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garri49 [273]
3 years ago
10

lyle bought 3/8 pound of red grapes and 5/12 pound of green grapes. how much pounds of grapes did he buy

Mathematics
2 answers:
professor190 [17]3 years ago
6 0
He bought 19/24 pounds of grapes.   

   3          5 
-------  + ------- = 0
   8         12

In adding fractions. 
Step 1: make sure the denominators are the same. 8 and 12 are not the same. But both are factors of 24. 

8 * 3 = 24
12 * 2 = 24

Multiply both numerator and denominator of 3/8 by 3 and 5/12 by 2.

 3 * 3                5 * 2           9         10         
---------      +    -------------  = -------- + --------- 
8 * 3                12 * 2         24        24        

Step 2. Since the denominator is now the same, add the numerator and put it over the denominator.

9 + 10       19          
---------- =   -------
   24          24

Step 3. Simplify the fraction.

19 
----
24   is already the simplified form.

Paha777 [63]3 years ago
6 0
3/8+5/12=19/24 This is already in its lowest term
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Solve the equation in two different ways. Choose one method of solving in detail 5x+7(x+1) = 5x - 21
frozen [14]

Answer:

METHOD 1:

5x+7(x+1)=5x-21

5x+7x+7=5x-21

12x+7=5x-21

12x-5x=-21-7

7x=-28

x=28/7

x=4

METHOD 2:

5x+7(x+1)=5x-21

5x+7(x+1)=5x-21-5x

7(x+1)=-21

7x+7=-21

7x=-28

x=4

Step-by-step explanation:

METHOD 1:

5x+7(x+1)=5x-21

5x+7x+7=5x-21

12x+7=5x-21

12x-5x=-21-7

7x=-28

x=28/7

x=4

METHOD 2:

5x+7(x+1)=5x-21

5x+7(x+1)=5x-21-5x

7(x+1)=-21

7x+7=-21

7x=-28

x=4

6 0
3 years ago
8 + 8( 8 - n ) = 40 + 8n
Ierofanga [76]

n=2

8+8(8-n)=40+8n (distribute 8 through the parenthesis)

8+64-8n=40-8n (add the numbers)

<em>72-</em>8n=40+8n (move the variable to the left side and change its sign)

<em>72</em><em>-</em>8n+8n=40

-8n+8n=40<em>-72</em> (connect like terms)

-16n = -32 (divide both sides by -16)

<u><em>n=2</em></u>




7 0
3 years ago
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arlik [135]

Answer:

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Step-by-step explanation:

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3 years ago
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Alexeev081 [22]
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This point is also known as the origin

The reason why is because every direct variation equation is of the form y = k*x
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If we plugged in x = 0 it leads to y = k*x = k*0 = 0. So (x,y) = (0,0)
4 0
3 years ago
A market sold two packages of sliced beef weighing 1 and one seventh and 4 and one half lb. What was the total weight of the bee
Pepsi [2]

Answer:

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Step-by-step explanation:

convert the numbers into improper fractions

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