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2 years ago

Write the word sentence as an equation. Then solve the equation.

Mathematics

2 answers:

klio [65]2 years ago

7 0

Answer:

k = 34 - 7

k = 27

Step-by-step explanation:

increased by 7 = 34 which is means,

this number was 27

The solution is Equation: k = 34 - 7

Solution: k = 27

lesya692 [45]2 years ago

4 0

Answer:

Step-by-step explanation:

Here's the complete question:

Write the word sentence as an equation. Then solve the equation. A number k increased by 7 is 34.

An increase in k simply means that there's an addition. This will be:

k + 7 = 34

k = 34 - 7

k = 27

Therefore, the value of k is 27

Step-by-step explanation:

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Find the length of the side marked x

ruslelena [56]

it's a right angled triangle so we will use hypotenuse formula to get the value of x

hypotenuse formula = a² + b² = c²

a = side of the triangle

b = base of traingle

c = hypotenuse ( can be written as h too)

and the formula can also be written as.

c² = a² + b²

therefore, x = 12.1

hope this answer helps you dear...take care!

3 0

2 years ago

-3/2(x - 5) = -12.

Alchen [17]

Answer:

x=13

Step-by-step explanation:

6 0

3 years ago

Fish story: According to a report by the U.S. Fish and Wildlife Service, the mean length of six-year-old rainbow trout in the Ar

Yanka [14]

Answer:

11.29.

Step-by-step explanation:

We are given that The mean length of six-year-old rainbow trout in the Arolik River in Alaska is 478 millimeters with a standard deviation of 38 millimeters.

We are also given that these lengths are normally distributed.

So, The highest value is at mean .(Refer the attached figure).

Formula : $Percentile = \frac{Length}{Maximum} \times 100$

$54 = \frac{Length}{478} \times 100$

$\frac{5400}{478} =Length$

$11.297 =Length$

The 54th percentile of the lengths is 11.29.

4 0

3 years ago

Suppose that four microchips in a production run of fifty are defective. A sample of six is to be selected to be checked for def

Irina-Kira [14]

Answer:

a) 15,890,700 different samples can be chosen

b) 6,523,881 will contain at least one defective chip

c) 41.1%

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the microchips are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

(a) How many different samples can be chosen?

Samples of 6 from a set of 50.

Then

$C_{50,6} = \frac{50!}{6!(50-6)!} = 15890700$

15,890,700 different samples can be chosen

(b) How many samples will contain at least one defective chip?

Either a sample contains no defective chip, or it contains at least one. From a), the sum of them is 15890700.

Then

No defective chips:

Four are defective.

So 50-4 = 46 are not.

This is samples of 6 from a set of 46.

$C_{46,6} = \frac{46!}{6!(46-6)!} = 9366819$

9,366,819 samples contain no defective chips.

At least one:

9366819 + n = 15890700

n = 6523881

6,523,881 will contain at least one defective chip

(c) What is the probability (as a percent) that a randomly chosen sample of six contains at least one defective chip

6,523,881 out of 15,890,700

6,523,881/15,890,700 = 0.411

As a percent

41.1%

8 0

2 years ago

While shopping for clothes, Curtis spent $44 less than 3 times what Jaclyn spent. Curtis

Vaselesa [24]

Just multiply 44 times 3 the you should get your answer

3 0

3 years ago