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kvv77 [185]
1 year ago
15

What is the formula for equations. ​

Mathematics
1 answer:
alexandr402 [8]1 year ago
8 0

<u>A formula is a fact or rule that uses mathematical symbols. It will usually have: an equals sign (=) two or more variables (x, y, etc) that stand in for values we don't know yet</u>.

Example: The formula for finding the volume of a box is:

x = 2y - 7 Formula (relating x and y)

a2 + b2 = c2 Formula (relating a, b and c)

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Can someone please help me with part B?
Ira Lisetskai [31]
Y = - 20x + 100

Slope is -20, y-intercept is 100.
4 0
3 years ago
A cylinder has a radius of 20 cm and a height of 2 cm. Find the height of another cylinder that has a radius of 4 cm and the sam
iogann1982 [59]

Answer:

The height of the another cylinder 'h'  = 7

Step-by-step explanation:

<u>Explanation</u>:-

<u>Step 1:-</u>

Surface area of the cylinder  = 2пrh + 2пr^2

Given radius of first cylinder is 20cm

given height of the first cylinder is 2 cm

The surface area of first cylinder is = 2пrh + 2пr^2

                                                          = 2п(20)(2)+2п(2)^2

                                                          = 4п(20+2)

The surface area of first cylinder is  88п

<u>Step 2</u>:

given data The surface area of first cylinder is  88п is same as second cylinder also

<u>Find the height of the second cylinder</u>

Given Radius of the second cylinder r = 4

Surface area of the cylinder  = 2пrh + 2пr^2 = 88п

                                                   2п(4)h+2п(4)^2 =88п

on simplification we get

                                   2п (4h+16) = 88п

after cancellation '2п' value and on simplification, we get

                                    4h+16 = 44

                                    4h = 44-16

                                  4h = 28

                                 h=7

Therefore the height of the another cylinder is 'h' =7

                                   

3 0
3 years ago
A shipping company charges $6 to skip a package that weighs up to 1 pound and $2 for each additional pound or portion of a pound
navik [9.2K]

Step-by-step explanation:

A shipping company charges $6 to ship a package that weighs up to 1 pound and $2 for each additional pound or portion of a pound.

lets make an assumption that the total weight of the shipment is x pound and cost for shipping is y.

the shipping company charges $6 for the first pound.

Up to now the charge is y=6

After 1 pound, i.e for the remaining (x-1) pounds, they charge $2 per pound.

So, the total charge will be, y=6+2(x-1)

weight is always starting from zero as there is no negative weight.so X>0

so the equation is 6(2x-1), where X is more than 0

8 0
3 years ago
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How many solutions does the equation have?<br><br> 9z + 10 = 1 – 15 + 3z
Troyanec [42]

Answer:

there is only 3 solution for this equation

Step-by-step explanation:

I hope this is right!

8 0
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What is the value of x in this equation: 4x+5=3x+4<br><br>​
zavuch27 [327]
Move everything to one side, it becomes negative
3x+4-4x-5
=-x-1
6 0
2 years ago
Read 2 more answers
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