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3 years ago

Evaluate [(40 + 5) − 32] ÷ 9 ⋅ 2

Mathematics

2 answers:

chubhunter [2.5K]3 years ago

8 0

Answer: 2.89

Step-by-step explanation:

40+5 is 45

then subtracting 32 from 45 would give you 13.

then 13/9 is something like 1.445

then you multiply by 2 and get 2.89

gogolik [260]3 years ago

7 0

40+5= 45
45-32=13
13/9= 1.44
1.44x2=2.89

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Trucks that travel on highways have to stop at various locations to be weighed and inspected for safe brakes and light systems.

IrinaVladis [17]

Answer:

The reuired probability is 0.756

Step-by-step explanation:

Let the number of trucks be 'N'

1) Trucks on interstate highway N'= 76% of N =0.76N

2) Truck on intra-state highway N''= 24% of N = 0.24N

i) Number of trucks flagged on intrastate highway = 3.4% of N'' = $\frac{3.4}{100}\times 0.24N=0.00816N$

ii) Number of trucks flagged on interstate highway = 0.7% of N' = $\frac{0.7}{100}\times 0.76N=0.00532N$

Part a)

The probability that the truck is an interstate truck and is not flagged for safety is $P(E)=P_{1}\times (1-P_{2})$

where

$P_{1}$ is the probability that the truck chosen is on interstate

$P_{2}$ is the probability that the truck chosen on interstate is flagged

$\therefore P(E)=0.76\times (1-0.00532)=0.756$

5 0

3 years ago

(08.03)A set of equations is given below:

faltersainse [42]

Answer: Third option

$-x + 2 = 3x - 4.$

Step-by-step explanation:

One of the ways of solving a system of equations is by equating the equations and solving for one of the variables.

In this case we have the system:

$y = -x + 2\\\\y = 3x - 4$

Note that if $y$ is equal $-x + 2$ and also $y$ equals $3x - 4$

Then logically $-x + 2$ must be equal to $3x - 4$ .

We write equality.

$-x + 2 = 3x - 4.$

Then the correct answer is the third option.

We can also solve for the variable x

$-4x = -6\\\\4x = 6\\\\x = \frac{6}{4}\\\\x = \frac{3}{2}$

7 0

3 years ago

Read 2 more answers

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Volgvan

Answer:

Step-by-step explanation:

Order shouldn't make any difference.

3 C 4 = 4!/(3! 1!) = 4

Let's see if that is right.

1 2 3

1 2 4

1 3 4

2 3 4

Any other combination will produce a duplicate if order doesn't matter. For example

2 4 3 is the same thing as 2 3 4

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3 years ago

Solve each question -5x + 40= 6x - 70

Finger [1]

Answer:

10=x

Step-by-step explanation:

-5x+40= 6x-70

-5x+110=6x

110=11x

10=x

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3 years ago

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creativ13 [48]

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4 years ago