How many steel rods are in a staircase frame with 12 steps?

Answer:

$10 an hour

Step-by-step explanation:

You go to the one hour than go up to where the line is and find out what the number is  

Answer:

Step-by-step explanation:

Ok, so to solve this problem, you need to find the slope of the line. You know this is what you need to find because units for slope is the y-axis units (dollars) divided by the x-axis units (hours), and your answer must be in dollars per hour based on the question. To find your slope, you use the formula (y2-y1)/(x2-x1). Basically, pick any two points on the graph. I will use (2,20) and (4,40). Now, find the change in x (4 - 2, or 2) and the change in y (40 - 20, or 20) and divide the change in y by the change in x (20/2) to get your answer.

Answer:

5x, -2x, x

Step-by-step explanation:

Like terms have the same variable parts.

The variable part of 3x is x.

Any term that has only x as its variable part is a like term to 3x.

Answer: 5x, -2x, x

Answer:

160

Step-by-step explanation:

if girls is 6 and boys is 8

and there are 120 girls

120g= 6g * 20

meaning you multiply 8 by the same thing

160= 8b * 20

{\_/}

( >3<) - there

/ > >\

Answer:

y=-4(x+1)+3

Step-by-step explanation:

work in in the picture

Answer:

B

Step-by-step explanation:

Answer: Graph proportional relationships, interpreting the unit rate as the slope of the graph. Compare two different proportional relationships represented in different ways. For example, compare a distance-time graph to a distance-time equation to determine which of two moving objects has greater speed.

Step-by-step explanation:

Answer:

[tex]\huge\boxed{\frac{1}{2}}[/tex]

Step-by-step explanation:

In order to find the slope of a line, we need to find it’s rise over it’s run.

To do this, we need to find the change in y, and divide that by the change in x between any two given points.

[tex]\frac{\Delta y}{\Delta x}[/tex]

Two points on this graph that we can compare are are (-1, 3) and (1, 4).

From -1 to 1 is 2 points. So, the change in x is 2.

From 3 to 4 is 1 point. So, the change in y is 1.

Divide the change in y by the change in x:

[tex]1 \div 2 = \frac{1}{2}[/tex]

So the slope is 1/2.

Hope this helped!

Answer:

y = 6x - 9

General Formulas and Concepts:

Pre-Algebra

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Slope-Intercept Form: y = mx + b

Step-by-step explanation:

Step 1: Define

Point (4, 15)

Point (-1, -15)

Step 2: Find slope m

Step 3: Find y-intercept b

Step 4: Write linear equation

Substitute in all variables.

y = 6x - 9

And we have our answer!

Answer:

a. 121

b. 32100

c. 0.2

d. 400

Step-by-step explanation:

a. Quick disclaimer: If there's a decimal point on the divisor, in this case it would be .05, you have to move the decimal point until it has no decimal, in this case .05 would become 5.0 or just 5. The other number also has to have it's decimal point moved as much as the divisor, in this case two times, so it would be from 6.05 to 605. So with this in mind: 605/5 = 121

b. 96.3/.003 = 96300/3 = 32100

c. 0.12/0.6 = 1.2/6 = 0.2

d. 3.2/.008 = 3200/8 = 400

Answer:

1//18

Step-by-step explanation:

2/3 * 1/6= 1/18

You first do 2*1

Then 3*6

Answer: A. 1/9

Step-by-step explanation:

to find what fraction of all your books is historical fiction, you would multiply how the fraction of all your books that are fiction by the fraction of fictional books that are historical fiction.

this gives you 2/3 times 1/6.

from there you simply multiply the numerators (2x1=2)

and the denominators (3x6=18)

leaving you with 2/18

but that can be simplified, giving you the final answer of 1/9

Answer:

x<-72

The student divided by 6 instead of multiplying by 6

Step-by-step explanation:

Correct:

x÷6<-12

multiply each side by 6

x<-72

What the student did:

x÷6<-12

divide by 6

x÷6<-2

The student divided by 6 instead of multiplying.

Answer:

(-7,7)

Step-by-step explanation:

Answer:

15 blue marbles

Step-by-step explanation:

every 2 red marbles, 5 blue.

6/2=3             5x3=15

2 red      -      5 blue

4 red      -    10 blue

6 red      -     15 blue

Answer:

20×4=80

4×2×10=80

Step-by-step explanation:

To estimate the result of multiplication (product), round the numbers to some close numbers that you can easily multiply mentally.

