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Sav [38]
3 years ago
13

Six times a number is 45 greater than the the product of the number and -3. Find the number.

Mathematics
1 answer:
blagie [28]3 years ago
6 0

Let us try to formulate the expressions one by one.

let the number be x.

Step 1:

six time the number is 6*x = 6x

Step 2:

product of the number and -3 is -3x

Step 3:

now let us make equation for it:

6x = -3x +45

adding 3x on the left side,

6x+3x = 45

9x = 45

dividing right side by 9

x=45/9 = 5

So the number is x=5



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Given: ⅓ (18x + 27) = 81 Prove: x = 12
sasho [114]

Answer:

Firstly, rewrite the equation:

⅓ (18 + 27) = 81

Substitute x for the given number of it's supposed equivalent.

In this case x = 12.

⅓ (18(12) + 27) = 81

Solve using PEMDAS and simplify what is in the parenthesis first. Then, multiply.

(18 x 12) + 27 = 243

Now, solving using PEMDAS, multiply the total of what you got that was originally in the parenthesis by ⅓ .

⅓ (243) = 81

When you multiple these number they are equivalent to 81.

81 = 81

Since the equation given, when substituted x for 12, is equivalent to 81, this proves that substituting x for 12 makes this equation true.

4 0
3 years ago
10. Fred has to read a book for a test in 2 weeks. If he reads the same number of pages per day and the book has 350 pages, how
Angelina_Jolie [31]

Answer:

25 pages per day

Step-by-step explanation:

Fred has 14 days to finish 350 pages.

To find out how many pages he needs to read each day, we divide 350 by 14, to get 25.

5 0
1 year ago
Read 2 more answers
can some one plz answer my qwestion it is peter weighs 105 kg he want to lose 500 grams per week how many weeks willit take for
svet-max [94.6K]

Answer:

Your answer is he’s going to die out of Obesity

Step-by-step explanation:

8 0
3 years ago
Two joggers run 8 miles north and 5 miles west . what is the shortest distance, to the nearest tenth of a mile, they must travel
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Answer:9.4 miles

Hope this helps

6 0
3 years ago
Find the quotient and express in simplest form.
White raven [17]
-1/2 ÷9/5
=-1/2*5/9
=-5/18. answer.
-1*5 =5 numerator
2*9=18 denominator
4 0
3 years ago
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