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earnstyle [38]
3 years ago
15

2/5 of 7/10 simplest form

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
3 0
So, let's multiply 2/5 by 7/10. The reason I know to multiply is because of the word "of". Of is a multiplication word, so let's multiply.
2/5×7/10=14/50
The reason I know that I could simplify it is because the numbers are both even, so they are able to get split.
14/50=7/25
7 is a prime number and 25 is not divisible by 7, so 7/25 is 2/5 of 7/10 in simplest form.
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Jim is showing his work in simplifying (−8.5 + 6.1) − 1.3.
dexar [7]

9514 1404 393

Answer:

  In step 4, Jim's answer is incorrect.

Step-by-step explanation:

In step 1, Jim swaps the order of addends using the commutative property of addition.

In step 2, Jim uses the distributive property to factor -1 from the final two terms. (The associative property lets Jim move parentheses.)

  6.1 +(-8.5 -1.3) . . . associative property

  6.1 +(-1)(8.5 +1.3) . . . distributive property

In step 3, Jim has used the properties of real numbers to form the sum of two of them.

In step 4, Jim wrote an answer of 1.1, when the answer should have been -3.7. Jim's answer is incorrect.

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The descriptive statements about steps 2 and 4 are both true.

8 0
2 years ago
What is the graph for {3x+5y<10 {x-y<=1
Nostrana [21]
Sounds to me as tho you are to graph 3x+5y<10, and that after doing so you are to restrict the shaded answer area created by the "constraint" inequality x≤y+1.    OR x-1 ≤ y   OR  y≥x-1.  If this is the correct assumption, then please finish the last part of y our problem statement by typing   {x-y<=1}.

First graph 3x+5y = 10, using a dashed line instead of a solid line.

x-intercept will be 10/3 and y-intercept will be 2.  Now, because of the < symbol, shade the coordinate plane BELOW this dashed line.

Next, graph y=x-1.  y-intercept is -1 and x intercept is 1.  Shade the graph area ABOVE this solid line.

The 2 lines intersect at (1.875, 0.875).  To the LEFT of this point is a wedge-shaped area bounded by the 2 lines mentioned.  That wedge-shaped area is the solution set for this problem.
6 0
3 years ago
Help me with this please
11Alexandr11 [23.1K]
63/12 = 4.2

4.2 x 12 = 50.4

x = 50.4
7 0
3 years ago
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