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2 years ago

Solve the system of linear equations by substitution.What is the solution to x=2y+y and 3x+2y=3

Mathematics

1 answer:

gulaghasi [49]2 years ago

5 0

Answer: the first one is 3y

Step-by-step explanation:

Go to the website mathpapa , type in the problem and it gives you the answer with steps

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Hello everyone… Please answer … Let's solve a little logic : )

morpeh [17]

Answer:

Step-by-step explanation:

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2 years ago

Determine the value of x?

olga2289 [7]

Answer:

x=38 degrees

Step-by-step explanation:

supplemental angle to 114 degrees is 66 degrees

180=x+2x+66

3x=114

x=38 degrees

7 0

2 years ago

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Determine the volume of the figure. Use 3.14 for π. Round your answer to the nearest tenth. Show all of your work.

Ostrovityanka [42]

Answer:

1985 cubic units (written as un. with the cubed exponent)

Step-by-step explanation:

First, you find the volume of the cylinder

Here's the formula:

$V=\pi r^{2}h\\V=volume\\r=radius\\h=height$

Now, you plug in and solve.

$V=(3.14)(7.2^{2})(7.4)\\V=(3.14)(51.84)(7.4)\\V=(162.7776)(7.4)\\V=1204.55424\\rounded:\\V=1204.6$

Then, you find the volume of the dome.

Here's the formula:

$volume/of/a/sphere=\frac{4}{3}\pi r^{3}\\volume/of/a/dome:\\V=\frac{2}{3}\pi r^{3} \\V=volume\\r=radius$

Now, you just plug in and solve.

$V=(\frac{2}{3})(\pi)(r^{3})\\V=(\frac{2}{3})(3.14)(7.2^{3})\\V=(\frac{2}{3})(3.14)(373.248)\\V=(2.093)(373.248)\\V=781.208064\\rounded:\\V=781.2$

Finally, you add them together, and there's your answer!

$1204.6+781.2=1985.8$

Hope this helped!

<em>brainliest?</em>

8 0

2 years ago

Find unit rate for 51 in 14 min.

wariber [46]

Its going to be .27ths of an inch for 1 minute.

7 0

2 years ago

Read 2 more answers

Please help (the question is in the attached image)

Alex73 [517]

Answer:

a.the length of midsegment of an equilateral triangle with side lengths of 12.5 cm.=12.5/2=6.25cm

sinceUT is the perpendicular bisector of line segment AB, where T is on AB, find the length of AT given AT = 3x + 6 and TB = 42 - x.

than AT=BT

3x+6=42-x

3x+x=42-6

x=36/4=9

AT=3×9+6=27+6=33

since angle EFG has angle bisector FH, where EF = GF, find the value of y if EH = 5y + 10 and HG = 28 - y.

EH=GH

5y+10=28-y

6y=28-10

y=18/6=3

5 0

2 years ago