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Lerok [7]
3 years ago
6

How many solutions does this equation have? 9x + 2 3 = 3x + 3

Mathematics
2 answers:
saul85 [17]3 years ago
6 0

Answer:

Only one solution my boiiii

makvit [3.9K]3 years ago
4 0

Answer:

Step-by-step explanation:

9x + 23 = 3x + 3

9x - 3x = 3 - 23

6x = -20

x = -20/6

x = - 10/3

x = -3 1/3

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Malcolm and Ravi raced each other. The average of their maximum speeds was 260\text{ km/h}260 km/h260, space, k, m, slash, h. If
nikdorinn [45]

Let m and r represent the maximum speeds of Malcolm and Ravi in km/h, respectively.

... (m + r)/2 = 260 . . . . . the average of their speeds was 260 kph

... 2m = r + 80 . . . . . . . . double Malcolm's speed is 80 kph more than Ravi's

The second equation can be solved for r and that expression substituted into the first equation.

... 2m - 80 = r . . . . . . . . . . . an expression for r from the second equation

... (m + 2m - 80)/2 = 260 . . . the result of substituting that into the first

... 3m - 80 = 520 . . . . . . . . multiply by 2

... m = 200 . . . . . . . . . . . . . add 80 and divide by 3

... 2·200 - 80 = r = 320 . . .substitute the value of m into the expression for r

Malcolm's maximum speed was 200 km/h.

Ravi's maximum speed was 320 km/h.

6 0
3 years ago
What is the answer of 2 1/3 - 2/3 and an estimate pls
Lubov Fominskaja [6]

Answer:

\frac{5}{3} or 1.7 as a decimal (1.6 repeating)

Step-by-step explanation:

4 0
2 years ago
I am not good at algebra so I REALLY NEED HELP WITH THE PROBLEM 8n+4n^2-8n!
NeX [460]

Answer:

4n^2

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8n+4n^2-8n

The first 8n + the other 8n is 0 because you combine like terms

6 0
3 years ago
A company wants to determine the level of interest among its employees for an annual summer picnic. The company wants to survey
Alja [10]

Answer: Use employee identification numbers to randomly select 200 employees

Step-by-step explanation:

Random sampling refers to a sampling technique whereby each sample has an equal chance of being selected. It is an unbiased representation of the entire population and this is vital in drawing conclusion.

From the options given, the best way to randomly choose these 200 employees will be to use employee identification numbers to randomly select 200 employees.

7 0
3 years ago
How to solve 2/10b=99
soldier1979 [14.2K]
Multiply both sides by 10.
2b=990
divide both sides by 2
b= 495
6 0
3 years ago
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