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2 years ago

4/5 + 8/10 plz help with this

Mathematics

2 answers:

SIZIF [17.4K]2 years ago

6 0

4/5+8/10
8/10+8/10
16/10
1 6/10
1 3/5

Lemur [1.5K]2 years ago

5 0

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Which expression is equivalent to -2 1/4÷ (-2/3)

Talja [164]

Answer:

$-2\dfrac{1}{4}\div\left(-\dfrac{2}{3}\right)=\dfrac{27}{8}=3\dfrac{3}{8}}$

Step-by-step explanation:

$-2\dfrac{1}{4}\div\left(-\dfrac{2}{3}\right)\qquad\text{the quotient of two negative numbers is positive}\\\\=2\dfrac{1}{4}\div\dfrac{2}{3}\qquad\text{convert the mixed number to the improper fraction}\\\\=\dfrac{2\cdot4+1}{4}\div\dfrac{2}{3}=\dfrac{9}{4}\div\dfrac{2}{3}\\\\\text{dividing by a fraction is the same as multiplying by its reciprocal.}\\\\=\dfrac{9}{4}\cdot\dfrac{3}{2}=\dfrac{9\cdot3}{4\cdot2}=\dfrac{27}{8}\qquad\text{convert to the mixed number}\\\\=3\dfrac{3}{8}$

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3 years ago

Solve for x. 32xy=w. can you please help with this problem

algol [13]

$x =\frac{w}{32y}$

7 0

2 years ago

A set of numbers satisfies Benford’s Law if the probability of a number starting with digit d is P(d) = log(d + 1) – log(d).

irakobra [83]

Interpreting the graph and the situation, it is found that the values of d that can be included in the solution set are 1 and 4.

----------------------

According to Benford's law, the probability of a number starting with digit is d is:

$P(d) = \log{(d + 1}} - \log{d}$

A number can start with 10 possible digits, ranging from 1 to 9, which are all integer digits.

Thus, d can only assume integer digits.

In the graph, the solution is d < 5.
The integer options for values of d are 1 and 4.
For the other options that are less than 5, they are not integers, so d cannot assume those values.

A similar problem is given at brainly.com/question/16764162

8 0

1 year ago

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What is the equation of the parabola with a directrix at y = -4 and focus (0, 4)?

Mashcka [7]

Answer: this is Judy Heckman you answered a question about a parabola graph and someone went off of it before I could study it. Help thanks

Step-by-step explanation:

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3 years ago

the sum of four consecutive integers is 2174. what are the integers? (continuation) the smallest of four consecutive integers is

timofeeve [1]

The smallest of the four numbers is x.
Since the four numbers are consecutive, this means that each number is one more than the previous.
Therefore, the four numbers are:
x
x + 1
x+1 + 1 = x+2
x+2 + 1 = x+3

Now, we are given that the sum (s) of the four numbers is 2174
This means that:
s = x+x+1+x+2+x+3
s = 4x + 6

We are given that s = 2174. Substitute with s in the above equation and solve for x as follows:
2174 = 4x + 6
4x = 2174 - 6
4x = 2168
x = 2168 / 4
x = 542

Based on the above calculations, the four numbers are:
542, 543, 544 and 555

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2 years ago

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