any help for math lesson

Any Help For Math Lesson

Answers

Answer 1

Answer:

12.5

Step-by-step explanation:

We can turn this into a cross - multiplication problem.

n / 7.5 = 25 / 15

All we have to do is cross multiply to get 15n = 7.5*25

As a result, we get 15n = 187.5

Divide by 15 on both sides to get 12.5

Double check

We can double check this answer by dividing 15/7.5 and 15/7.5, because ratios are the same if they are just multiplied versions of themselves

So, we get 2 for both answers, meaning that 12.5 is correct


Related Questions

If the radius of a circle is 9 cm, what is the area of the circle?

Answers

Answer:

option B

Step-by-step explanation:

In terms of π

Area =πr²

Area=π×9²cm

Area=81π sq cm

M(6.–8) is the midpoint of AB. The coordinates of point A are (1.–3).
What are the coordinates of B? Write your answer as an ordered pair in the form (x,y).

Answers

Answer:

(11, -13)

Step-by-step explanation:

(1 + x)/2 = 6

1 + x = 12

x = 11

(-3 + y)/2 = -8

-3 + y = -16

y = -13

CAN SOMEBODY PLEASE HELP ME?!
A line passes through point A(12,18). A second point on the line has an x-value that is 125% of the x-value of point A and a y-value that is 75% of the y-value of point A. Use point A to write an equation of the line in point-slope form.
PLEASE! PUT THIS IN POINT SLOPE FORM!

Answers

Answer:

y - 18 = -1.5(x - 12)

Step-by-step explanation:

A = (12, 18)

B=(1.25(12), 0.75(18)) = (15, 13.5)

 

Find slope:  m = (13.5-18)/(15-12) = (-4.5)/3 = -1.5

 

Point slope form:  y - y1 = m(x - x1)

Using point A as (x1, y1)

 

y - 18 = -1.5(x - 12)

What is the distance between -6 and 4 on a number line? Show your work.

Answers

Answer:

10

Step-by-step explanation:

First you add 6 to get to 0 on the number line. Then you add 4 to get to your final destination which is 4. You add them together to get 10.

complete the statement to describe the expression (a+b+c)(d+e+f).

the expression consists of ? factors, and each factor contains ? terms.​

Answers

Answers:

the expression consists of 2 factorseach factor has 3 terms

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

Explanation:

The two factors are (a+b+c) and (d+e+f). A factor is a part of multiplication. So in general if we multiply x and y, then x and y are factors to lead to the product x*y.

The expression a+b+c has three terms. Each term is separated by a plus sign.

The expression d+e+f also has three terms.

simplify the expression 6(y - 2)

Answers

Answer:

6y-12

Step-by-step explanation:

Answer:

6y-12

Step-by-step explanation:

6(y-2) = 6y - 12 by distributive property.

I hope this helped, please give brainliest if this is correct! Thank you!

Nori had 2 1/12 bags of apples. He used 1 5/12 bags of apples to make pies How many bags of apples does Nori has left

Answers

Answer:

3 1/2

Step-by-step explanation:

Answer is 8/12.

Mixed number Fraction:

A mixed number is formed by combining three parts: a whole number, a numerator, and a denominator. The numerator and denominator are part of the proper fraction that makes the mixed number.

(Here),

Nori had  [tex]2\frac{1}{12}[/tex] bags of apples.

Given, he used  [tex]1\frac{5}{12}[/tex] bags of apples.

Nori left =   [tex]2\frac{1}{12}[/tex]  -   [tex]1\frac{5}{12}[/tex]

=> (25 / 12) - (17 / 12)

=> 8 / 12 => (2 / 3)

Learn more about Mixed fractions here:

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Write an expression that represents h decreased by 5.

Answers

Answer: h - 5

Step-by-step explanation:

h decreased by 5

h - 5

I'm sorry TnT I don't really know how to explain this but I'm 100% sure my answer is correct. Hope it helped!

