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Alekssandra [29.7K]
3 years ago
8

A company makes cars at two factories. Some of the cars need repairs in the first year and some do not. This two-way frequency t

able shows the proportion of cars at each factory that need repairs or do not need repairs in the first year. Need repairs in first year Do not need repairs in first year Factory A 0.05 0.95 Factory B 0.02 0.98
Mathematics
1 answer:
Lerok [7]3 years ago
4 0
From the four answers two are correct.
A. Compared to Factory A, B has a larger percentage of cars that do not need repairs.
B. Among cars from factory A, a larger percentage of cars do not need repairs than do need repairs in the first year
Both of these answers are indeed correct.
You might be interested in
Find the mean of the integers -45 -20 -35 -25 -40
maxonik [38]

Answer:

-33

The mean of the data set -45, -20, -35, -25, and -40 is -33.

Hope it helps.

8 0
3 years ago
How many solutions does these equations have? One, infinite or no solutions?
s2008m [1.1K]

Answer:

  • 1. 7(y + 3) = 5y+8: <u>one solution</u>

  • 2. 10 + 6x= 2(5+3x): <u>infinite solutions</u>

  • 3. 3x + 5 - x=2x + 7: <u>no solutions</u>

  • 4. 4x - 4 = 2x + 8: <u>one solution.</u>

Explanation:

<u>1. 7(y+3)=5y+8</u>

<u></u>

a)  Distributive property of multiplication over addtion:

  • 7y + 21 = 5y + 8

b) Subtraction property of equalities:

  • 7y - 5y = 8 - 21

c) Combine like terms:

  • 2y = - 13

d) Division property of division:

  • y = - 13/2

e) Conclusion: the equation has one solution.

<u>2. 10 + 6x = 2(5+3x)</u>

a) Distributive property of multiplication over addition:

  • 10 + 6x = 10 + 6x

b) Subtraction property of equality:

  • 6x - 6x = 10 - 10

c) Simplify (combine like terms)

  • 0 = 0

That is an identity, i.e. that is always true, no matter the value of x.

d) Conclusion: the equation has infinite solutions.

<u>3. 3x + 5 - x = 2x + 7</u>

a) Combine like terms:

  • 2x + 5 = 2x + 7

b) Subtraction property of equalities:

  • 2x - 2x = 7 - 5

c) Combine like terms (simplify)

  • 0 = 2

That is always false, no matter the values of x.

d) Conclusion: the equation does not have any solutions.

<u>4. 4x - 4 = 2x + 8</u>

<u></u>

a) Subtraction property of equality

  • 4x - 2x - 4 = 2x - 2x + 8

b) Combine like terms

  • 2x - 4 = 8

c) Addtiion property of equalities:

  • 2x = 8 + 4

d) Combine like terms (simplify)

  • 2x = 12

e) Division property of equalities:

  • x = 6

f) Conclusion: the equation has one solution

5 0
3 years ago
A square kitchen tile has sides that are 7inches long. What is the tiles perimeter
Kamila [148]

Answer: 28 Inches

Step-by-step explanation:

First draw a square for this. Since the kitchen tile is a square, we only need one side of the shape which in this case it 7in. Then you take this number and input it on all sides. You should have 7in on all sides. Next you write this equation: 7+7+7+7 or 7x4. This will then give you the answer 28. So, the perimeter of the kitchen tile is 28 inches.

4 0
3 years ago
Solve for x<br> -1= √2x-3
kramer

Answer:

x=1.414213

Step-by-step explanation:

7 0
3 years ago
Logarithmic form of 3x = 27.
Korvikt [17]
X=9 because u divide 27 and 3
5 0
4 years ago
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