Answer:
s= 65
Step-by-step explanation:
The given quation s = 20h + 10
h= number of hours
Where h= 2.75 hours
If we substitute h into given model equation, we have
s = 20(2.75)+ 10
s=55 +10
s= 65
Hence, her score is 65
Answer:
y = x+3
Step-by-step explanation:
First step is to find the slope
m = ( y2-y1)/(x2-x1)
= ( 7-9)/(4 - 6)
= -2 / -2
= 1
The we can put is in slope intercept form
y = mx+b where m is the slope and b is the y intercept
y = 1x+b
Putting in one of the points
9 = 1*6+b
Subtracting 6
9-6 = b
3=b
y = 1x+3
y = x+3
Would it be 8 am because sunlight might play a role???
Answer:
yes, your score is good for a seventh grader.
keep it up and you can score more.
If the weight of the little brother is x, then the weight of Charles is x + 9
The equation that can be used to determine what each one weighs is:
x + (x + 9) = 99.
Let us now solve it.
x + x +9 = 99
2x + 9 = 99
2x = 99 - 9
2x = 90
x = 90/2
x = 45
Little brother's weight is 45 kg.
Charles' weight will be 45 + 9 = 54 kg
Adding these two weights will give 99kg