Answer:

see explanation

Step-by-step explanation:

h is decreased by 5

5-h

What is the value of (4-2)3-3x4

Answers

The answer is -4
Parenthesis is 2, cubed is 8
Multiply, gives you 12
8-12 = -4

Answer:

The answer is -4.

Step-by-step explanation:

It is -4 using the method of PEMDAS.  Subtract 4 and 2 together in the parentheses to get 2.  Multiply to the third root power to get 8.  Then, multiply -3 by 4 together to get -12.  Finally, subtract 12 from 8 to get -4 as your final answer.

Solve the Equation: 10 = 1(x-19)

Answers

Answer:

x=29

Step-by-step explanation:

1x-19=10

1x=29

because bhhahhyttttttt425566w x = 667 mONKKKYYY

MMMA


Uu667

write an equation of the line with a slope of 2 and y-intercept of 9 y=​

Answers

Answer:

[tex]y = 2x + 9[/tex]

Step-by-step explanation:

This is so because the slope of a line is the same as the gradient, hence m=2

And y-intercept is the same as c in the formula y=mx+c

Write the ratio 3/5 to 6 as a fraction in simplest form

Answers

Answer:

1/10

Step-by-step explanation:

To convert a ratio to a fraction, you divide the number on the left by the number on the right. This gets you (3/5)/6. When dividing fractions by whole numbers, you need to convert the whole number to a fraction. I converted 6 to 6/1, so that gave me (3/5)/(6/1). You then multiply the top number by the bottom number to get the numerator of the answer, and the middle 2 numbers multiplied is the denominator. The answer is (3x1)/(5x6), or 3/30, which can be simplified to 1/10.

Add the mixed number

Answers

Answer: 3 7/14 + 2 12/14 = 5 19/14

Step-by-step explanation:

Find the LCM of the denominator.

2 = 2, 4, 6, 8, 10, 12, 14, 16, 18, 20

7 = 7, 14, 21, 28, 35

3 1/2 = 3 7/14

2 6/7 = 2 12/14

3 7/14 + 2 12/14 = 5 19/14

Hope that helped!

Which statement describes a function that is not linear

Answers

Answer:

it would be A because if you repeat an x value it can cause it to be a a non-function

Reading and writing

Answers

Reading and Writing ✍

Please answer this correctly without making mistakes

Answers

Answer: without simplifying

12 cups 1 fluid ounces,

Step-by-step explanation:

graph the line with slope -3 and y-intercept 1.

Answers

To graph a linear equation in slope-intercept form, we can use the information given by that form.

Answer:

:)

Step-by-step explanation:


⚠️ANSWER NEEDED QUICK⚠️
*RIGHT ANSWER GETS BRAINLIEST*

Answers

Answer:

Try the third option

Step-by-step explanation:

Answer:

3rd one

Step-by-step explanation:

it just is lol

mary got the following scores in math: 56% 70% 65% 94% 64%. what is the mean(average) score?

Answers

Answer: 69.8

Explanation: The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.

56 + 70 + 65 + 94 + 64 = 349
349 divided by 5 = 69.8

plz help me i beg of uuuuuuuuu???

Answers

Answer:

7/4

Step-by-step explanation:

Which of the following numbers is not a factor of 432?

Answers

Answer:

Factors of 432 are 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216. There are 19 integers that are factors of 432. The biggest factor of 432 is 216.

Those are the factors of 432

Step-by-step explanation:

What is the value of p?

Answers

Step-by-step explanation:

a 43

hope it helps

your welcome

P is going to equal 180- the supplements of the given numbers
P = 180-(90+47)
P=180-137=43

What word describes the slopes of the line

Answers

Answer:

Positive

Step-by-step explanation:

There are a couple ways we can go about this.

First, we can see that as x increases, so does y, so that means its positive

For perspective, if x is the amount of time and y is the number of sales, we can see that the sales are going up and not going down or staying at the same place

If you wanna check your work on that, you can plot two points and find the slope using y1-y1/x1-x2 and the slope will be positive.

We can also use the process of elimination, we know it can't be zero because it's not a straight, horizontal line and we know its not undefined because it isn't a straight vertical line, so it's between negative and positive, and since the line is going up, that means that it's positive.

