Step by step explanation:
5:7
= 5+7 = 12
48 ÷ 12 = 4
1 part of ratio = 4
4 x 7 = 28
so there are 28 boys.
Answer:
2/7
Step-by-step explanation:
4 red marbles and 3 blue marbles in a bag = 7 marbles
P(red) = red/total = 4/7
No replacement
3 red marbles and 3 blue marbles in a bag = 6 marbles
P(red) = red/total = 3/6 = 1/2
P(red, no replacement, red) = 4/7 * 1/2 = 2/7
I’m going to set up an equation to solve this.
150x+400=1450 where x equals the number of cars he sold last week.
150x+400=1450
First you would subtract 400 on both sides of the equal sign.
150x=1050
Then you would divide both sides by 150 to get
x=7.
Alex sold 7 cars last week.
Since Alexa is half the age of Crystal would she run half of Crystals yards? if so it would be 150 yards