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Fed [463]
3 years ago
7

What is tje answer 3m - m

Mathematics
1 answer:
Hitman42 [59]3 years ago
5 0
The answer is 2m because it is like if you had 3 mangoes and you eat one you would have 2 mangoes.<span />
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Solve for x in the equation x^2+10x+12=36.
Alexandra [31]
Solve for x:
x^2 + 10 x + 12 = 36

36 = 36:
x^2 + 10 x + 12 = 36

Subtract 12 from both sides:
x^2 + 10 x = 24

Add 25 to both sides:
x^2 + 10 x + 25 = 49

Write the left hand side as a square:
(x + 5)^2 = 49

Take the square root of both sides:
x + 5 = 7 or x + 5 = -7

Subtract 5 from both sides:
x = 2 or x + 5 = -7

Subtract 5 from both sides:
Answer:  x = 2 or x = -12 Thus the Answer is A.
3 0
3 years ago
Explain why 20 is not a square number.
Marizza181 [45]

A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 20 is about 4.472. Thus, the square root of 20 is not an integer, and therefore 20 is not a square number.

8 0
3 years ago
• William Shakespeare died on his birthday at
saveliy_v [14]

Answer:

C

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
63 is 75% of what number?<br>  <br> Enter your answer in the box.
Viefleur [7K]
75% of x = 63 

<span>75/100 * x = 63 </span>

<span>So dividing by 75 / 100 on both sides </span>

<span>x = 63 / 75 / 100 </span>

<span>x = 63*100/75 </span>
<span>x = 84 </span>
<span>The number is 84 </span>

<span>So 75% of 84 = 63! </span>

<span>Hope that helps!</span>
3 0
3 years ago
Evaluate 1 3/7-(2/3+5/7)​
Artyom0805 [142]

Answer:

13/7 - (14/21 + 15/21)

Step-by-step explanation:

= 13/7 - ( 29/21)

= 39/21 - 29/21 = 10/21 = 0.47

7 0
3 years ago
Read 2 more answers
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