Answer:
A. 45h = 1,575
Step-by-step explanation:
Area of trapezoid = 1,575 cm² (given)
We are given the length of both bases, a = 63 cm and b = 27 cm
We need to find the formula that will enable us determine its height (h).
Thus:
Area of trapezoid = ½(a + b)h
Plug in the values
½(63 + 27)h = 1,575
½(90)h = 1,575
45h = 1,575
The answer is A. 45h = 1,575
Answer:
for brand A it required 41 bags and for brand B is required 56 bags
Step-by-step explanation:
The computation is shown below:
Let us assume Brand A be x
And, brand B be y
Now according to the question
The following equations are
8x + 7y = 720
4x + 6y = 500
Multiply by 2 in equation 2
8x + 7y = 720........(1)
8x + 12y = 1000..........(2)
Now subtract equation 1 from equation 2
5y = 280
y = 56 bags
And, x is
8x + 7(56) = 720
8x + 392 = 720
8x = 328
x = 41 bags
hence, for brand A it required 41 bags and for brand B is required 56 bags
The answer to your question is 5 hours
First, find the least common multiple of 3 and 4, the denominators. You find that lcm(3,4)=12.
So, we get ![\frac{1}{3}*\frac{4}{4}+\frac{1}{4}*\frac{3}{3}=\frac{7}{12}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D%2A%5Cfrac%7B4%7D%7B4%7D%2B%5Cfrac%7B1%7D%7B4%7D%2A%5Cfrac%7B3%7D%7B3%7D%3D%5Cfrac%7B7%7D%7B12%7D)
This is because the denominator must the a multiple of the lcm in order to add the fractions properly.
Answer:
i dont know
Step-by-step explanation: