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2 years ago

Substititue 5 for x. Is the solution true? 3x + 4 - x = 4x - 6

Mathematics

1 answer:

Aloiza [94]2 years ago

3 0

Answer:

It's a true solution.

Step-by-step explanation:

$3(5) + 4 - 5 = 4(5) - 6$

$15 + 4 - 5 = 20 - 6$

$19 - 5 = 14$

$14 = 14$

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What is the area of a trapezoid if the base is 5, 17, 5 and height is 4

Snowcat [4.5K]

Answer:

Step-by-step explanation:

Trapezoid

Solve for area

A=44

a Base

b Base

h Height

7 0

3 years ago

The table shows the amounts of food collected by two homerooms. Homeroom A collects 21 additional items of food. How many more i

Andreyy89

Let x be additional food item the homeroom B should collect to have greater item per student than homeroom A.

(22 +24 + x) / 16 > (30 + 42 + 21) /24

(22 +24 + x) > 3.875 (16)

X > 16

So they should collect more than 16 food item to have a greater item per student

5 0

3 years ago

D + 4/3 = -1/3 find d.

vovangra [49]

Answer:

d= -5/3

Step-by-step explanation:

d + 4/3 = -1/3

d= -4/3 -1/3

d= -5/3

4 0

3 years ago

Read 2 more answers

The computer that controls a bank's automatic teller machine crashes a mean of 0.6 times per day. What is the probability that,

professor190 [17]

Answer:

0.2103 = 21.03% probability that, in any seven-day week, the computer will crash less than 3 times.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given interval.

Mean of 0.6 times a day

7 day week, so $\mu = 7*0.6 = 4.2$

What is the probability that, in any seven-day week, the computer will crash less than 3 times? Round your answer to four decimal places.

$P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)$

In which

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-4.2}*(4.2)^{0}}{(0)!} = 0.0150$

$P(X = 1) = \frac{e^{-4.2}*(4.2)^{1}}{(1)!} = 0.0630$

$P(X = 2) = \frac{e^{-4.2}*(4.2)^{2}}{(2)!} = 0.1323$

$P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.0150 + 0.0630 + 0.1323 = 0.2103$

0.2103 = 21.03% probability that, in any seven-day week, the computer will crash less than 3 times.

3 0

3 years ago

In gym class students were asked to form six equal groups. If there were 18 students in each group, then how many total students

Contact [7]

Answer:108

Step-by-step explanation:

18 times 6 is 108

7 0

2 years ago