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Harlamova29_29 [7]
3 years ago
10

Hello! My brother thinks that 5/6 times 3/5 is 15 on his homework, but he just wants to make sure. does anyone know that using c

ommon denominator, is this the right answer?
Mathematics
2 answers:
Mamont248 [21]3 years ago
7 0

Answer:

it is 5/6

Step-by-step explanation:

DochEvi [55]3 years ago
7 0

Answer:

the answer is 1/2 or 0.5

Step-by-step explanation:

i used a calcuater to solve this im sorry i dont know how to solve it by useing common denominator

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In the left column: how was the numerical part of the answer found (addition, subtraction )
Setler79 [48]
You can find the numerical part of the answer because it is the same on the right side.

For example:
 ¹      <<==== Regrouped
  89
+
  67
---------
146   <<=== I had to press space so I could position it.

So that also happens in subtraction, the left side can be found by doing the same steps in the right column.
For example:

67
-                    <<=== this time there was no regrouping
12
-------
55




5 0
3 years ago
9.3+b=−42 , you would subtract 9.3 to isolate the variable.
Rama09 [41]

Answer:

yeh you are correct so it will be b is equal to minus 42 minus 9.3 that will be equal to -51.3 so that is the value of b

5 0
3 years ago
Rewrite in radical form (-243)2/5
nadezda [96]

Answer:

243 and 2 over 5

Multiply

(−243) and 2 over 5 . −486 over 5.

Move the negative in front of the fraction.

−486 over 5

Exact Form:

-486 over 5

Decimal Form:

-97.2

Mixed Number Form:

-97 and 1 over 5

7 0
3 years ago
4/5 + 3/4 =
marshall27 [118]

The topics you should learn are equating denominators and fractions. This is summing up simple fractions.

So we have to make denominators' numbers the same in order to sum up them all (we can sum fractions if the denominators are the same) , and we did it by cross product (that thing on the picture)

Equating by lcm (least common multiple) is the easiest way, because you might see bigger numbers on other questions, and cross product will bring much bigger numbers, so this technic might confuse you.

By the way lcm of 4 and 5 is already 20

Hope it helps!

5 0
3 years ago
Use the following figure to answer the question. if line t is perpendicular to both line l and m then 1 and 2 are both right ang
stepan [7]

It's true, assuming that angles 1 and 2 are are at the intersection of line t and l/m

8 0
3 years ago
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