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Formulas Ten quick questions
Formulas
Ten quick questions
b: 50
d: 2
a: 15
c: 105
The speed of a falling object is found by the formula:
v = 10t
If t = 5, find v
1
b: 120 mins
d: 70 mins
a: 150 mins
c: 110 mins
Use this rule to work out the number of minutes to cook a turkey that weighs 3 kg:
Multiply the weight by 40 and add 30.
2
b: £3.20
d: £32
a: 32p
c: £4.80
Use this rule to work out the cost of a taxi journey;
Cost = cost per kilometre × number of kilometres
The cost per km is 40p, and the journey is 8km.
3
b: 15
d: 58
a: 13
c: 18
The speed of a falling object is found by the formula:
v = u + 10t
If u = 8 and t = 5, find v
4
b: -4
d: -12
a: 4
c: 7
P = x2 – 5x
Find the value of P when x = 4
5
b: -6
d: 24
a: 1
c: 6
P = x2 – 5x
Find the value of P when x = -3
6
b: 25
d: 150
a: 15
c: 87
T = 3a + 5b
a = 5 and b = 2
Work out the value of T
7
b: 6 km/hr
d: 6.6 km/hr
a: 60 km/hr
c: 7 km/hr
A cyclist travels a distance of 20 km in 3 hours. Which of the following gives the average speed to the nearest whole number?
8
Time
DistanceSpeed
b: £41
d: £20
a: £52
c: £32
Andy makes dresses, and is paid using the formula: P = 4n + 32,
where P is his pay in pounds, and n is the number of dresses he makes.
Andy makes 5 dresses. What is his pay?
9
b: 30
d: 1000
a: 10
c: 40
p = 2
Work out the value of:
5p3
10
Answers
b: 50
d: 2
a: 15
c: 105
The speed of a falling object is found by the formula:
v = 10t
If t = 5, find v
1
b: 120 mins
d: 70 mins
a: 150 mins
c: 110 mins
Use this rule to work out the number of minutes to cook a turkey that weighs 3 kg:
Multiply the weight by 40 and add 30.
2
b: £3.20
d: £32
a: 32p
c: £4.80
Use this rule to work out the cost of a taxi journey;
Cost = cost per kilometre × number of kilometres
The cost per km is 40p, and the journey is 8km.
3
b: 15
d: 58
a: 13
c: 18
The speed of a falling object is found by the formula:
v = u + 10t
If u = 8 and t = 5, find v
4
b: -4
d: -12
a: 4
c: 7
P = x2 – 5x
Find the value of P when x = 4
5
b: -6
d: 24
a: 1
c: 6
P = x2 – 5x
Find the value of P when x = -3
6
b: 25
d: 150
a: 15
c: 87
T = 3a + 5b
a = 5 and b = 2
Work out the value of T
7
b: 6 km/hr
d: 6.6 km/hr
a: 60 km/hr
c: 7 km/hr
A cyclist travels a distance of 20 km in 3 hours. Which of the following gives the average speed to the nearest whole number?
8
Time
DistanceSpeed
b: £41
d: £20
a: £52
c: £32
Andy makes dresses, and is paid using the formula: P = 4n + 32,
where P is his pay in pounds, and n is the number of dresses he makes.
Andy makes 5 dresses. What is his pay?
9
b: 30
d: 1000
a: 10
c: 40
p = 2
Work out the value of:
5p3
10
