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Shalnov [3]
3 years ago
9

Determine the smallest integer that makes -3x + 7 - 5x < 15 true.

Mathematics
2 answers:
Effectus [21]3 years ago
7 0

Answer:

smallest possible value for x = 0

Step-by-step explanation:

An integer value is 0, 1, 2 and so on.

The smallest integer is 0.

-3x + 7 - 5x = -8x +7

consider y = -8x +7 and look at the y-axis and then specifically below 15 and then search for the smallest integer value ( meaning 0 or 1 or 2 and so on ).

y = ax + b

y = -8x + 7

a = -8

b = 7

a few points on that line:

(-1, 15) (0, 7) (1, -1) (2, -9)

You can see that for x = 0 you get the smallest INTEGER value of y = 7.

So x=0 is your answer!

Kisachek [45]3 years ago
4 0

Answer:

-1

Step-by-step explanation:

write it in the following manner:

-3x + 7  - 5x = 15

-8x + 7 = 15

-8x = 8

x = -1

Thus, the number has to be smaller than -1.

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15.24 x 1.64 the answer needs to be converted from us dollars to British pounds and can i have steps to plz
olga2289 [7]

Answer:

19.334

Step-by-step explanation:

First I multiplied.

15.24 x 1.64 = 24.9936

Then I convert my answer to British pounds.

24.9936 = 19.334 British Pound Sterling

Have a blessed day and hope this helps.

7 0
3 years ago
If the graph of function g is 6 units below the graph of function f, which could be function g?
Olegator [25]
The answer is b because 2-8 is that
4 0
4 years ago
Mother is m years old, and she is four times as old as her daughter. How much older is the mother than her daughter?
yuradex [85]

The mother is older than her daughter by \frac{3}{4}m years

Step-by-step explanation:

Mother is m years old, and she is four times as old as her daughter.

we need to find how much older the mother is than her daughter

  • Put the age of mother equal 4 times the age of daughter
  • Find the age of daughter
  • Subtract the age of daughter from the age of mother to find how much older the mother than her daughter

∵ The mother's age = m

∵ Her age is four times as old as her daughter

∴ m = 4 × daughter's age

- Divide both sides by 4

∴ \frac{1}{4}m = daughter's age

- Subtract the daughter's age from her mother's age

∵ The difference of their ages = m - \frac{1}{4}m

- Change 1 m to a fraction of denominator 4, then 1 m = \frac{4}{4}m

∴ The difference between their ages = \frac{4}{4}m - \frac{1}{4}m = \frac{3}{4}m

∴ The mother is older than her daughter by \frac{3}{4}m years

The mother is older than her daughter by \frac{3}{4}m years

Learn more:

You can learn more about the fractions in brainly.com/question/1648978

#LearnwithBrainly

5 0
3 years ago
A random sample of 20 purchases showed the sample mean of $48.77 and the sample standard deviation s is $17.58. How large is the
laila [671]

Answer:

<h2>$5.03</h2>

Step-by-step explanation:

Given data          

Sample Mean (M):  $48.77  

Sample Size (n): 20

Standard Deviation (σ) :  $17.58

Confidence Level: 80%

 we know that z*-Values for 80% Confidence  Levels is 1.28

the expression for margin of error is given bellow\

MOE= z*σ/√n

We can now substitute into the expression and solve for the MOE as

MOE= 1.28*17.58/√20

MOE= 22.502/4.47

MOE= 22.502/4.47

MOE= 5.03

The margin of error for a 80 % confidence interval is $5.03

3 0
4 years ago
4. Seven times the difference of a number k and five is twenty-onel
laila [671]

Answer:

k = 8

Step-by-step explanation:

7(k - 5) = 21

k - 5 = 3

k = 8

Hope this helps!

4 0
3 years ago
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