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Julli [10]
3 years ago
13

True or false, the product of two rational numbers is never equal to 1.

Mathematics
1 answer:
galina1969 [7]3 years ago
5 0
The answer is true the product of two rational numbers is never equal to 1
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Joel needs to buy some blank DVDS and zip disks to back up a large amount of data that has been generated by an accounting firm.
wlad13 [49]

Answer:

D = 4, Z = 24

Step-by-step explanation:

6D+3Z = 96

5D+4Z = 116

multiply top by 5 and bottom by -6

top equation = 30D+15Z = 480

bottom equation = -30D-24Z = -696

Cancel 30D and -30 D

top equation  = 15Z = 480

Bottom equation = -24Z = -696

15Z - 24 Z = 480 - 696

-9Z = 216

Z = 216/9

Z = 24

Now that we have the value of Z, we can substitute it in any equation to find D

6D + 3(24) = 96

6D + 72 = 96

6D = 96 - 72

6D = 24

D = 24/6

D = 4

4 0
3 years ago
A customer ordered a product online for $299 and was charged an additional $10 for shipping and handling. The customer received
swat32

Answer:

$192.4

Step-by-step explanation:

First, we'll work out what the customer had to pay before tax.

That's

299+10-99-25\\=185(USD)

4% of 185 is 7.4,

So the customer paid

185+7.4\\=192.4(USD)

6 0
2 years ago
Multiply 4x(-3x - 5)
Scilla [17]
Using the distributive property the product is -12x-20. To distribute you take the numbers and or variables outside of the paranthesis and multiply it by each one in the parenthesis  such that 4x is multiplied by -3x getting -12x and multiplying 4x by -5 and the product is -20x and all together the answer is -12x-20
6 0
3 years ago
Read 2 more answers
Pls help it due soon <br> Show workings!
mel-nik [20]

Answer:

A

Step-by-step explanation:

So the triangle rule is that the 2 smaller sides of a triangle have to have a greater sum than the largest side.

I answer a 1+2 has to be greater than 3 and its not therefore A is the answer

3 0
3 years ago
Help me I need help plsss
Brums [2.3K]
Debt is negative, growth is positive, and elevation is a zero
3 0
3 years ago
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