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shawk6230
24.06.2019 •
Mathematics
(score for question : __of 5 points)1. 15% of the toddlers in a preschool class drink water with their lunch. how many toddlers are in the class if3 drink water with their lunch? (a) write a proportion for the situation[b] solve the problem. show your work
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Ответ:
(a) 15/3 = 100/x
(b) There are 20 toddlers in the class.
Step-by-step explanation:
(a)
The total number of students is 100% of the students.
Let the total number of students be x.
15% of students is to 3 as 100% of students is to x.
15/3 = 100/x
(b)
15/3 = 100/x
Cross multiply the equation.
15x = 3 * 100
15x = 300
Divide both sides by 15.
x = 20
There are 20 toddlers in the class.
Ответ:
y=2x−3 is in slope intercept form for a linear equation, y=mx+b , where m is the slope and b is the y-intercept. The y-intercept is the point at which x=0 and y=−3 , which is point (0,−3) You can plot this point on your graph. The slope is can be described as riserun , and can be written as 21 .