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velikii [3]
3 years ago
6

Simplify the algebraic expression 15 x y - 13 + 4 x + 3 y + x y + 21​

Mathematics
2 answers:
pychu [463]3 years ago
5 0

(16xy + xy) + (4x) + (3y) + (-13 + 21)

17xy + 4x + 3y + 8

Natasha2012 [34]3 years ago
4 0

Answer:

The simplification of the equation is:

16xy+4x+3y+8

Step-by-step explanation:

We need to group similar terms to simplify the algebraic expression:

(15xy+xy)+4x+3y+(21-13)\\16xy+4x+3y+8

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Which pair of numbers is relatively prime?
kondor19780726 [428]

Answer:

B

Step-by-step explanation:

Two numbers are relatively prime when there is no integer greater than one that that is a factor of both of them.

A: 15 and 21 both have a factor of 3.

<u>B</u>: 24 and 49 have no common factors, and therefore, are relatively prime.

C. 35 and 135 both have a factor of 5.

D:  45 and 102 both have a factor of 3.

6 0
3 years ago
Cameron has 2 video game holder stands each can hold 2 rows of 20 games write and evaluate a numerical expression to find the to
Aleksandr [31]

Answer:

so this would be the equation

2(2*10)=v

So the number on the outside is the number of stands, the second 2 is for the two rows, and the 10 is the games. I did this because its two rows and combined they make 20 games. It took me a little to figure that out.

This shows the number of games total in both holders.


5 0
3 years ago
Which of the following shows the Distributive Property of Multiplication of 4 x 24?
Nana76 [90]
The answer is (4x20) + (4x4) which equals 96
5 0
2 years ago
A student used a 30% off coupon to buy a jacket. There was no tax. The student paid $67.34. What was the original price of the j
PSYCHO15rus [73]

Step-by-step explanation:

the solution is in the picture

6 0
2 years ago
Read 2 more answers
In his first year, a math teacher earned $32,000. Each successive year, he
Ivan

Answer:

Step-by-step explanation:

Each successive year, he

earned a 5% raise. It means that the salary is increasing in geometric progression. The formula for determining the nth term of a geometric progression is expressed as

Tn = ar^(n - 1)

Where

a represents the first term of the sequence(amount earned in the first year).

r represents the common ratio.

n represents the number of terms(years).

From the information given,

a = $32,000

r = 1 + 5/100 = 1.05

n = 20 years

The amount earned in his 20th year, T20 is

T20 = 32000 × 1.05^(20 - 1)

T20 = 32000 × 1.05^(19)

T20 = $80862.4

To determine the his total

earnings over the 20-year period, we would apply the formula for determining the sum of n terms, Sn of a geometric sequence which is expressed as

Sn = (ar^n - 1)/(r - 1)

Therefore, the sum of the first 20 terms, S20 is

S20 = (32000 × 1.05^(20) - 1)/1.05 - 1

S20 = (32000 × 1.653)/0.05

S20 = $1057920

3 0
3 years ago
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