Question 1
Select the algebraic expression for each of the following statements.
Question 1a - f - multiple choice question
a
A number
x
is multiplied by 5 and then 7 is added to the result.
5(
x
+ 7)
5
x
– 7
5
x
+ 7
b
Four is added to a number
p
and then the result is multiplied by 6.
p
+ 4 × 6
6(
p
+ 4)
24
p
c
A number
x
is subtracted from 20 and then the result is divided by 3.
20 – \(\dfrac{x}{3}\)
\(\dfrac{20\ – x}{3}\)
\(\dfrac{x\ – 20}{3}\)
d
A number
m
is multiplied by 2 and then result is subtracted from 20.
20 – 2
m
2
m
– 20
2(
m
– 20)
e
A number 7 is divided by
k
and then 10 is subtracted from the result.
\(\dfrac{k}{7 – 10}\)
\(\dfrac{7}{k}\) – 10
\(−\ \dfrac{3}{k}\)
f
A number
j
is squared and then subtracted from 15.
2
j
– 15
15 – 2
j
15 –
j
²
g
A number
g
is subtracted from 20 and then the result is multiplied by –5.
–5(20 –
g
)
–5(
g
– 20)
–5
g
– 20