If the temperature at 8:00a.m.
was 22°F,
and at 4:00
p.m.
the same day, it was
–2°F,
what was the average temperature decrease
per hour during this period?

Answers

Answer 1

Answer: $From\ 8:00\ am\ to\ 4:00\ pm\ there\ is\ 8\ hours\n\n22-(-2)=22+2=24F\n\n24:8=3\n\nTemperature\ decrease\ 3F\ per\ hour.$

Answer 2

Answer:

Answer:

22F

Step-by-step explanation:

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A number is chosen at random from 1 to 10. What’s the probability of selecting a odd number

Answers

Answer:

There is a 50% chance of selecting an odd number.

Step-by-step explanation:

Total number of possibilities = 10.

We want to find Probability of selecting odd:

Favourable possibilities are:

1 or 3 or 5 or 7 or 9. (Total 5 possibilities).

Therefore Probability = 5 / 10 = 1/2 or 50%.

Answer: 1/2

What is the final balance for the investment? $1200 for 3 years at 3% compounded annually A.
$1311.27

B.
$72.00

C.
$2636.40

D.
$1272.00

Answers

The amount is $1311.27 and the interest is $111.27.

To get to work, matt walks 0.75 miles from his house to the bus stop and rides the bus 3.8 miles to his office. if he walks at a pace of 3.6 miles per hour and the bus drives at an average speed of 15 miles per hour, how long is his commute?

Answers

4.16666667 is what i got

The number of hours required to do a painting job is represented by the function f(x)=2x , where f(x) gives the number of hours and x is the number of painters doing the job. How much time will {4, 10, 14, 16, 18} workers take to do the job?

Answers

4. 8
10. 20
14. 28
16. 32
18. 36

What is the GCF of 22 and 32?

1
2
4
6

Answers

All factors of 22 are
1,2,11,22
all factors of 32 are
1,2,4,8,16,32
You can see that the greatest common factor is 2.

Express
$2 ^( - 7)$
using a positive exponent.

Answers

Answer:

$(1)/(2^7)$

Step-by-step explanation:

To express the number 2⁻⁷ with a positive exponent, we'll make use of the properties of exponents and their relationship with reciprocals.

$\hrulefill$

Here's a list of the exponent properties:

$\boxed{\left\begin{array}{ccc}\text{\underline{Properties of Exponents:}}\n\n1.\ a^0=1\n\n2.\ a^m * a^n=a^(m+n)\n\n3.\ a^m / a^n \ ((a^m)/(a^n) )=a^(m-n)\n\n4.\ (ab)^m=a^mb^m\n\n5.\ (a/b)^m=a^m/b^m\n\n6.\ (a^m)^n=a^(mn)\n\n7.\ a^(-m)=1/a^m\n\n8.\ a^(m/n)=(\sqrt[n]{a} )^m\end{array}\right}$