All categories

2 years ago

Expand and simplify 5(3m-2)+3(m+4)

Mathematics

2 answers:

Stels [109]2 years ago

8 0

Answer:

The answer to your question is 18m + 2

Step-by-step explanation:

5(3m - 2) + 3(m + 4)

Multiply 5 by 3m and -2 and 3 by m and 4

15m - 10 + 3m + 12

Simplify like terms

15m +3m - <u>10 + 12</u>

Result 18m + 2

Daniel [21]2 years ago

6 0

Distribute
15m-10+3m+12
Combine like terms
18m+2

You might be interested in

When a number x is multiplied by 6, the result is 3/8.

pentagon [3]

E because 6 times .375 which is 3/8 = 16

4 0

2 years ago

Read 2 more answers

1)How many ways can the letters in the word BOOKKEEPER be arranged? (Must show set-up )

sergeinik [125]

Question 1

There are 5 letters (B, O, K, E, R) and there is a total of 10 letters to make up the word.
There are $\frac{10!}{(10-6)!6!}$ ways of arranging the letters, which equal to 210 ways

Question 2

There are seven swimmers in total.
There are $\frac{7!}{(7-1)!1!}$ ways of choosing the first winner, which is 7 ways
There are $\frac{6!}{(6-1)!1!}$ ways of choosing the second winner, which is 6 ways
There are $\frac{5!}{(5-1)!1!}$ ways of choosing the third winner, which is 5 ways
There are 7×6×5=210 ways of choosing first, second, and third winner

Question 3

The probability of eating an orange and a red candy is $\frac{15}{31}$ × $\frac{9}{30}$ , which equals to $\frac{9}{62}$

The probability of eating two green candies is $\frac{7}{31}$ × $\frac{6}{30}$ which equals to $\frac{7}{155}$

3 0

2 years ago

Speed can be found using the formula s = d/t (d = distance, t = time). True or false

Galina-37 [17]

False, it would be d*t (distance*time)

8 0

2 years ago

Read 2 more answers

1/3 (x + 4 ) = 20 wt the answer

sashaice [31]

Answer:

x = 56

Step-by-step explanation:

To start, distribute the 1/3 onto the x and the 4 in the parenthesis. That leaves you with

1/3x + 4/3 = 20

We want the x value by itself so we're going to subtract the 4/3 from the left and the right side, leaving us with

1/3x + 4/3 = 20 - 4/3

1/3x = 18 & 2/3 (since we're dealing with fractions, I'm going to change the 18 & 2/3 into an improper fraction just to make the next step easier.)

1/3x = 56/3

The last step is to divide the 1/3 off of the x, so x is by itself. To divide a fraction by a fraction, just flip the fraction you're dividing with and multiply.

56/3 x 3/1 = 56 (56 x 3 is 168, and 3 x 1 is 3, so when you reduce 168/3, you get 56)

So, 56 is our answer, because after dividing off the 1/3, we're left with x = 56

3 0

2 years ago

|3 + y| - 4 = 7 solve

vfiekz [6]

Answer:

y = 8 or y = -14

Step-by-step explanation:

Solve for y over the real numbers:

abs(y + 3) - 4 = 7

Add 4 to both sides:

abs(y + 3) = 11

Split the equation into two possible cases:

y + 3 = 11 or y + 3 = -11

Subtract 3 from both sides:

y = 8 or y + 3 = -11

Subtract 3 from both sides:

Answer: y = 8 or y = -14

8 0

2 years ago

Read 2 more answers