The answer is 7. Hope it helps
The Order of Operations would tell you
1. substitute the value of the variable
2. evaluate multiplications
3. evaluate the sum
25*4 +40*4
100 +160
260
Personally, I would combine terms and rewrite it to be
.. (25 +40)x
.. 65x
.. 65*4
.. 65*2*2
.. 130*2
.. 260
_____
The Order of Operations is the rule book for evaluating expressions. However, we know that multiplication and addition are associative and commutative, and that the distributive property applies.
If you are evaluating expressions in a computer program, there are methods for assuring minimum round-off and truncation errors that have little to do with any of the above, but everything to do with how numbers are represented in a computer and the way compilers work.
The awnser would be a because the cylinders have the same size which means they have the same volume
Answer:
Yes, the shapes are similar. Note, the angles are equivalent and the sides are scales of each other satisfying the requirements for similarly.
Step-by-step explanation:
For a shape to be similar there are two conditions that must be met. (1) Must have equivalent angles (2) Sides must be related by a scalar.
In the two triangles presented, the first condition is met since each triangle has three angles, 90-53-37.
To test if the sides are scalar, each side must be related to a corresponding side of the other triangle with the same scalar.
9/6 = 3/2
12/8 = 3/2
15/10 = 3/2
Alternatively:
6/9 = 2/3
8/12 = 2/3
10/15 = 2/3
Since the relationship of the sides is the scalar 3/2 (Alternatively 2/3), then we can say the triangles meet the second condition.
Given that both conditions are satisfied, then we can say these triangles are similar.
Note, this is a "special case" right triangle commonly referred to as a 3-4-5 right triangle.
Cheers.
The percent decrease is 20%.
150 - 120 = 30
30 divided by 150 = 0.2
0.2 as a percent is 20
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