Answer: 172,370,000
Step-by-step explanation: To round 172,365,022 to the nearest ten thousand, we first find the digit in the rounding place which in this case is the 6 in the ten thousands place.
Next, we look at the digit to the right of the 6 which is 5.
The rules of rounding say that if the digit to the right of the rounding places is less than 5, we round down and if the digit to the right of the rounding place is greater than or equal to 5, we round up.
Since 5 is greater than or equal to 5, we round up.
This means that we add 1 to the 5 in the rounding place to get 7 and all digits to the right of the 7 will become 0.
So 172,265,022 rounded to the nearest ten thousand is 172,370,000.
31) x = 25 degrees
Equation: (2x+15) + x + 90 = 180 degrees
--> 3x+105 = 180
-------> 3x = 75
-------------> x = 25 degrees
32) x = 17 degrees
Equation: (x+52) + (3x+21) + 39 = 180 degrees
--> 4x+112 = 180
-------> 4x = 68
-------------> x = 17 degrees
Answer:
answer: 560
Step-by-step explanation:
Multiply 5 by 112 so 112 × 5 = 560 So 112 is 20% of 560
Answer:
the answer is d. 4x²+x-6
Step-by-step explanation:
In order to combine the fractions, they need to have the same denominator.
So, multiply each of their numerators by the denominator they need to be equivalent.
This would look like this:
3x/x+3 --> 3x(x)/x(x+3) ---simplify this as--> 3x²/x(x+3)
x-2/x --> (x-2)(x+3)/x(x+3) ---simplify this as --> x²+x - 6/x(x+3)
3x 3x(x) x-2 (x-2)(x+3)
----- ---> ----- and -------- ---> ---------
x+3 x(x+3) x x(x+3)
now that both fractions have the same denominator, we can add their numerators.
3x² + x²+x-6 = 4x²+x -6
This should now look like this:
4x²+x -6
-------------
x(x+3)
Answer:
15 years
Step-by-step explanation:
Let e represent Edith's age. Then e also represents her brother's age.
Then:
e = 5e - 60.
Consolidating the e terms, we get 60 = 4e. Thus, e = 15.
Edith is 15 years old. So is her brother.