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3241004551 [841]
3 years ago
8

Suppose Y varies directly as X, and Y=21 when X=3. Find X when Y=42

Mathematics
1 answer:
finlep [7]3 years ago
6 0

Answer:

can you make it more clear

Step-by-step explanation:

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Two cylinders are similar. The surface area of one is 49 cm ^ 2 , and the surface area of the other is 121 cm ^ 2 . Find the sca
dalvyx [7]

Answer:

7 : 17.29

Step-by-step explanation:

==>Given:

Two similar cylinders:

Surface area of Cylinder A = 49cm²

Surface area of Cylinder B = 121cm²

==>Required:

Scale factor between both cylinders

==>Solution:

We can easily get the scale factor between both by taking the following steps:

=>Set up a ratio of their surface area:

Smaller cone surface area : larger cone surface area

49:121

= 49/121

=>Simplify the ratio gotten:

Dividing the denominator and the numerator by 7, would give us,

7/17.29

= 7:17.29

8 0
3 years ago
Read 2 more answers
So I need help pls show ur work
Ad libitum [116K]

Answer:

x = – ⅓

Step-by-step explanation:

The solution to the expression can be obtained as follow:

–3.1x + 7 – 7.4x = 1.5x – 6(x – 3/2)

Clear bracket

–3.1x + 7 – 7.4x = 1.5x – 6x + 9

–3.1x – 7.4x + 7 = –4.5x + 9

–10.5x + 7 = –4.5x + 9

Collect like terms

–10.5x + 4.5x = 9 – 7

–6x = 2

Divide both side by –6

x = 2 / –6

x = – ⅓

Thus, the solution to the equation is –⅓

7 0
3 years ago
Prove or disprove that the product of two irrational numbers is irrational
DanielleElmas [232]
Hi. The statement you gave is somewhat true, but not always. I disprove this and there are tons of websites that can help you with more in depth explanation. Have a good day.
6 0
3 years ago
Whats the difference between graphing and writing equations from table, points, and equations,
satela [25.4K]
The difference is that a graph is multiple of them and a table is in sections in points it’s like jotting them down and equations is step-by-step

Hope the help:)
5 0
4 years ago
7 1/6 times 3/4 is??
Paladinen [302]

Answer:

7\frac{1}{8}

Step-by-step explanation:

Multiply across.

(7\frac{1}{6})(\frac{3}{4})=7\frac{3}{24}

Then Simplify.

7\frac{3}{24}=7\frac{1}{8}

8 0
3 years ago
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