Factors are the numbers you multiply together to get another number. when you find the factors of two or more numbers, and then find some of the numbers (factors) are the same (common) you have common factors.
example: 12 and 36
12: 1x12, 2x6, 3x4
36: 1x36, 2x18, 3x12, 4x9, 6x6
the common factors in these numbers are 1, 2, 3, 4, 6 and 12
hope this helped you out!
Answer:
Number is 61 or 16
Step-by-step explanation:
Let x be the digit at tens place and y be the digit at ones place.
So, the two digit number is 10x+y.
When the digits are reversed, number becomes 10y+x
According to question, the sum of a 2-digit number and the 2-digit number when the digits are reversed is 77
10x+y+10y+x=77
11x+11y=77
x+y=7 (i)
Also, difference of the same two numbers is 45
(10x+y)-(10y+x)=45 or (10y+x)-(10x+y)=45
x-y=5 (ii) or y-x=5 (iii)
Consider equations (i) and (ii)
Put x=y+5 in x+y=7
y+5+y=7
2y=2
y=1
So, x=y+5=1+5=6
So, number = 10x+y=10(6)+1=61
Consider equations (ii) and (iii)
Put y=x+5 in x+y=7
x+5+x=7
2x=2
x=1
So, y=x+5=1+5=6
So, number = 10(1)=6=16
Therefore, number is 61 or 16
Answer:
the first one
the third one
and the forth one
Step-by-step explanation:
they all add up to the same amount
The answer is 50/9.
Explanation:
To convert mixed numbers to improper fractions, I remember MAD (multiply, add, denominator).
Step 1 (M): Multiply the denominator (9) by the whole number (5). You should get 45.
Step 2 (A): Add the numerator (5) to the number you just got (45). 45 + 5 = 50.
Step 3 (D): Take the number you have (50) and put it over the denominator (9). Your final answer is 50/9.
-say in the situation "C" was "X"; angle ∠C and ∠D are supplementary angles so ∠D-180=∠C
-all triangle, angles sums =180° so ∠A+∠B+∠C=180
-if the triangle were to be a right triangle you could use 30,60,90 or 45,45,90 but you need to know the measure of one of 2 of the angles