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kirza4 [7]
2 years ago
14

Solve the proportion x/18=7/21​

Mathematics
1 answer:
Crank2 years ago
4 0

Answer:

x=6

Step-by-step explanation:

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If 16 cups equals one gallon than one 1/4 gallon equal cups
hoa [83]
Well...this is a proportion problwm. for every 16 cups I have 1 gallon, so I can write that as:

16 cups
-----------
1 gallon

this value will be proportional to 1/4 a gallon equal "so many" cups. let's equal the unknown about of cups to x.

16 cups______ x cups
-----------.... = ..... ----------
1 gallon _____ 1/4 gallons

I can cross multiply to find x.

1 gallon • x cups = 16 cups • 1/4 gallons

16 times 1/4 is the same as 16/4, which equals 4.

1 gallon • x cups = 4 cups gallons

divide both sides by gallons

x cups = 4 cups

so! 1/4 of a gallon equals 4 cups.
8 0
4 years ago
How is a line of best fit drawn? Describe how you decide where to put it.
Gnoma [55]

Answer:

A line of best fit is a straight line going through a trend on a scatter plot.

Step-by-step explanation:

A well drawn line of best fit is just a line going straight through the trend of dots to approximate an exact trend from a non-exact plot, so just draw a line that stays in the middle of the dots and you should do great.

Hope this helped!

3 0
3 years ago
Find the surface area of the solid given the net
vivado [14]
Surface area = 17*(sqrt(1155) + 19)

h^2 = 19^2 - 17^2/4
=> h = sqrt(4*19^2 - 17^2)/2 = sqrt(1155)/2
Surface area = 4(1/2*h*17) + 17*19 = 17(sqrt(1155) + 19)
7 0
3 years ago
Please answer the question below
alexira [117]

Answer:

11

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Quick math help? Thanks!
denpristay [2]
For
|a|>15
assume
a>15
a<-15

so
x+6>15
minus 6
x>9

x+6<-15
minu 6
x<-21

B is answer
4 0
3 years ago
Read 2 more answers
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