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2 years ago

25=2y - 15 solve y AND SIMPLIFY HELP ME PLEASEE

Mathematics

2 answers:

sammy [17]2 years ago

8 0

Answer:

y=20

Step-by-step explanation:

25+15=40

2y=40

40/2=20

y=20

AfilCa [17]2 years ago

4 0

Answer:

y = 20

Step-by-step explanation:

25=2y - 15

2y - 15 = 25

2y - 15 + 15 = 25 + 15

2y = 40

2y ÷ 2 = 40 ÷ 2

y = 20

__________________________

2y - 15 = 25

2(20) - 15 = 25

40 - 15 = 25

25 = 25

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lora16 [44]

Answer:

c = 105 degres

Step-by-step explanation:

When two lines cross like that and form an x, the opposite sides are equal (so the angle below the 75 degree one is also 75 degees). Using this, you can figure out the rest.

If both the top an bottom are equal, you know that 150 degres are taken (75+75) and you know that there can only be 360 degres in total here, so you subtract 150 from 360 and get 210. Now you know that the last two sides together are 210, and since they are equal, you divide it by two to get 105 degrees.

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3 years ago

A pendant is formed using a cylinder and cone. Once assembled, as shown below, the pendant is painted. How many square millimete

solmaris [256]

Surface area of cylinder is given by area of circle + area of the rectangle that curved around the cylinder

Area of the base of the cylinder = $\pi r^{2} = 8^{2} \pi =64 \pi$
Area of the cylinder 'wall' = width × length = $12$ × $2r \pi$ = $12$ × $16 \pi$ = $192 \pi$

Note that the wall of the cylinder is in the shape of a rectangle. The width of the rectangle is the height of the cylinder. The length of the rectangle is the circumference of the circle base.

Surface area of cone is given by $\pirl$ where $l$ is the slanted height of the cone

SA of cone = $\pi (8)(10)=80 \pi$

Hence total painted surface area is $80 \pi +192 \pi +64 \pi =336 \pi$

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3 years ago

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Plz Help!!!<br> Will Give Brainliest to the First Person that answers!!!

notsponge [240]

Answer:

Step-by-step explanation: