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11Alexandr11 [23.1K]
3 years ago
8

5) Joy and Cullen put some money into their money boxes every week. The amount of money (y), in dollars, in their money boxes af

ter a certain amount of time (x), in weeks, is shown by the equations below: Joy: y = 30x + 20 Cullen: y = 20x + 90
a) After how many weeks will Joy and Cullen have the same amount of money in their money boxes?
b) What is that amount?
Mathematics
2 answers:
Orlov [11]3 years ago
8 0
Week 7 And the amount is 230$
You can check it by getting a Graphing Calculator and Inserting the Equations into y= And Go down the list where x=7 and the two variables are the same Number
ankoles [38]3 years ago
3 0

Answer:

The answer is D trust me i helped my friend Week 7 And the amount is 230$

Step-by-step explanation:

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Triangle A″B″C″ is formed by a reflection over x = −3 and dilation by a scale factor of 3 from the origin. Which equation shows
Allisa [31]

Answer:

  see below

Step-by-step explanation:

Each segment in ΔA"B"C" is 3 times the length of the corresponding segment in ΔABC. This is due to the dilation by a scale factor of 3.

Then you have ...

  \overline{A''B''}=3\overline{AB}\quad\text{or}\\\\\dfrac{\overline{AB}}{\overline{A''B''}}=\dfrac{1}{3}

The latter relation matches the second choice.

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3 years ago
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PLEASE HELP!!<br> Convert each linear equation to standard form.<br> y-4= -2(x+3)
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y-4=-2x-6
Then add 4 to both sides.
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3 years ago
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The explicit rule for a sequence is given. an=4n−1 What is the recursive rule for the sequence?
Gnom [1K]

Answer:

a_{n+1}=a_n+4

Step-by-step explanation:

Have in mind the definition of the term a_n=4\,n-1, and now work on what the term a_{n+1} is based on the previous definition:

a_{n+1} = 4\,(n+1)-1\\a_{n+1}=4\,n+4-1

In the next step do NOT combine the numerical values, but try to identify the a_n term (4\,n-1) in the expression (notice the use of square brackets to group the relevant terms):

a_{n+1}=4\,n+4-1\\a_{n+1}=[4\,n-1]+4\\a_{n+1}=a_n+4

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Express the given logarithm in terms of common logarithms. Then approximate its value to four decimal places.
zhannawk [14.2K]

Answer:

3.4594

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Changing the base from 2 to 10

log_{2} 11 = \frac{log_{10}11 }{log_{10}2 } ≈ 3.4594

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hodyreva [135]

Answer:

∠ FGH = 125°

Step-by-step explanation:

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∠ FGH = 125°

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