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3 years ago

Use a number line to add and subtract rational numbers. Someone plz help

Mathematics

2 answers:

SpyIntel [72]3 years ago

7 0

We need the question

kipiarov [429]3 years ago

6 0

Answer:

You would first need to draw a number line or print one out. Once you have a number line, you would put a dot on the number that you are supposed to subtract from or add to. After that, you would jump forward the amount of numbers you need to add or jump to the right with how many numbers you need to subtract.

Step-by-step explanation:

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As a contestant on a televised game show, Akash gets to spin the big prize wheel, which has a radius of 2 yards. What is the pri

ANTONII [103]

Answer:

4 yards. The radius is half the diameter of the circle and the length of one point of the circle to the center of the circle.

Step-by-step explanation:

3 0

3 years ago

Last question please

MatroZZZ [7]

Let's try an make a formula to make things easy.

_________________________________________________

Look at Andrew's pattern, it goes up 6 every time. Lets look at the 6 times table

6 times table: 6, 12, 18, 24, ...

____________________________________

First think, how would you work out the 7th term in the 6th times table?

You would do 6 times 7.

So the formula for the 6th times table is:

6n (where n is the term you want to find out)

_______________________________________

So to get the 9th term in the 6 times table, you would replace the n with 9, like so:

9th term in 6 times table = 6 x 9 = 54

______________________________________

Now lets compare the 6 times table to Andrew's pattern:

6 times table: 6, 12, 18, 24,

Andrew's pattern: 3, 9, 15, 21,

_____________________________________

If you look, you can see that Andrew's pattern is the 6 times table minus 3!

So what would be the formula for Andrew pattern?

---> it would be: 6n - 3 (since it's the 6 times table but minus 3)

_____________________________________

We can use this formula to easily work out the 20th term in Andrew's pattern!:

20th term = 6 x 20 - 3 = 120 - 3 = 117 (remember, replace the n with 20)

______________________________________

Now let's make a formula for Ben's pattern!

Ben's pattern goes up in 5s, so lets compare it to the 5 times table:

5 times table: 5, 10, 15, 20

Ben's pattern: 3, 8, 13, 18,

The formula for the 5 times table is 5n, and Ben's pattern is the 5 times table but minus 2.

So the formula for Ben's pattern is: 5n - 2

__________________________________

Now swap out the n for 20 (to get the 20th term):

20th term = 5 x 20 - 2 = 100 - 2 = 98

_________________________________________

So Andrew's 20th term is 117, and Ben's 20th term is 98.

All we do now is subtract them to find the difference:

117 - 98 = 19

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Answer:

Ben's 20th term is smaller by 19!

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5 0

3 years ago

What is the length of side s of the square shown below?

zaharov [31]

Answer:

$A.\: 4 \sqrt{2}$

Step-by-step explanation:

$\sin \: 45 \degree = \frac{s}{8} \\ \\ \implies \: \frac{1}{ \sqrt{2} } = \frac{s}{8} \\ \\ \implies \: s = \frac{8}{ \sqrt{2} } = \frac{8 \sqrt{2}}{2} \\ \\ \implies \: \huge \: s = 4 \sqrt{2}$

8 0

2 years ago

Which classification best describes the following system of equations? X=5, y=6, -x-y+z=0

PolarNik [594]

I don't see any answer choices, but because it already gives you x and y, all you have to do is plug them into the equation.
-(5)-(6)+z=0
combine like terms
-11 + z = 0
add 11 to both sides
z = 11 is your answer

7 0

3 years ago

Read 2 more answers

in 2007, your company's sales revenues were $400,000. A vigorous advertising campaign increased sales by 20% in 2008, and then b

azamat

first we multiply 400,000 by 1.20 which equals 480,000 which is the sales revenue for 2008 now we multiply 480,000 by 1.30 which equals 624,000

so your sales revenue for 2009 is $640,000

please mark brainliest.

3 0

3 years ago