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Free_Kalibri [48]
3 years ago
9

What is the common ratio of 1/2, 1/10, 1/50, 1/250, 1/1250?

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
5 0
r=\frac{\frac{1}{10}}{\frac{1}{2}}=\frac{1}{10} \times 2= \frac{2}{10}=\frac{1}{5} \\ \\
\boxed{r=\frac{1}{5}}
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1. Use Substitution Method, Show Steps.<br><br> 3x=2y=11 <br> y=5x-1
ladessa [460]
3x=2(5x-1)=11
3x=10x-2=11
-10x -10x
-------------------
-7x=-2=11
       +2   +2
------------------
-7x=13
-----  ------
-7      -7

x= -1.9

4 0
3 years ago
Which expression below are equivalent to 2(2x + 1)
emmainna [20.7K]

Answer:

4x+2

Step-by-step explanation:

you are doing distributive property so the answer could possibly be: 4x+2

7 0
3 years ago
I need help on this please. Don't answer if you don't know, Thanks
lyudmila [28]

Answer:

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Step-by-step explanation:

4 0
3 years ago
What is this number in standard form? <br> (8×100)+(4×1)+(6×1100)+(3×11,000)
Korvikt [17]

Answer:

40404

Step-by-step explanation:

is this helpful????

5 0
2 years ago
Read 2 more answers
Find an equation for the nth term of the arithmetic sequence.
amm1812

Answer:

a_n=-301 +37(n-1)

Step-by-step explanation:

arithmetic sequence formula:  a_n=a +(n-1)d

where a is the first term and d is the common difference

Given:

  a_{10}=32

⇒ a +(10-1)d=32

⇒ a+9d=32

Given:

    a_{12}=106

⇒ a +(12-1)d=106

⇒ a+11d=106

Rearrange the first equation to make a the subject:

a = 32 - 9d

Now substitute into the second equation and solve for d

    (32 - 9d) + 11d = 106

⇒ 32 + 2d = 106

⇒ 2d = 106 - 32 = 74

⇒ d = 74 ÷ 2 = 37

Substitute found value of d into the first equation and solve for a:

a + (9 x 37) = 32

a + 333 = 32

a = 32 - 333 = -301

Therefore, the equation is: a_n=-301 +37(n-1)

4 0
2 years ago
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