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lakkis [162]
3 years ago
10

Find the sum or difference.

Mathematics
1 answer:
Strike441 [17]3 years ago
7 0

Answer:

3y + 5

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Combining Like Terms

Step-by-step explanation:

<u>Step 1: Define expression</u>

(4y + 3) - (y - 2)

<u>Step 2: Simplify</u>

  1. Distribute negative:                    4y + 3 - y + 2
  2. Combine like terms (y):               3y + 3 + 2
  3. Combine like terms (Z):              3y + 5
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Which sentence is an example of the distributive property
Marrrta [24]

The distributive property of multiplication is a very useful property that lets you simplify expressions in which you are multiplying a number by a sum or difference. The property states that the product of a sum or difference, such as 6(5 – 2), is equal to the sum or difference of the products – in this case, 6(5) – 6(2).

 

Remember that there are several ways to write multiplication. 3 x 6 = 3(6) = 3 • 6.

3 • (2 + 4) = 3 • 6 = 18.

 

Distributive Property of Multiplication over Addition

 

<span>The distributive property of multiplication over addition can be used when you multiply a number by a sum. For example, suppose you want to multiply 3 by the sum of 10 + 2.</span>

 

3(10 + 2) = ?

 

According to this property, you can add the numbers and then multiply by 3.

<span>3(10 + 2) = 3(12) = 36. Or, you can first multiply each addend by the 3. (This is called distributing the 3.) Then, you can add the products.</span>

The multiplication of 3(10) and 3(2) will each be done before you add.

3(10) + 3(2) = 30 + 6 = 36. Note that the answer is the same as before.

 

You probably use this property without knowing that you are using it. When a group (let’s say 5 of you) order food, and order the same thing (let’s say you each order a hamburger for $3 each and a coke for $1 each), you can compute the bill (without tax) in two ways. You can figure out how much each of you needs to pay and multiply the sum times the number of you. So, you each pay (3 + 1) and then multiply times 5. That’s 5(3 + 1) = 5(4) = 20. Or, you can figure out how much the 5 hamburgers will cost and the 5 cokes and then find the total. That’s 5(3) + 5(1) = 15 + 5 = 20. Either way, the answer is the same, $20.

 

The two methods are represented by the equations below. On the left side, we add 10 and 2, and then multiply by 3. The expression is rewritten using the distributive property on the right side, where we distribute the 3, then multiply each by 3 and add the results. Notice that the result is the same in each case.

 

7 0
3 years ago
Read 2 more answers
I really need help with this question
Musya8 [376]

Answer:

S= 76, T= 76, U= 104, R= 104

Y=104, V= 104, X= 76, W= 76

Step-by-step explanation:

Opposite Angles. Opposite angles are non-adjacent angles formed by two intersecting lines. Opposite angles are congruent (equal in measure).

U and V are alternating angles

so U and  are 104

i d k the last one am so sorry

6 0
3 years ago
Alex's times for running a mile are Normally distributed with a mean time of
madam [21]

Answer:

.13

Step-by-step explanation:

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Find the number in which 8 is in tenths place.
MissTica

the number in which 8 is in tenth place is

6875.1234

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A furniture maker uses the specification 21.88&lt; or = w
Mekhanik [1.2K]
Seems like your question is quite incomplete, I bet here is the missing part *<span><or = 22.12 for the width w in inches of a desk drawer. 
According to the fact that </span><span>abs(w-22) should be less than equal to 12, the answer should have a look like this : </span><span> Iw - 22I < or = 0.12. I am pretty sure it will help you.
Next time check it carefully. Regards!</span>
8 0
3 years ago
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