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3 years ago

The sum of two numbers is 30. the difference of the two number is 4. what number is lesser

Mathematics

1 answer:

4vir4ik [10]3 years ago

5 0

The lesser number is 13.

Step-by-step explanation:

Step 1 :

Let x represent the first number and y represent the second number

Given, sum of 2 numbers = 30

So we have,y + x = 30

The difference of the 2 numbers = 4

so x - y = 4

Step 2 :

Adding the 2 equations obtained in step 2 we have,

2 x = 34 => x = 17

x + y = 30 => y = 30-x= 30 - 17 = 13

Step 3 :

Answer :

So 17 and 13 are the 2 numbers.

The lesser number is 13.

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Please help

MrRa [10]

Answer:

About 99.7% of births would be expected to occur within 51 days of the mean pregnancy length

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Standard deviation = 17.

About what percentage of births would be expected to occur within 51 days of the mean pregnancy length?

51/17 = 3.

So, within 3 standard deviations of the mean.

About 99.7% of births would be expected to occur within 51 days of the mean pregnancy length

4 0

3 years ago

when 1770 is divided into 14 equal parts, the remainder is 6. what is the correct way to write th quotient

Anuta_ua [19.1K]

__6__
14 /1770. that's it if that's what ya needed.

4 0

3 years ago

Let r = "I like pancakes," s = "I like syrup," and t = "I like honey." Write this sentence in symbolic form: I like pancakes, an

Rzqust [24]

Answer:

$r\wedge(s\oplus t)$

Step-by-step explanation:

The given statements are

r = "I like pancakes," s = "I like syrup," and t = "I like honey."

Given statement is "I like pancakes, and I like syrup or honey, but not both".

We need to find a symbolic form of the given statement.

If p and q are two statements, then

$p\wedge q$ means p and q are true.

$p\oplus q$ means either p or q are true, but not both.

Using this symbols we can say that,

I like syrup or honey, but not both = $s\oplus t$

I like pancakes, and I like syrup or honey, but not both = $r\wedge(s\oplus t)$

Therefore the required the symbolic form is $r\wedge(s\oplus t)$ .

3 0

4 years ago

Here it is again. Please help me

igomit [66]

Answer:

First question: A, Second question: B

Step-by-step explanation:

0.5= 1/2

0.25= 1/4

0.4= 2/5

Now, insert these numbers, as fractions, back into the equation:

$\frac{1}{4}- \frac{1}{2}+ \frac{1}{2}- \frac{1}{4}+ \frac{3}{5}+ \frac{2}{5}$

Following PEMDAS you will get 1 as your answer.

7 0

3 years ago

Convert m= -1 and (9,4) to slope intercept form

Inga [223]

Answer:

Write in slope-intercept form,

y=mx+b. y=−x+13

Step-by-step explanation:

8 0

3 years ago

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