd isolate x; you would do this by subtracting 94 on both sides of the equation

x=86

You're final answer is x=86

77÷ -11

20 points!!!!!

Answers

Answer:

7 time 11 is 77 so 77 divided by 11 is 7

Step-by-step explanation:

Answer:

It's -7

Step-by-step explanation:

Explain the difference between parallel and perpendicular lines in terms of their slopes. What form of equation of a line is easiest to determine slope?

Answers

Answer:

Parallel lines have the same slope, while perpendicular lines have completely opposite slopes. So a line has a slope of 2, a parallel line would have a slope of 2, and a perpendicular line would have a slope of -1/2. The easiest form to identify the slope is standard form because it shows the slope within the equation with out having to solve the equation or convert it into another form.

HELP FAST!!! PLZ!! I BEG YOU!!! I'LL GIVE BRAINLYEST!!! 10 POINTS!!!

The frequency table shows the results of drawing 20 cards from the bag of 100. There are an equal number of cards of each color in the bag. Which color has the same frequency as the distribution of colors in the bag?

(I caint take a screen shot, so im going to try and recreate it)

COLOR FREQUENCY
Blue 4
Red 3
White 5
Yellow 8

A. white
B. red
C. yellow
D. blue

Answers

Answer:

white

Step-by-step explanation:

If triangle A(0,-1), B(0,3), C(3,-2) is rotated at 90 degrees CCW about the origin, what are the new coordinates

Answers

(x,y)—>(-y,x)
A’(1,0) B’(-3,0) C’(2,3)
Hope this helped :)

HELP!! I'll mark whoever answers brainliest. claire can run 20 miles in 95 minutes how many can she run in 285 minutes

Answers

Answer:

60

Step-by-step explanation:

285/95=3

3*20=60

Answer:

60

Step-by-step explanation:

i think not 100% sure

I need to solve 11-20 ASAP pls

Answers

In num 11 the upper level just next to 26x-3 is 36x-3 and the lower level just next to 36x-3 is 26x-3 In num 20 the lower level of v is 96degrees so they prove the paralysme

HELP ME PLEASE 40 POINTS

Answers

Answer: abd=50

Step-by-step explanation: bc angel 3 is 80 that means angel 2 is one hundred and abc is the same as angel tow because the two lines are so ABC is 100 and line segment BC is bisecting ABC so you divide ABC by two and get 50  

Which expression is the factored form of
X2-7x + 10?
O (x + 3)(x + 4)
O (x - 3)(x-4)
O (x-2)(x - 5)
O (x + 2)(x + 5)

Answers

Answer: It’s C on edge. Have a nice day :)

Step-by-step explanation:

Jin bought 4 markers for $7. How many markers can he buy for $21? (label your answer for full credit)

Answers

Answer:

The answer is 12 markers. 4 markers for $7. You multiply 7 x 3and you end up with 21

Step-by-step explanation:

Reflect the point (-7, -9) across the x-axis: Then
Reflect the point (-7, -9) across the y-axis:

Answers

Step-by-step explanation:

Reflecting across the x axis will result in a sign change for. the y component, therefore (-7,-9) becomes (-7,9)

Reflecting across the y axis will result in a sign change for the x component, therefore (-7,-9) becomes (7,-9)

Tina's Jack Russell weighed 19.5 pounds. This week, her dog weighed 21.8 pounds. Find the percent of change in the weight of her dog?

Answers

Answer:

90%

Step-by-step explanation:

19.5 divided by 21.8 = 0.89449541 = 0.89% or 0.9%

Which word describes the slope of the line?

Answers

Answer:

rate of change

Step-by-step explanation:

Answer:

"rise over run" or "rate of change"

Step-by-step explanation:

"Slope" itself is "rise over run", or how quickly the line moves up or down relative to the x-axis as the value of x changes.

A gradient is really just another name for slope, not a description OF a slope.

Calculate the average speed of a boat that travels 600 meters in 40 seconds.

Answers

Answer:

15 meters in 1 second

Step-by-step explanation:

Divide 600 by 40 which is 15

so it travels 15 meters in 1 second

hope this helps!

Answer:15 meters per second

Step-by-step explanation:

600/40= 15

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