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statuscvo [17]
4 years ago
15

Let n = 5. What is the value of 10 + 15 ÷ n – 2? A. 3 B. 6 C. 11 D. 15 need help

Mathematics
2 answers:
Nataly_w [17]4 years ago
7 0
11 hope dis helped u fam
oksian1 [2.3K]4 years ago
4 0
The answer is 3, 10+15=25 25÷5= 5 and 5 - 2= 3
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If a train travel a 200 miles in 2.5 hours what is the rate of speed
ivanzaharov [21]
Do distance divided by time to get the speed.
200 / 2.5 = 80.
The speed is 80 miles per hour(mph).

Hope this helps :)
3 0
3 years ago
How do i solve this question
Artyom0805 [142]
First multiply -3 to -5/3. Giving you -14=5+b. Then subtract 5 from both sides to isolate b. -14+5= -9 so b=-9 which is your y-intercept
5 0
3 years ago
A restaurant bill is $25.80. How<br> much is a 20% tip for this bill (NOT<br> the total)?
lozanna [386]

Answer:

25 pesos 80 pw

pesos I'm not sure

Step-by-step explanation:

25. 80

3 0
2 years ago
In a recent survey, 60% of the community favored building a health center in their neighborhood. If 14 citizens are chosen, find
andreev551 [17]

Answer:

Probability that exactly 5 of them favor the building of the health center is 0.0408.

Step-by-step explanation:

We are given that in a recent survey, 60% of the community favored building a health center in their neighborhood.

Also, 14 citizens are chosen.

The above situation can be represented through Binomial distribution;

P(X=r) = \binom{n}{r}p^{r} (1-p)^{n-r} ; x = 0,1,2,3,.....

where, n = number of trials (samples) taken = 14 citizens

         r = number of success = exactly 5

        p = probability of success which in our question is % of the community

              favored building a health center in their neighborhood, i.e; 60%

<em>LET X = Number of citizens who favored building of the health center.</em>

So, it means X ~ Binom(n=14, p=0.60)

Now, Probability that exactly 5 of them favor the building of the health center is given by = P(X = 5)

        P(X = 5) = \binom{14}{5} \times 0.60^{5} \times (1-0.60)^{14-5}

                      = 2002 \times 0.60^{5} \times 0.40^{9}

                      = 0.0408

Therefore, Probability that exactly 5 of them favor the building of the health center is 0.0408.

4 0
3 years ago
Find the height of a square pyramid that has a volume of 75 cubic feet and a base length of 5 feet.
Rudiy27

Answer:

9 ft

Step-by-step explanation:

Let's begin with the formula for the volume of a square pyramid.  If s is the base length, then the area of the base is s^2.  The volume of the pyramid is then V = (1/3)(base area)(height).  We know the volume and the base length (s), and want to find the height.  Solving V = (1/3)(base area)(height)

for height, we get:

3V = (base area)(height), or

    3V

---------------- = height

base area

Substituting 75 ft^3 for V and (5 ft)^2 for base area, we get:

               3(75 ft^3)              9 ft

height = ------------------ = ----------------- = 9 ft

                 25 ft^2                   1

3 0
3 years ago
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