Answer:
n=9
Step-by-step explanation:
7n+5=68 Subtract 5 on both sides.
<u>-5 -5</u>
7n=63 Divide both sides by 7.
<u>/7 /7</u>
n=9
Hope this helps! Have a nice day ^^
Answer:
The error in the students work is
y -(-8) + 8 = -6x + 12 + 8
subtracting a negative is adding
y+8
They should subtract 8 from each side instead of adding 8 to each side
Step-by-step explanation:
We can use point slope form since we are given a point and the slope
y-y1 = m( x-x1)
y--8 = -6(x-2)
y+8 = -6(x-2)
Distribute the -6
y+8 = -6x+12
Subtract 8 from each side
y+8-8 = -6x+12-8
y = -6x+4
The error in the students work is
y -(-8) + 8 = -6x + 12 + 8
subtracting a negative is adding
y+8
They should subtract 8 from each side instead of adding 8 to each side
Answer:
They will be 5 miles apart in 1 hour
Step-by-step explanation:
Here, we want to calculate the time it will take for the two ferries to be 5 miles apart
Mathematically; distance = speed * time
Let the number of hours be x
In x hours, the cat will have traveled 34 * x = 34x miles
In x hours, the Bird will have traveled 29 * x = 29x miles
So;
34x - 29x = 5
5x = 5
x = 5/5
x = 1 hour
Answer:
2)
d. -1 1/2
3)
c. 21 1/2
Step-by-step explanation:
Answer:
The school will have 535 books.
Step-by-step explanation:
12 books a month * 5 months = 60 additional books.
60 + 475 = 535 books.
