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Contact [7]
3 years ago
8

does anyone know how to help me with the letters in math, i dont understand it, and i need help, someone please? if you can can

you tell me in step by step?
Mathematics
2 answers:
kiruha [24]3 years ago
7 0
When letters are used in math, it is usually concerning algebra. If you can give me an equation, I would be happy to explain how to solve it.
galina1969 [7]3 years ago
3 0

Answer:

Step-by-step explanation:

Letters are variables and those variable can store a number

Ex: x=5  y=2

evaluate : 3x+2y

we know that x is 5, so we know that 3x would be 15

we know that y is 2, so we know that 2x would be 4

then it says to add 3x and 2y, we would add 15 and 4 to get 19

(This is a very simple example, when you get older, the expression would be much more confusing.

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The center of a circle is located at (3, 8), and the circle has a radius that is 5 units long. What is the general form of the e
n200080 [17]
Center of the circle: C=(3,8)=(h,k)→h=3, k=8
Radius of the circle: r=5
Standard form of the equation for the circle:
(x-h)^2+(y-k)^2=r^2
(x-3)^2+(y-8)^2=5^2
(x-3)^2+(y-8)^2=25

General for of the equation for the circle:
(x)^2-2(x)(3)+(3)^2+(y)^2-2(y)(8)+(8)^2=25
x^2-6x+9+y^2-16y+64=25
x^2+y^2-6x-16y+73=25
x^2+y^2-6x-16y+73-25=25-25
x^2+y^2-6x-16y+48=0

Answer: The general form of the equation for the circle is:
x^2+y^2-6x-16y+48=0
4 0
4 years ago
What is the common factor for 9 and 11
asambeis [7]

The gcf of 9 and 11 is 1.

3 0
3 years ago
if the texting portion of your plan for $15 a month and you said 500 text messages in a month how much does it cost per text
pantera1 [17]
15/500=0.05
$0.05 per text

Hope this helps :)
6 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Nonamiya [84]

Answer:

black = 0.28

white = 0.22

pink = 0.24

blue = 0.26

Step-by-step explanation:

Jason and his friend spun the spinner 100 times total. So for each time landed on a color, it can be counted as one percentage (for example, black had a 28% frequency). To transfer percentages to decimal form, simply bring the decimal point over by two spaces (28 becomes 0.28, something like 4 would become 0.04). Hope this helps! Feel free to ask any questions!

3 0
3 years ago
If i walk 4 miles per hour how long will it take to walk a mile
fiasKO [112]
Hi there! The answer is 15 minutes.

Walking 4 miles per hour means that it takes you 60 minutes to walk 4 miles. To find the time it takes you to walk 1 mile, we must divide both sides by 4.

4 miles equals 60 minutes.
1 mile equals 60 / 4 = 15 minutes.

The answer is 15 minutes.
4 0
4 years ago
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