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777dan777 [17]
3 years ago
8

One more than three times a number is the same as four less than double a number

Mathematics
1 answer:
brilliants [131]3 years ago
3 0

Answer:

3x + 1 = 2x - 4.  x = -5

Step-by-step explanation:

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The price of 3 books is Rs.330 . How many such books can be bought for Rs.550 ?
AysviL [449]
330/3= 110
550/110=5

Answer is 5 books
5 0
3 years ago
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The sum of three consecutive odd integers is 17 less than four times the smallest integer
Lilit [14]

x = smallest \: int \\ x + (x + 2) + (x + 4) = 4x - 17 \\ 3x + 6 = 4x - 17 \\ 23 = x \\ numbers = 23 \: 25 \: 27
4 0
3 years ago
Two​ researchers, Jaime and​ Mariya, are each constructing confidence intervals for the proportion of a population who is​ left-
soldi70 [24.7K]

Answer:

Jaime's. Interval not centered around the point estimate.

Step-by-step explanation:

When constructing a confidence interval based on a point estimate, the obtained point estimate must be the central value of the interval.

For Jaime's interval

Lower bound = 0.078

Upper Bound = 0.193

Central = \frac{0.078+0.193}{2} =0.1355

For Mariya's interval

Lower bound = 0.051

Upper Bound = 0.189

Central = \frac{0.051+0.189}{2} =0.12

For a point estimate of 0.12, only Mariya's interval is adequate since Jaime's is not centered around the point estimate.

4 0
2 years ago
What is ​ BC ​ ?<br><br><br> Enter your answer in the box.
tangare [24]
Lines AB and AC are equal so you set up an equation like so...
4x + 1 = 2x + 23
Subtract 1 from both sides.
4x = 2x + 22
Subtract 2x from both sides.
2x = 22
Divide.
x = 11
Now you need to plug in 11 into 3x - 8.
3(11) - 8
= 33 - 8
= 25
So BC is 25.
I hope this helps love! :) 
5 0
3 years ago
When is the difference of two decimals an integer?
Oduvanchick [21]

The time the difference between two decimals is an integer is when the decimal value is the same for both numbers. For example, 1.20 - 0.20 = 1. 1.20 and 0.20 are decimals while 1 is an integer. 0.20 is the decimal value while 1 is the whole number.

8 0
3 years ago
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