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3 years ago

The temperature dropped 15 degrees in an hour. If the starting temperature was 10 degrees, what was the final temperature?

1 answer:

7 0

Answer: If we're talking about the final temperature in 1 hour, then the final temperature would be -5 degrees. 10-15= -5.

You might be interested in

What is the solution to the system of equation 5x-2y=21 3x+4=10

anygoal [31]

Answer:

3x+4=10

3x=10-4

3x=6

3x/3=6/3

x=2

5x-2y=21

5(2)-2y=21

10-2y=21

-2y=21-10

-2y=11

-2y/-2=11/-2

y=11/-2

8 0

4 years ago

A group of students formed a circle during a game. The circumference of the circle was about 43.96 feet, and the diameter of the

Tpy6a [65]

Answer:

c)7/43.96

Step-by-step explanation:

a) 43.96/7

b)43.96/14

c)7/43.96

d)14/43.96

7 0

4 years ago

Read 2 more answers

Multiply. 1/4 x 32 =

Solnce55 [7]

Simply change 1/4 to a decimal
1/4 = 0.25
now we can multiply 0.25 and 32
lets do the math:)
0.25 x 32 = 8
your answer = 8

When in doubt, eat a pineapple :)

6 0

3 years ago

Read 2 more answers

Is 3.4 a rational or irrational number? Please explain why, thanks.

Nady [450]

Rational, 3.4 can be written as a fraction and is noncontinuous
"An irrational number can be written as a decimal, but not as a fraction. An irrational number has endless non-repeating digits to the right of the decimal point."

6 0

3 years ago

Read 2 more answers

In an experiment to measure the lifetimes of parts manufactured from a certain aluminum alloy, 73 parts were loaded cyclically u

kari74 [83]

Answer:

0.0094.

Step-by-step explanation:

For the given experiment, let X be the lifetimes of parts manufactured from a certain aluminum alloy.

sample size =73

Sample mean = 784

Sample standard deviation = 120

Let µ represent the mean number of kilocycles to failure for parts of this type.

Null hypothesis, H0 : µ ≤ 750

Alternative hypothesis, H1 : µ > 750.

$z=\dfrac{\overline{X}-\mu}{\frac{s}{\sqrt{n}}}$

where,

$\overline{X}$ is sample mean.

$\mu$ is population mean.

s is sample standard deviation.

n is the sample size.

$z=\dfrac{783-750}{\frac{120}{\sqrt{73}}}$

$z=2.35$

It is a right tailed test because alternative hypothesis is µ > 750. So, P-value is the probability of observing a sample mean greater that 783 or the probability of P(z>2.35).

$P=P(z>2.35)$

$P=1-P(z$

$P=1-0.9906$

$P=0.0094$

Therefore the P-value is 0.0094.

5 0

3 years ago