Any smart people out there, i really suck at these problems... Five times Lauren's age, decreased by 2 is equal to two times Lauren's age, increased by 11. How old is Lauren?
Answers
Using what the problem gave us, we can quickly set up an equation:
5L - 2 = 2L
Solving this equation, we get 3L = 2. L = 2/3 Lauren is 2/3 of a year old.
Take it slowly, one step at a time.
First, you need to pick something to call "Lauren's age",
because you don't know what number it is. I have a bright idea !
Let's call Lauren's age ' L ' ! OK ?
Use ' L ' to build the quantities discussed in the question:
Five times Lauren's age . . . . . . . . . . . . . . . . . 5 L
Five times Lauren's age, decreased by 2 . . . 5L - 2
Two times Lauren's age . . . . . . . . . . . . . . . . . 2 L
Two times Lauren's age, increased by 11 . . . 2L + 11
The question says that these 2 quantities are equal,
so write that down:
5L - 2 = 2L + 11
Add 2 to each side: 5L = 2L + 13
Subtract 2L from each side: 3L = 13
Divide each side by 3 : L = 13/3 or 4 and 1/3 .
That's certainly a weird number, but you can
check it out, and you'll find that it's true:
Lauren's age . . . . . 13/3
Five times Lauren's age . . . . . . . . . . . . . . . . . 65/3
Five times Lauren's age, decreased by 2 . . . 59/3 <===
Two times Lauren's age . . . . . . . . . . . . . . . . . 26/3
Two times Lauren's age, increased by 11 . . . 59/3 <===
Those 2 quantities are equal. So Lauren is 4-1/3 years old, by golly !
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Is the square root of 75/3 a rational or irrational number?
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106
____
6) 636
-6
36
-00
________
36
-36
_______
0
Answers
Answers
0.830000000000001 is irrational.
A rational number is any whole number.
An irrational number is anything in between, such as decimals and fractions.
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Hope that helped =)
27
40
to a decimal using long division.
Answers
Answer: The number is 0,675
Step-by-step explanation:
Using long division you must divide the two numbers one by one.
Step 1: Because the numerator (27) is smaller than the denominator (40), you put the zero (0) first to add one zero to de right of the numerator.
270 / 40
Step 2: You will find the number that you can multiplicate 40 to get a number smaller than 270.
40 × 6 = 240
6 its the first number after the comma.
Then: 270 - 240 = 30 (the rest)
Step 3: Add another zero to 30 like you do in step 1 and do step 2 again
40 × 7 = 280
Then 300 - 280 = 20 (the rest)
Step 4: Now you have 20, add a zero and you have 200, that number its a multiple of 40, so your division finally is:
40 × 5 = 200
Now you have the three numbers after the comma of your result.
The value of the fraction number 27 / 40 using the long division method will be 0.625.
Division means the separation of something into different parts, sharing of something among different people, places, etc.
The expression is given as,
27 / 40
The value of the fraction number 27 / 40 using the long division method is calculated as,
40 ) 270 (0.675
- 240
300
- 280
200
- 500
0 0
More about the division link is given below.
#SPJ6
Answers
you get
to divide fraction you flip the divider over to find the reciprocal
2/3 > 3/2 also you change the division symbol to the multiplication symbol
the equation now is
now you multiply to get 21/16
the answer is 1 5/16 after you simplify it
Answer: Hello there!
We know that 7/8 lb is equivalent to 2/3 of the entire bag, then the equation to find the number of pounds in the original bag is:
(2/3)*n = 7/8lb
and we want to find the number n.
The first step is divide both sides of the equation by 2/3 (or multiply both sides by 3/2 )
then
(3/2)*(2/3)*n = (3/2)*(7/8)lb
n = (3*7)/(2*8)lb = 21/16lb
now we can "break" the 21 in 16 + 5
n = (21/16)lb = (16 + 5)/16lb = (1 + 5/16)lb