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Korolek [52]
3 years ago
9

What is the value of x? Enter your answer in the box. x =

Mathematics
2 answers:
ElenaW [278]3 years ago
7 0

Answer:

x = 20

Step-by-step explanation:

Since there's 2 lines intercepting each other, the angle opposite of the other is the same.

3(20) + 50 = 110

6(20) - 10 = 110

Illusion [34]3 years ago
7 0

Answer:

3x+50=6x-10

50+10=6x-3x

60=3x

Devide both side by 3 then x=20

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Edeena is packing equal numbers of apple slices and grapes for snacks. Edeena bags the apple slices in groups of 9. what is the
Norma-Jean [14]
Answer: 3

Because the lowest factor of 9 is 3.
8 0
3 years ago
What is the solution to 89+k=-42
fiasKO [112]
Subtract 89 from -42. k=-131
6 0
3 years ago
Read 2 more answers
Safety regulations require that the time between airplane takeoffs (on the same runway) will be at least 3 minutes. When taking
Alenkinab [10]

Answer:

1.96 planes

Step-by-step explanation:

The computation of the number of planes is shown below:

As we know that

System Inventory  is

= Flow rate in the system × Throughput time

where,

Flow rate is

= Frequency of taken off

= 16 planes ÷ hour

= 16 ÷ 60 Planes per minute

Throughput time  is

=  runway waiting time + runway Run time

= 33 seconds +  6 minutes × 60 seconds + 48 seconds

= 441  seconds

= 441  per 60 seconds

Therefore the number of planes is

= \frac{441}{60} \times \frac{16}{60}

= 1.96 planes

4 0
3 years ago
Babcock and Marks (2010) reviewed survey data from 2003–2005 and obtained an average of μ = 14 hours per week spent studying by
Dmitry [639]

Answer:

We do not have enough evidence to accept H₀

Step-by-step explanation:

Normal Distribution

size sample  =  n = 64   (very small sample for evaluating population of 5  years

Standard deviation 4,8

1.- Test hypothesis

H₀             null hypothesis        ⇒               μ₀ = 14       and

Hₐ     alternative hypothesis   ⇒                μ₀ ≠ 14

2.- z(c)  we assume α = 0,05  as we are dealing with a two test tail we should  consider   α/2  = 0.025.

From z table we the z(c) value

z(c) = 1.96           and of course by symmetry   z(c) = -1.96

3.- We proceed to compute z(s)

z(s)  = [ (  μ -  μ₀ ) /( σ/√n) ]           ⇒    z(s)  = - (1.5)*√64/4.8

z(s)  = - 2.5

We compare z(s)  and z(c)

z(s) < z(c)     -2.5  < -1.96  meaning  z(s) is in the rejection zone

we reject H₀ .

From the start we indicate sample size as to small for the experiment nonetheless we found that we dont have enough evidence to accept H₀

6 0
3 years ago
What are the solutions of the system? Solve by graphing. y=x^2-2x-1, y = -2
pychu [463]
I used desmos online.

(1,-2)
5 0
3 years ago
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