Answer:
4
Step-by-step explanation: d
d
x
(
x
2
+
4
y
2
)
=
d
d
x
(
4
)
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Answer:
1/8 rooms per hour
Step-by-step explanation:
We are given that Beatrice can wallpaper 1 room in 8 hours. The work rate is how many rooms Beatrice can wallpaper in one unit of time (in this case, one hour).
Another way of saying 1 room in 8 hours is 1 room/8 hours. We want to find the rate over one hour, so we want to make the denominator ( in hours) equal to 0.
With fractions, we can divide/multiply both the numerator and denominator by the same amount, and still keep the fraction. Therefore, we want to make 8 hours 1 hour by multiplication or division. Since anything divided by itself is equal to 1, we can say that 8/8 is equal to 1. Therefore, we can divide both the numerator and denominator by 8 to get
(1 room/8) = (8 hours / 8)
= (1/8 rooms) / 1 hour
Therefore, the work rate is 1/8 rooms per hour
The number of pages read by Joy in 5 hours is 103
<u>Explanation:</u>
Expression :
p = 20h + 3
where,
p is the number of pages
h is the number of hours
If Joy read the novel for 5 hours then the number of pages read by Joy would be
p = 20(5) + 3
p = 103
Therefore, number of pages read by Joy in 5 hours is 103
2017+3 years in high school= 2020
you will graduate in 2020
Answer:
42
Step-by-step explanation:
x/3+12 = 26
Multiply everything by 3 to eliminate the fraction
x+36=78
subtract 36 on both sides
x=42
42/3=14
14+12=26