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meriva
3 years ago
15

Evaluate the expression 3m - 5 when m = 7

Mathematics
1 answer:
tia_tia [17]3 years ago
4 0

Answer:

16

Step-by-step explanation: Plug in 7 for m, so 3(7)-5, which is 21 -5, which results in 16.


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5.5% of x =19.84<br>find x​
Olin [163]

Answer: 360.73

Step-by-step explanation:

When you come across any question that says [a of b] is just saying a × b.

5.5% of x=5.5% × x

-----------------------------------------------------------------

Given

5.5% of x=19.84

Converted into numerical expression

5.5% × x=19.84

Divide both sides by 5.5% (0.055)

x=19.84 ÷ 5.5%

simplify

x=360.73 (rounded)

4 0
3 years ago
Read 2 more answers
There is a​ 10% chance of the mean​ oil-change time being at or below the sample mean for which there is an area of 0.10 to the
Zarrin [17]
The probability that a normally distributed data with a mean of μ and a standard deviation of σ is less than a value x is given by:

P(X\ \textless \ x)=P\left(z\ \textless \  \frac{x-\mu}{\sigma} \right)

Given that μ = 16.5 and σ = 0.804984 and that the probability that the <span>mean​ oil-change time being at or below the sample mean for which there is an area of 0.10 to the left under the normal curve, then:

P\left(z\ \textless \  \frac{x-16.5}{0.804984} \right)=0.1\\  \\ \Rightarrow P\left(z\ \textless \  \frac{x-16.5}{0.804984} \right)=P(z\ \textless \ -1.281) \\  \\ \Rightarrow\frac{x-16.5}{0.804984}=-1.281 \\  \\ \Rightarrow x-16.5=-1.281(0.804984)=-1.031 \\  \\ x=-1.031+16.5=15.47</span>
6 0
4 years ago
Identify the domain of the function.<br> (-4,4)<br> [-4,4)<br> (-4,4)<br> (-4, 4)
Vlad1618 [11]
All real numbers I think
3 0
3 years ago
How fast would you be going if you traveled 100 miles in 1/2 an hour?
Akimi4 [234]

Answer: 200 miles per hour

Step-by-step explanation:

200miles per 60 minuets

1/2 hour = 30 minuets

200/0.5 = 100

Therefore, to travel 100 miles in 1/2 an hour you would have to be going 200 miles per hour.

3 0
3 years ago
Plzzz help me it would mean a lot I willl mark you brainliest if you are right plz and ty ​
emmasim [6.3K]

Answer:

45

Step-by-step explanation:

x÷3=15

=×*1/3=15

=x=15*3

x=45

8 0
3 years ago
Read 2 more answers
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