Grade - math word problems - page 900 of 912
Number of problems found: 18228
- Energy saving
They released three different independent inventions saving 15%, 17%, and 16% energy. Some considered that with the use of these inventions, the total savings would be 15% + 17% + 16% = 48%. Is this true? How much will the percent of energy save all three
- Date game
Let now is Tuesday. What day is after 229 days? Write the result as a number: 1=Monday, 2=Tuesday, 3=Wednesday, 4=Thursday, 5=Friday, 6=Saturday, 7=Sunday.
- Average
The average of 5 numbers is 108. What is its sum?
- Word
What is the probability that a random word composed of chars S, G, R, S, E, I, N, A, L, P, C, T, M, H, E, E will be the SPHERICALSEGMENT?
- Bulbs
In the box are 6 bulbs with power 75 W, 14 bulbs with power 40 W, and 15 with 60 W. Calculate the probability that a randomly selected bulb is:
- Exponential equation
In the set R, solve the equation: 7 -5 +19x=4 3 -20x
- Kitchen
The kitchen roller has a diameter of 72 mm and a width of 287 mm. How many square millimeters roll on one turn?
- The angle of lines
Calculate the angle of two lines y=2x+29 and y=-3x+1
- Gear wheels
Two gear wheels, which fit together, have the number of teeth z1=117 and z2=70. Calculate the speed of the first wheel if the second wheel rotates 582 revolutions per minute.
- Median
In the right triangle are sides a=96 dm b=31 dm. Calculate the length of the medians tc to the hypotenuse.
- Rectangles
How many rectangles with area 8855 cm² whose sides are natural numbers?
- Isosceles triangle
Calculate the perimeter of the isosceles triangle with arm length 87 cm and base length of 95 cm.
- Minute angle
Find the size of the angle, which takes a minute hand for 20 minutes.
- Guess number
With what number should be divided, number 9727 to be reduced by 70%?
- Secret number
Find the secret number n, which reversed decreases by 16.4 if the number increases by 16.4.
- Angles
The triangle is one outer angle 158°54' and one internal angle 148°. Calculate the other interior angles of a triangle.
- Rectangle SS
The perimeter of a rectangle is 154 dm, and its diagonal is 62.36 dm. Find the dimensions of the rectangle.
- Logarithm
Determine the number whose decimal logarithm is -3.8.
- V-belt
Calculate the length of the belt on pulleys with diameters of 105 mm and 393 mm at shaft distance 697 mm.
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