Number Skills
(23-30)x5-(-5)=
-30
Evaluate y-x/3, if x=3, y= -7
-8
What is the y-intercept of this function y=2x-3?
y-intercept is -3
What is 3/7 of 35kg?
15kg
20 of the 30 students passed
the final exam. What percent of the students passed?
66.7%
Calculate the surface area of a rectangular prism with length 30cm, width 20cm and height 10cm.
2200cm2
Evaluate -34
-81
Solve 5x-3x=4x-2
x=1
Is this function y=-x+4 a proportional graph?
NO
Calculate 1 5/6 + 3 3/5 =
5 13/30
In a bag of Nonstops there are on average 50 red nonstops. This is 20% of all the nonstops in the average packet. How many nonstops are there
in total?
250
Convert 26000 cm2 = m2
2,6 m2
Estimate square root of 17
Around 4.11 or 4.12
-3x(x2+2x-2)+6x2+2x3-6x
-x3-12x
What is the slope of a line that passes through the points (-1,1) and (3,4)?
3/4
Calculate 2 1/7 divide by 2 1/2
6/7
Sune bought a washing machine and she pays 350 kr every month for one year. If she had paid all the cost at one time, she would pay 3600 kr. How much more expensive to pay by installments (avbetalning) than paying all the cost directly?
Around 16,7%
Calculate a cone's volume if the radius of the base is 5cm, and the height is 10cm.
262 cm3
Simplify. 55x6y7 /5x4y7=
11x2
45/16 + 3/2 n = 7/4 n - 19/16
n=16
What is the slope of this function 3x-2y=12?
3/2 or 1,5
8/5 of a kilogram costs 320kr. How much does 1 kg cost?
200kr
Sara bought a car for 80 000kr. The value of the car decreases by 5% per year. How much will the car value after 4 years?
65160.5kr
Calculate the area of a circle sector, if the raduis is 50m, and the angle of the sector is 120 degree.
Around 2617 m2
Calculate and write your answer in scientific notation form: 2,0 x 107 x8,0 x 102=
1,6x1010
A cross country replay race is 3500m long. The race includes three legs. The second leg is 250m shorter than the first and the third length is 3 times longer than the second. How long is the first leg?
900m
What is the Points of intersection of this two functions y=3x-2 and y=-x+1?
(0.75, 0.25)
4x2/5y3 x 5y2/4x3
1/xy
Rakel made a game. The number of users increases 25%. After three months, she has 8000 users. How many users did she have at the beginning of the first month?
4096 users
One carton has the measure of 560mm x 385mm x 350mm. If you want to place a stick which is 75cm long in it, can you do it?
yes, diagonal is 76.5cm.