Answer:
3. B. 128
4. B. 50.24
Step-by-step explanation:
3. The Books
The numbers of the problem make it quite easy.
We can easily figure out how many books will be stacked in each dimension of the trunk.
Length:
Books: 10 inches
Trunk: 40 iinches.
How may books can you fit lengthwise in the trunk? 40 / 10 = 4
We then to the same for the width:
Books: 6 inches
Trunk: 24 inches
How many books can you stack wide-wise in the trunk? 26/4 = 4
And then the height:
Books: 2.5 inches
Trunk: 20 inches
How many books stacked in height? 20 / 2.5 = 8
So, we can saw the trunk is 4 books long, by 4 books wide by 8 books thick... so, the number of books you can fit in that trunk is:
B = 4 * 4 * 8 = 128
4. Tomato juice
First, we have to find the volume of that big can...
Since it's a cylinder, its volume is calculated by:
V = π * r² * h and we have everything we need:
V = 3.14 * 4² * 12 = 192 * 3.14 = 602.88 cu in
We know a cup of tomato juice takes 12 cu inches...
So, how many cups of juice fit in that can?
C = 602.88 cu in / 12 cu in/cup = 50.24 cups
Answer:
33.66 cm
Step-by-step explanation:
Multiply to find the product.
%19.17
(120 × 0.4) - 10 - 15 =23/120 = 19.16666667
Answer:
28, 30, 32
Step-by-step explanation:
Three consecutive even numbers are three even numbers that are next to each other. For example, 2, 4 and 6 would be 3 consecutive even numbers.
With this sort of problem, you want to try to let each number be equal to one thing and then construct the same number of equations as you have variables:
Let's let,
Integer 1 = X
Integer 2 = Y
Integer 3 = Z
X + Y + Z = 90
We also know, that
Y = X + 2
And that
Z = X + 4
Now, we can sub these equations into the first equation. We do this so that we have everything represented as the same variable.
90 = X + (X+2) + (X+4)
90 = 3X + 6
84 = 3X
28 = X
So, the numbers are 28, 30 and 32
