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Ede4ka [16]
3 years ago
11

Can you help me sort these out please

Mathematics
1 answer:
wolverine [178]3 years ago
5 0
A 75% increase followed by 33.33%  goes under less than the original
A 30$ increase followed by a 30$ decrease goes under same as the original
A 55% decrease followed by 25% increase goes under greater than the original
100% increase followed by a 50% decrease goes under less than the original
20% decrease followed by a 40% increase goes under greater than the original
You might be interested in
Which matrix represents the system of equations shown below? 3x-5y=12 4x-2y=15
tatuchka [14]

Answer:

\left[\begin{array}{ccc}3&-5  &|12\\4&-2  &|15\\\end{array}\right]

Step-by-step explanation:

When making a matrix of two equations with the variables x and y, the result will be a matrix with three columns:

  • a column for the values of x in each equation
  • a column for the values of y in each equation
  • a column for the independent values of each equation

since our system of equations is:

3x-5y=12\\ 4x-2y=15

we can see that the value for x in the first equation is 3 and in the second equation is 4, thus the first column will have the numbers 3 and 4:

\left[\begin{array}{ccc}3&&\\4&&\\\end{array}\right]

Now for the values of y we hvae -5 in the first equation and -2 in the second equation, we update the matrix with another column with the values of -5 and -2:

\left[\begin{array}{ccc}3&-5&\\4&-2&\\\end{array}\right]

Finally, the last column is the independent values of each equation (or the results) in the first equation that number is 12 and in the second equation is 15, thus the matrix is:

\left[\begin{array}{ccc}3&-5&12\\4&-2&15\\\end{array}\right]

usually there is a line separating the columns for the values of x and y, and the independent values:

\left[\begin{array}{ccc}3&-5  &|12\\4&-2  &|15\\\end{array}\right]

this is the matrix of the system of equations

6 0
3 years ago
5. The half-life of Po-210 is 140 days. If the initial mass of the sample is 5
Anit [1.1K]

Answer:

1.25kg

Step-by-step explanation:

useing the problem the half life equation will be:

f(x)=5(0.5)^(x/140)

x is amount of days

so plugging in 280 for x will get 1.25kg

6 0
2 years ago
The equation y - 2 = 3(x + 1) is in point-slope
attashe74 [19]
Y-2=3x+3
Then add two
So y=3x+5
Hope this helps sorry if wrong
5 0
3 years ago
Mr. Standford’s greenhouse has the dimensions shown. The volume of the greenhouse is 90 cubic yards. Find the missing dimension
salantis [7]

Hey read the image I have attached. Ignore what I am typing here I need to type 20 characters.

3 0
3 years ago
Evaluate t Divided 3/4 for T equal 9 3/4
Molodets [167]
T / 3/4 ; t = 9 3/4

9 3/4 / 3/4

9 3/4 = 39/4

39/4 / 3/4
39/4 x 4/3
39 x 4 = 156
4 x 3 = 12
156/12 / 4/4 = 39/3 = 13
7 0
3 years ago
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