Chapter 22
For each statement, make an equation in terms of x and then solve it.
"A number multiplied by four gives 32."
"A number multiplied by four gives 32."
1 / 22
Éléments de cette leçon
For each statement, make an equation in terms of x and then solve it.
"A number multiplied by four gives 32."
"A number multiplied by four gives 32."
Slide 1 - Question ouverte
If a number is subtracted from nine the result is -5.
Slide 2 - Question ouverte
Represent each situation using an equation in terms of y. Then solve it.
"A number is multiplied by four, then 10 is added to get 50."
"A number is multiplied by four, then 10 is added to get 50."
Slide 3 - Question ouverte
When 10 is subtracted from four times a certain number, the result is 190.
Slide 4 - Question ouverte
Three times the sum of a number and four gives 150.
Slide 5 - Question ouverte
Solve each problem by setting up an equation.
"A number is doubled and then six is added. When this is divided by four, the result is seven. What is the number?"
"A number is doubled and then six is added. When this is divided by four, the result is seven. What is the number?"
Slide 6 - Question ouverte
Next Section
Slide 7 - Question ouverte
A father is three times as old as his daughter. If the father is 31 years older than his daughter, what are their ages?
Slide 8 - Question ouverte
Jess and Silvia have 420 marbles between them. If Jess has five times as many marbles as Silvia, how many do they each have?
Slide 9 - Question ouverte
Soumik has $5 less than his friend Kofi. If they have $97.50 altogether, how much does each person have?
Slide 10 - Question ouverte
Two competition winners are to share a prize of $750. If one winner receives twice as much as the other, how much will they each receive?
Slide 11 - Question ouverte
A grandfather is six times as old as his grandson. If the grandfather was 45 when his grandson was born, how old is the grandson?
Slide 12 - Question ouverte
Seat work
Numbers 6 to 10
Numbers 6 to 10
Slide 13 - Question ouverte
Chapter 20 Review
Slide 14 - Question ouverte
Five sector angles in a pie chart are x* + 2x* + 5x* + 20* + 70*. Find the value of x in degrees.
Slide 15 - Question ouverte
Mike marks in 5 tests are: 20, 2a, a, 30, 40. His mean mark is 27. What is the value of a?
Slide 16 - Question ouverte
Slide 17 - Question ouverte
b. Inter-quartile range
c. number of students with a reaction time of more than 4 seconds.
c. number of students with a reaction time of more than 4 seconds.
Slide 18 - Question ouverte
Find the median.
Slide 19 - Question ouverte
b. the 20th percentile
Slide 20 - Question ouverte
c. the inter-quartile range
Slide 21 - Question ouverte
d. the probability that a person chosen at random spends 2 hours or less in the museum.