One method of estimation is to round all factors to the biggest digit (place value) they have.

you need to round 24 to the nearest ten which is 20 and leave 4 as it is

Answer:

wdym

Step-by-step explanation:

3-44x

hope that helped if yes give me brainliest and if no draw my attention by hitting the comment section

Answer:

S = 10

Step-by-step explanation:

Proportion is 2:1

HOPE THIS HELPS

PLZZ MARK BRAINLIEST

Answer:

S = 10

Step-by-step explanation:

If they are congruent then 8 dived by 2 is 4.

To solve for S you reverse it,  5 times 2 is 10.

Answer:

The slope of the line is 3 and the y intercept is 6

Step-by-step explanation:

Trust me

Answer:

All options

Step-by-step explanation:

In each option, the left and right side of the equation are identical, meaning whatever values that [tex]x[/tex] take will result in the left and right side of the equation to be equal. This means that the equation will have infinitely many solutions.

Hope this helps :)

Answer:

First case;

α < 90°

The area of the shaded triangle = 1/8·a²·sin(60)sin(α)csc(120 - α)

Second case;

α > 90°

The shaded area of the triangle =  1/8·a²·sin(60)sin(180 - α)csc(60 - α) + (a²·√3)/4

Step-by-step explanation:

First case;

α < 90°

The given parameters are;

The type of triangle = Equilateral triangle

The length of the sides of the triangle = a

The area of the triangle = 1/2×a×b×sinC

Where;

a and b are two legs (sides) of the triangle and C is the included angle

e/(sin(α)) = a/(2sin(120 - α)) = f/(sin60)

f = a·sin(60)/(2sin(120 - α))

The area of the triangle = 1/2 × a·sin(60)/(2sin(120 - α))×a/2 × sin(α)

By an online application, we have

1/2 × a·sin(60)/(2sin(120 - α))×a/2 × sin(α) = 1/8·a²·sin(60)sin(α)csc(120 - α)

The area of the triangle = 1/8·a²·sin(60)sin(α)csc(120 - α)

Second case;

α > 90°

The shaded area of the triangle = The area of the equilateral triangle - The unshaded area of the triangle

With an online tool, we have;

The shaded area of the triangle = (a²·√3)/4 - 1/8·a²·sin(60)sin(180 - α)csc(120 - (180 - α)

The shaded area of the triangle =  1/8·a²·sin(60)sin(180 - α)csc(60 - α) + (a²·√3)/4

Answer:

The slope is -1/8 and the y intercept is 7/6

Step-by-step explanation:

This equation is in slope intercept form

y = mx+b where m is the slope and b is the y intercept

y = -1/8 x + 7/6

The slope is -1/8 and the y intercept is 7/6

Answer:

-10

Step-by-step explanation:

Answer:

1. 5.4

2. The additive inverse is the negative value, -10.

The multiplicative inverse (reciprocal) is 1/10.

Step-by-step explanation:

1. Since the value within the absolute value is not negative then the value remains the same.

2, The opposite of positive 10 could be -10. The reciprocal is 1/10.

Answer:

What is your story about It could be the exciting part of your story!

Step-by-step explanation:

Sedimentary rocks can be dated using radioactive carbon, but because carbon decays relatively quickly, this only works for rocks younger than about 50 thousand years. So in order to date most older fossils, scientists look for layers of igneous rock or volcanic ash above and below the fossil.

Answer:

Sedimentary rocks can be dated using radioactive carbon, but because carbon decays relatively quickly, this only works for rocks younger than about 50 thousand years. So in order to date most older fossils, scientists look for layers of igneous rock or volcanic ash above and below the fossil. can u mark mr brailest

Step-by-step explanation:

Answer:

11 months

Step-by-step explanation:

We know that Amy has a saving of $725 which she needs to make it up to $1000 by saving $25 each month.

This means that Amy needs to save $1000 - $725 = $275 more dollars to have exactly $1000 dollars.

If Amy saves $$25 each month, then the number of months that she needs to save money will be = 275 / 25 = 11 months

Answer:

2341

Step-by-step explanation:

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

The correct 4-digit code is 4321.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

From the picture.

We have to see the line from A, B, C, and D that touches the numbers given.

Now,

A touches the number 4

B touches the number 3

C touches the number 2

D touches the number 1

The 4-digit number must be written in the sequence of ABCD.

So,

4321 is our four-digit number.

Thus,

The correct 4-digit code is 4321.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ2