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I am Lyosha [343]
3 years ago
7

Sofia is driving to Texas. She travels at 70 kilometers per hour for 2 hours, and 63 kilometers per hours for 5 hours. Over 7 ho

urs time period what was sofia's average speed ?
Mathematics
1 answer:
Vladimir79 [104]3 years ago
4 0

Answer:

65 kph

Step-by-step explanation:

There were a total of 7 hours. So two hours were at 70 and the other 5 hours at 63: the equation would be: (70+70+63+63+63+63+63)/7=65

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Solve for p<br><br> 16 - 3p = 2/3p + 5
Nookie1986 [14]

P = 3

Step-by-step explanation:

Multiply both sides by 3

48-9p=2p+15 

Add 9p to both sides

48=2p+15+9p48=2p+15+9p

 Simplify 2p+15+9p2p+15+9p to 11p+15

48=11p+15 

Subtract 15 from both sides

48−15=11p

Simplify 48-15 to 33

33=11p

Divide both sides by 11

\frac{33}11=p​11/​​33​​=p

Simplify 11​​/33​​ to 3

3=p

Switch sides

p=3

Kono Dio Da!!!

4 0
4 years ago
Read 2 more answers
I NEED THIS ANSWERED AS SOON AS POSSIBLE! How much material is needed to construct a triangular tent that is 6 feet wide, 4 feet
Elena-2011 [213]

To figure out this problem, you need to find the surface area of a triangular prism.

a=5ft

b=5ft

c=6ft

h=8ft

A= (a*h) + (b*h) + (c*h) + 1/2√-a⁴ + 2(a*b)² + 2(a*c) - b⁴ + 2(b*c) - c⁴

=152 square feet

5 0
4 years ago
A bookstore had 60 copies of a magazine. Yesterday, it sold 2/3 of them. Today, it sold 4/5 of what remained. How many copies do
laiz [17]

Answer:

4 copies

Step-by-step explanation:

After yesterday's sales, 1/3 of the original supply remained. After today's sales, 1/5 of that value remain. So the remaining number is ...

60·(1/3)(1/5) = 60/15 = 4

4 0
3 years ago
The mean life of a television set is 123 months with a standard deviation of 19 months. If a sample of 55 televisions is randoml
sp2606 [1]

Answer:

1- P(-0.47 < z < 0.47) = 0.63836

Step-by-step explanation:

Here, we want to get the answer to;

1-P ( -0.47 < z < 0.47)

Mathematically, we are going to use the standard normal distribution table for this

Let us try to evaluate;

P(-0.47 < z < 0.47)

Mathematically, that will be;

P (z < 0.47) - P(z < -0.47)

where P (z < -0.47) = P( z > 0.47)

so we have

P(-0.47 < z < 0.47) = P(z < 0.47) - P(z > 0.47)

So we have this using the standard normal distribution table as follows;

0.68082 - 0.31818 = 0.36164

Now, we can insert this in the earlier expression of;

1- P(-0.47 < z < 0.47)

= 1-0.36164 = 0.63836

4 0
3 years ago
What is the sum of \-2 and \-18
Dominik [7]

Answer:

-20

Step-by-step explanation:

-2 + -18 = -20

3 0
3 years ago
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