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4 years ago

Helppppp meeeeeeeee Explain how to evaluate

Mathematics

1 answer:

poizon [28]4 years ago

6 0

A variable is a letter, for example x, y or z, that represents an unspecified number.

6 + x = 12

To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12.

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Facts about Geometry and Geology?

larisa86 [58]

Step-by-step explanation:

Geometry is in maths

Geology is in geography..

I hope you understand..

7 0

3 years ago

Anne and Willow are reading the copy of the same magazine for an assignment.

Kamila [148]

Answer:

Page number 74

Step-by-step explanation:

Let

x ---> the number of days

y ---> the number of pages read

we know that

The linear equation in slope intercept form is equal to

$y=mx+b$

where

m is the slope

b is the y-intercept

we have

Anne

The slope is equal to

$m=20\ \frac{pages}{day}$

The y-intercept is equal to

$b=14\ pages$

substitute

$y=20x+14$ ----> equation A

Willow

The slope is equal to

$m=22\ \frac{pages}{day}$

The y-intercept is equal to

$b=8\ pages$

substitute

$y=22x+8$ ----> equation B

equate equation A and equation B

$22x+8=20x+14$

solve for x

$22x-20x=14-8\\2x=6\\x=3\ days$

Find the value of y

substitute the value of x in equation A or equation B

equation A

$y=20(3)+14=74\ pages$

equation B

$y=22(3)+8=74\ pages$

7 0

3 years ago

If I make $2000 a month, how much will I make per week?

Arisa [49]

Answer:

You would make about $500 per week

Step-by-step explanation:

There are about 4 weeks per month

2,000 ÷ 4 = 500

So ~ 500 per week

Hope this helped!

Have a supercalifragilisticexpialidocious day!

4 0

3 years ago

Read 2 more answers

Please solve this quick 8n+7=31

emmasim [6.3K]

Hello there!

To find the value of n, work to isolate it from all other terms in the equation.

8n+7=31 - Start by subtracting 7 from both sides. 8n + 7 - 7 = 31 - 7

8n = 24 Next, divide both sides by 8 to finish isolating n. 8n÷8 = 24÷8

n = 3

This is your final answer.

I hope this was helpful and have a great rest of your day!

6 0

4 years ago

Read 2 more answers

Identify the vertex point of the parabola. A) (1,-2) B) (5,3) C) (0,4) D) (3,0)

Helga [31]

Answer:

Step-by-step explanation: The vertex is where the curve of the parabola occurs. Pay attention to where the curve of the parabola exists, and write down its coordinates. Over here, the curve is on 3 of the x-axis, and the y-value is 0 because the curve is literally on the x-axis. Any point that is on the x-axis will have no y-value. Hence our answer is (3,0).

5 0

3 years ago