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Airida [17]
3 years ago
14

How do we know when the sum of two numbers will be 0?​

Mathematics
1 answer:
frosja888 [35]3 years ago
8 0

Answer:

bnm,. n

Step-by-step explanation:

545

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By what percent will the product of two numbers change, if the first number increases by 70%, while the second number decreases
FinnZ [79.3K]

Answer:

2%

Step-by-step explanation:

Let x be the first number

It increases by 70 %

The new number is

m = x+ .70x

   = 1.7x

Let y be the second number

It decreases by 40 %

The new number is

n =y - .40 y

  = .6y


The product of the original numbers is xy

The product of the new number is

mn = (1.7x * .6y) = 1.02xy

The new number is larger than the old number so it is an increase.

Percent increase is  new - original divided by original  times 100%

Percent increase = (1.02 xy - xy)

                                -----------------  * 100%

                                 xy  

                           = .02 xy

                                ------- * 100 %

                                 xy  

                            = .02 * 100 %

                             = 2%



5 0
3 years ago
HELP ASAP!!<br><br> Which equation represents a line which is parallel to the line y = -23 - 1?
Brrunno [24]

Answer: A and D

Explanation -

Parallel lines have the same slope

5 0
2 years ago
True or false? it is possible for a system of linear equations to have exactly two solutions.
maksim [4K]

Answer: False

Systems of linear equations can only have 0, 1, or an infinite number of solutions. These two lines cannot intersect twice. The correct answer is that the system has one solution.

Step-by-step explanation:

4 0
3 years ago
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The ratio of students to adults in a community band is 47 to 53. What percent of the marching band is students?
RSB [31]

Answer:

47%

Step-by-step explanation:

4 0
3 years ago
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Yes... yes it would fit...
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