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3 years ago

Copy the following expressions on your paper and simplify them by combining them. Using algebra tiles may be helpful.

Mathematics

2 answers:

Katena32 [7]3 years ago

3 0

Answer:

18x+3

Step-by-step explanation:

10x + 4 - 3 + 8x + 2 (COLLECT LIKE TERMS)

18x + 4 - 3 = 2

18x+3

lord [1]3 years ago

3 0

Ok, first you will need to SUBTRACT 4-3, it is 1 (obviously) then you da 2 to the one to get da answer of 3, ok? Anyway, you then need to add da 8 and da 10 TOGETHER, to get da answer of 18x, so now you will have da sum of 18x + 3. I hope I help :)

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The diameter of a circle is 18 inches. What is the length of a 90° arc?

Alona [7]

Answer:

AHH! Geometry!

14.1375

Step-by-step explanation:

So to get the answer, we are going to have to make a "factor"

We first do this:(Circles have an angle of 360)

$\frac{90}{360} =\frac{1}{4}$

This tells how long the arc is in comparison to the circumference!

So let's solve the circumference!

$P=D\pi \\P=18\pi \\P=About 56.55$

Now, Multiply!

$56.55*\frac{1}{4} = 14.1375$

There we go!

Hope this helps!

See Ya!

5 0

4 years ago

What property is represented in the equation: ab - ac = a(b-C)*

vesna_86 [32]

Answer:

Distributive

Step-by-step explanation:

Ex of Distributive: 2.4 + 2.3 = 2 ( 3 + 4 )

Ex of Commutative: 4 + 3 = 3 + 4

Ex of Associative: 3 + ( 4 + 5 ) = ( 3 + 5 ) + 5

Ex of Identity: 7 x 1 = 7

8 0

3 years ago

Read 2 more answers

What errors are shown here? Check all that apply.

Inessa05 [86]

Answer:

-The arrows should be a length of 6

-The arrows should point in the negative direction

-The arrows should start at zero

Step-by-step explanation:

Hope this helps!

3 0

4 years ago

Read 2 more answers

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ollegr [7]

C. Photographer A’s equipment fee is $25 less than Photographer B’s

7 0

4 years ago

Chris's age is 17 more than one-fourth of Brian's age. How old is Chris if Brian is 27?

dedylja [7]

Answer:

23.75

Step-by-step explanation:

Given that:

Brian's age = 27

Age of Chris is 17 more than one - fourth of Brian's age.

To find:

Age of Chris = ?

Solution:

Let age of Chris = $x$

One - fourth of Brian's age = $\frac{27}{4}$

17 more than One - fourth of Brian's age = $\frac{27}{4}$ + 17

Therefore, we can write the equation as per question statement:

$x = \frac{27}{4} + 17\\\Rightarrow x = 6.75+17\\\Rightarrow \bold{x = 23.75}$

Therefore, Chris is 23.75 years old if Brian is 27.

6 0

3 years ago