Answer:
7x - 18
Step-by-step explanation:
x multiplied by seven = 7x
eighteen subtracted from product (7x) = -18
7x - 18
Answer:
5cm
Step-by-step explanation:
Convert 1.5m into cm to make it easier to solve.
1.5m --> 150cm (*100)
The real bike length is 30 times larger than the scale. So to undo this we need to divide by 30.
150cm / 30 = 5cm
Answer: There are two answers to this x=3 and x=11
Step-by-step explanation:
Set up a proportion.
Let x = the number of students in 29970 who speak 3 or more languages.
285/19 = 29970/x Cross multiply
285 x = 19 * 29970
285x = 569430
x = 569430/285
x = 5415 students speak 3 languages.
Answer:
a) 21,952
b) 3,375
c) 36
Step-by-step explanation:
a) 7 X 7 X 7 X 4 X 4 X 4
= 7cube X 4cube
= 343 X 64
= 21,952
b) 5 X 3 X 5 X 3 X 5 X 3( group it)
5 X 5 X 5 X 3 X 3 X 3
= 5cube X 3cube
= 125 X 27
= 3,375
c) 3 X 3 X 2 X 2
= 3square X 2square
= 9 X 4
= 36