5. If m 6 = x, m 7 = x – 20, and m 11 = 80 then x =

Answers

Answer:

6

Step-by-step explanation:

Answer is there the value of this

help people if you ask what is the blurd number is 1/2​

Answers

Step-by-step explanation:

a) 2+ (3.5kg × number of week respectively) :*assuming 2kg collected for c tree is included

b) y=2+3.5x

c) (26.5kg-2kg)÷ 3.5kg= 7 weeks

d) ???

Write the equation for an ellipse with the center at the origin, a vertical major axis of length 30, and a horizontal minor axis of length 16.

Answers

Answer:

C

Step-by-step explanation:

hope that helps

Answer:

B

Step-by-step explanation:

a = 30    b = 16

x²/b² + y²/a² = 1

x²/16² + y²/30² = 1

x²/256 + y²/900 = 1

Write two different congruent statements that indicate the triangles in each pair are congruent( Odd number questions only)

Answers

Answer:

Step-by-step explanation:

17) HI ≅ UH   ;   GH  ≅  TU     ; GI  ≅ TH

ΔHGI  ≅ ΔUTH                by Side Side Side congruent

∠G  ≅  ∠T   ; GI  ≅  TH  ; ∠GIH  ≅ ∠THU

ΔHGI  ≅ ΔUTH                by Angel Side Angle congruent

19) IJ ≅ KD   ;  IK ≅ KC   ; KJ ≅ CD

ΔIJK ≅ ΔKDC             by Side Side Side congruent

∠J ≅ ∠D    ; IJ ≅ KD ;  ∠I ≅ ∠DKC

ΔIJK ≅ ΔKDC             by Angle Side Angle congruent

Which graph shows a proportional relationship between the number of hours of renting a snowboard and the total amount spent to rent the snowboard? (5 points)

Answers

Answer:

See the attachment.

Step-by-step explanation:

The line of a proportional graph always passes through the point of origin, (0, 0).

Also, a proportional graph is a straight line that do not bend.

Therefore, the graph that shows the proportion is the first graph. See attachement.

The local fitness center is running two different monthly payment options to attract new customers. The options are shown below.

What is the rate of change for the plans and at what number of visits would the plans cost the same amount?

Answers

Answer: The rate is increasing upwards, if that is what you were asking?

Step-by-step explanation: Let me know if you need anything else, please :)

The rate of change for payment option 1 is 1 and for payment option 2 is 0.25.

At 4th visit the cost of both the plans will be same.

What is the slope?

The slope is the rate of change of the y-axis with respect to the x-axis.

The equation of a line in slope-intercept form is y = mx + b, where

slope = m and y-intercept = b.

We know the greater the absolute value of a slope is the more steeper is its graph or the rate of change is large.

We know the slope m = (y₂ - y₁)/(x₂ - x₁).

Payment option 1 has two points (0, 2) and (2, 4).

Slope(m₁) = (4 - 2)/(2 - 0).

Slope(m₁) = 2/2

Slope(m₁) = 1.

4 = 2(1) + b.

b = 2.

y = x + 2.

Payment option 2 has,

$0.25 every visit is $(1/4) and it is the rate of change or the slope.

y = 0.25x + 5.

The number of visits when the cost will be equal is when we'll equate these two equations,

x + 2 = 0.25x + 5.

x - 0.25x = 5 - 2.

0.75x = 3.

x = 3/0.75.

x = 4.

At 4 visits the cost of each plan will be the same.

learn more about lines and slopes here :

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Q#1: Suppose that you have two different algorithms for solving a problem. To solve a problem of size n, the first algorithm uses exactly n*exp1-[n+2n+3n+4n]/nlne(10) operations and the second algorithm uses exactly n! operations. As n grows, which algorithm uses fewer operations?

Answers

Answer:

The one of -[n+2n+3n+4n]/nlne(10) has fewer operations because the value of n is static.

The one of n! ( factorial ) is factorised up to n∞ hence has infinity operations.

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