# Which

Which decimals when subtracted equal 3.89:

a - b = 3.89

Correct result:

a =  10
b =  6.11

#### Solution:

$a=10$

We would be pleased if you find an error in the word problem or inaccuracies and send it to us. Thank you!

Tips to related online calculators
Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

## Related math problems and questions:

• Expressions
Expression (3a-7).(3a+7) is identical with: ?
• Unknown number
Determine the unknown number, which double of its fourth square is equal the fifth its square.
• Unknown number 17
Milada said, I am thinking of a number such that I evaluate expression x1/3, the value of the expression would be 5. Which number Milada thinking?
• Cuboid
The sum of the lengths of the three edges of the cuboid that originate from one vertex is 210 cm. Edge length ratio is 7: 5: 3. Calculate the length of the edges.
• Circle chord
Calculate the length of the chord of the circle with radius r = 10 cm, length of which is equal to the distance from the center of the circle.
• Root
The root of the equation ? is (equal or greater or less than zero)? ?
• Rectangle from string
String 12m. Make rectangle when one side is two times longer than its width.
• Mixture
How many percentages mixtures do we get by adding 23ml of matter to 89ml of water?
• Simple equation 3
24 = n • 27, solve for n
• Where and when
The truck left Kremnica at 11:00 h at a speed of 60km/h. At 12:30 h, the passenger car started at an average speed of 80km/h. How many kilometers from Kremnica will the passenger car reach truck, and when?
• Marriage sttus
In our city, there are 3/5 of the women married to 2/3 of the men. Find what part of the population is free.
• Two annuluses
The area of the annular circle formed by two circles with a common center is 100 cm2. The radius of the outer circle is equal to twice the radius of the inner circle. Determine the outside circle radius in centimeters.
• Clothes
Danka and Janka collect clothes. Danka had 9 more than Janka, so she gave her 7. Which now has more cloth and how many?
• Chocholate pyramid
How many chocolates are in the third shelf when at the 8th shelf are 41 chocolates in any other shelf is 7 chocolates more the previous shelf.
• Unknown number 4
I think number. When I divided its square root by its 1/9, I get a number 1. What number am I thinking?
• Quotient 3
If the quotient of 8/13 and 2 is subtracted from the product of 1 3/4 and 8/21, what is the difference?
• Cube surface and volume
Find the surface of the cube with a volume of 27 dm3.