The unit rate of hours is 2 per day.
There are 7 days in a week. You studied for 14 hours total. 14/7 is 2. So, 2hr/day.
Answer:
14cm
Step-by-step explanation:
Martelene bought a small aquarium to celebrate her birthday.
The aquarium has a length of 18.5cm, width of 15cm and a volume of 3885 cubic centimeters.
From the question above we are required to calculate the depth of the water in the aquarium
Let A represent the depth of the water in the aquarium
Volume= length×width×height
3885= 18.5 × 15 × A
3885= 277.5A
Divide both sides by the coefficient of A which is 277.5
3885/277.5= 277.5A/277.5
A = 3885/277.5
A= 14cm
Hence the water is 14cm deep into the aquarium.
We can split the given figure in 2 right triangles:
So, in order to get the area of each triangle, we need to find the base, denoted by x in both of them. Since both are right triangles, we can to apply Pythagoresn theorem. By applying this theorem to right hand side triangle, we have
so we have
Then, x is given by
Then, the area of the left triangle is given by
Similarly, the area of the second triangle is given by
Then, the area of the entire figure is the sum of the area of the 2 triangles, that is,
Therefore, the answer is: 330 square inches
Answer:
22x
Step-by-step explanation:
7x + 15x
(7 + 15)x
22x
Answer:
5(x-y)/6
Step-by-step explanation:
(4x-y)/3 - (x+y)/2
We have to find the Least common multiple to simplify the operation.
(The Least common multiple of 3 and 2 = 3*2 = 6)
[2(4x-y)-3(x+y)]/6
(8x-2y-3x-3y)/6
5x-5y/6
5(x-y)/6
The rule of subtracting the fraction, including the constant, is to do in a simplification method.
Therefore, the answer is 5(x-y)/6
