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Sliva [168]
3 years ago
13

Help me pleaseeeeeeeeeeeeeeeeeeeeee

Mathematics
1 answer:
slava [35]3 years ago
5 0

The answer is C. 1/5 and 1

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 Solve the system, using any method.  y = x + 2 and x + 2y = 25
Leni [432]
Elimination\ method\\\\\left\{\begin{array}{ccc}y=x+2&|subtract\ "x"\ from\ both\ sides\\x+2y=25\end{array}\right\\+\left\{\begin{array}{ccc}-x+y=2\\x+2y=25\end{array}\right|add\ the\ equations\ sides\ \\\----------\\.\ \ \ \ \ \ \ 3y=27\ \ \ \ \ |divide\ both\ sides\ by\ 3\\.\ \ \ \ \ \ \ \ \ \ y=9\\\\subtitute\ y=9\ to\ second\ equation\\x+2(9)=25\\x+18=25\ \ \ \ \ \ \ |subtract\ 18\ from\ both\ sides\\x=7\\\\Solution:x=7\ and\ y=9\to(7;\ 9)

3 0
3 years ago
Read 2 more answers
Look at the triangular prism. Work out the volume of the prism.
xz_007 [3.2K]

Answer:

See explanation

Step-by-step explanation:

The question has missing details, as the diagram of the prism is not shown.

However, I'll solve using a general rule.

The volume of a triangular prism is:

Volume = \frac{1}{2}* b * h * l

Where

b = base

h = height

l = length

Take for instance:

b = 20cm

h = 10cm

l = 5cm

The volume is:

Volume = \frac{1}{2} * 20cm * 10cm * 5cm

Volume = 10cm * 10cm * 5cm

Volume = 500cm^3

Another instance (see attachment).

From the attachment:

b = 4.5cm

h = 5cm

l = 8cm

The volume is:

Volume = \frac{1}{2} * 4.5cm * 5cm * 8cm

Volume = 2.25cm * 5cm * 8cm

Volume = 90cm^3

7 0
3 years ago
HELP ASAP!! I know the answer, but I need work to go along with the problem!
algol13

This is what it shows for the solution. Hope this helps.

7 0
3 years ago
Convert 3.92 into mixed fraction in simplest form
anygoal [31]
3.92=3+0.92=3+\frac{92}{100}=3+\frac{92:4}{100:4}=3+\frac{23}{25}=\boxed{3\frac{23}{25}}
8 0
3 years ago
The image point of A after a translation right 1 unit and down 2 units is the point B (9,3). Determine the coordinates of the pr
oksano4ka [1.4K]

Alright, it went 1 to the right and down 2 times.

So for point B, you calculate the opposite.

Point B goes 1 left while going up by 2.

(9 - 1, 3 + 2) = (8, 5)

Pre-image point A is (8, 5)

7 0
3 years ago
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