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statuscvo [17]
3 years ago
10

If 9x x 3x+1 = 2187, what is the value of x?​

Mathematics
1 answer:
Snezhnost [94]3 years ago
7 0

Answer:

x = 80.96

Step-by-step explanation:

9x * 3x +1 = 2187

27x +1 = 2187

27x = 2187-1

27x = 2186

x = 2186/27 = 80.96(2dp)

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Can someone help me answer this?
lbvjy [14]

Answer:

(30,60)

90mph

Step-by-step explanation:

5 0
3 years ago
Can anyone pls helppppp
dalvyx [7]
Hourly rate:
39(1.3r) = 541.80
(hours times hourly rate equals profit)

then solve
1.3r = 13.89
r = 10.69

the hourly rate is $10.69


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4 0
3 years ago
Solve for x.<br> 8(5 + x) = 11(9 + x)<br> Answer as a fraction.
7nadin3 [17]

distribute the 8 to the 5 and x. then distribute 11 to 9 and x.

(40+8x)=(99+11x)

-11x -11x

-3x+40=99

-40 -40

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divide three on both sides

x=59/-3

final answer x=-59/3


8 0
4 years ago
6.
denpristay [2]

Answer:

15n=135

Step-by-step explanation:

first, you need to know how much of the total amount is the money needed for soccer balls, to find this you take the amount of a soccer ball and multiple it by the amount of people

14×15=210

then you subtract that from the total amount to get the amount spent on jerseys.

345-210=135

to get the amount of each jersey you take 135 and divide by the amount of people

135÷15=9

4 0
3 years ago
Determine whether the following sampling is dependent or independent. Indicate whether the response variable is qualitative or q
NeTakaya

Answer:

1. option D

2. option A

Step-by-step explanation:

Independent samples are samples that are selected randomly so that its observations do not depend on the values other observations. Thus, this sampling is independent. The sampling is independent because an individual selected for one sample does not dictate/affect which individual is to be in the second sample.

The variable is qualitative because it is an attribute classification. A qualitative variable are variables that are not numerical. It describes data that fits into categories (personality type).

3 0
3 years ago
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