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____ [38]
3 years ago
6

I can correctly re-write the expression 56 + 48 as _____

Mathematics
1 answer:
damaskus [11]3 years ago
3 0

Answer:

8(7+6)

Step-by-step explanation:

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Why is the product of two rational numbers always rational?
Mice21 [21]

Let a/b and c/d represent two rational numbers. This means a, b, c,and d are INTEGERS , and b and d are not 0. The product of the numbers is ac/bd , where bd is not 0. Both ac and bd are INTEGERS , and ​ bd ​ is not 0. Because ​ ac/bd ​ is the ratio of two INTEGERS, the product is a rational number.

\frac{a}{b}\cdot \frac{c}{d}= \frac{a\cdot c}{b\cdot d}=\frac{e}{f},\,\,\,\,e,f\in\cal{Z}

7 0
4 years ago
Read 2 more answers
What is the solution of the system? Use elimination. 7x + 5y = 19 −7x − 2y = −16
netineya [11]

Make the coefficient of y the same in both equations:

To do this, multiply equation one by 2, and equation two by 5 (this will make the coefficient 10 in both).

14x + 10y = 38
-35x - 10y = -80


Eliminate the y variable by adding the equations from each other

   (14x + 10y = 38)
+ (-35x - 10y = -80)
=  -21x +  0y  = -42

We now have -21x = -42. The y variable has been eliminated.


Solve for x

-21x = -42

Divide both sides by -21 to get x on its own.

x = 2


Substitute x into the equation to find y.

7*2+5y=19

14+5y=19

Subtract 14 from both sides.

5y=19-14

5y=5

Divide by 5 on both sides to get y on its own.

y=5/5

y=1


The answer is (2,1)


8 0
4 years ago
20% of the rose Annette picked from a rose garden were red if she picked 10 red roses how many roses did she pick from the garde
horrorfan [7]

Answer:

Option A

Annette picked  50 roses  from the garden

Step-by-step explanation:

Let us understand the problem, designating letters to represent unknown quantities.

Let the total number of roses = x

20% of the roses were red means that 20% of x = red

Since the number of red roses = 10,

we will have that 20% of x = 10

mathematically, we will have

\frac{20}{100} \times x = 10\\x= \frac{1000}{20}= 50

hence, Annette picked  50 roses  from the garden

7 0
4 years ago
one box holds 16 crayons another box holds 24 crayons write a sentence using words that compare the crayons in two boxes.
bogdanovich [222]
What is 24-16? That must be the answer
3 0
3 years ago
96% of what number is 24
baherus [9]

Answer:

400

Step-by-step explanation:

24 percent (calculated percentage %) of what number equals 96? Answer: 400.

6 0
3 years ago
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