Answer:
The correct option A.
Step-by-step explanation:
Total numbers of students = 24.
Number of boys = 10
Number of girls = 24 - 10 = 14
Jeff claims that the ratio of boys to girls in this class must be 5:12.
The ratio of the number of boys to the total number of students is
Therefore Jeff found the ratio of the number of boys to the total number of students.
The ratio of boys to girls in this class is
Therefore the ratio of boys to girls in this class is 5:7.
Option A is correct.
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Answer: The original price of brownie was $2.1 each.
Step-by-step explanation:
since we have given that
Let the original price will be x
Number of brownie purchased = 8
According to question , each brownie costs $0.20 less than the original price.
So, it becomes
Hence, the original price of brownie was $2.1 each.
Answer:
with the points (2,3) and (-1,-9) the answer is y=4x+10
Step-by-step explanation:
you have to do (x1,y1) (x2,y2) thats for each point
the equation to get the slope is y2-y1 divided by x2,x1
to get the y-intercept to plug in one of the points to the slope-intercept equation
y=4x+5
I picked the points (2,3) but you should get the same answer with the other points
3=4(2)=5
3=8+5
3=13
-3+-3
=10 thats your y intercept.
-6 + 2
(-4) + 8
2 + (-6)