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jonny [76]
3 years ago
7

Formulate a system of equations that could be solved by multiplying one equation by 5 and then adding the two equations together

to eliminate one of the variables.
Mathematics
1 answer:
rjkz [21]3 years ago
4 0
\ \ \ 5 \ (-\frac{1}{5} a = 10 - b) \\ + (2a = 5b -20) \\ \\ a = 30

5× the first equation + the second equation will give an equation of 'a' to its value.
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What would be the total number of outcomes in each sample space?
Lerok [7]

Answer:

810

Step-by-step explanation:

In this case the sample space would be the number of combinations that can be made with the numbers from 1 to 30 with the letters of the alphabet, from "a" to "z", for example:

A1, A22, C4, F9, etc

Now we know how many numbers are 30, now the alphabet has 27 letters, therefore, the number of combinations are:

27 * 30 = 810

Which means that the total number of results is 810.

3 0
3 years ago
PLEASE HELP ILL MARK U THE BRAINLIEST IT IS URGENT AND ITS GEOMETRY DONT WASTE ANSWERS PLEASE
Verdich [7]

Answer:

∠Q = ∠U = 60°

Step-by-step explanation:

Construct the figure QSUT with your own dimensions as long as QR ≅ RU and SR ≅ RT , where R is the common midpoint.

I choose QR = 4 cm and SR = 5  cm

Then measure ∠Q and ∠U to check if they are equal.

I got that ∠Q = ∠U = 60° proving that;

∠Q ≅ ∠U

6 0
2 years ago
Please help me I will give thanks and points!
makkiz [27]
1.31, 1.4, and 1.44.

Hope I helped☺☺
6 0
3 years ago
Help me with this ASAP plz!!
evablogger [386]

Answer:

Rate of change = 2 & Initial value = -1

7 0
2 years ago
Are the graphs of the lines in the pair parallel? Explain. y = 6x + 9 27x – 3y = –81
olga nikolaevna [1]
For the 2nd equation, you need solve for y to get it by itself so once thats done you get y=9x+27 but since the x values (also the slope) aren't equal, they can't be parallel
7 0
3 years ago
Read 2 more answers
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