Answer:
3/28
Step-by-step explanation:
Set them up like this:
![\frac{1}{5}*\frac{3}{4}*\frac{5}{7}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B5%7D%2A%5Cfrac%7B3%7D%7B4%7D%2A%5Cfrac%7B5%7D%7B7%7D)
and the 5's cancel each other out, leaving you with
![\frac{1}{1}*\frac{3}{4}*\frac{1}{7}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B1%7D%2A%5Cfrac%7B3%7D%7B4%7D%2A%5Cfrac%7B1%7D%7B7%7D)
Multiply straight across the top and straight across the bottom to get
![\frac{1}{1} *\frac{3}{4} *\frac{1}{7} =\frac{3}{28}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B1%7D%20%2A%5Cfrac%7B3%7D%7B4%7D%20%2A%5Cfrac%7B1%7D%7B7%7D%20%3D%5Cfrac%7B3%7D%7B28%7D)
When you reduce as much as possible before multiplying, the answer will automatically be in its reduced form.
Answer:
i do believe they are right, i got b too.
Step-by-step explanation:
Step-by-step explanation:
curved surface area =
perimeter of triangular base × length
= 3×8 + 12
= 24 + 12
= 36mm^2
total surface area
= curved surface area + 2× area of triangular base
= 36 + 2 × root3 ×8^2 ÷ 4
= 36 + 2 × root3 × 16
= 36 + 2× 27.71
= 36 + 55. 425
= 91.425 mm^2
(7x+2) + (-3x+1) —> 4x + 3 i think
We have to determine the number of blocks. We know that that number have 9 in the ones place. It also has the number in the hudreds place ( x ) which is 1 more than the number in the tens place ( y ). And: x + y = 11. Another equation is: x = y + 1. Therefore y + 1 + y = 11; 2 y = 11 - 1; 2 y = 10; y = 10 : 2; y = 5 and x = 5 + 1 = 6. Answer: There are 659 blocks<span>.</span>