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3 years ago

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A weather balloon is at an altitude where the temperature is 3 degrees Celsius. The balloon ascends 900 ft with a decrease in te

mperature of 5 degrees Celsius. The balloon then ascends again with a decrease in temperature of 3 degrees Celsius.
What is the final temperature?

1 answer:

makkiz [27]3 years ago

4 0

This should be in textbook

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Mark for Review

ioda

Answer:

12 seconds

Step-by-step explanation:

Given

$y = -2.5x + 30$

Required

Determine the time taken to reach the ground

For the paper to reach the ground, y = 0

So, we have:

$y = -2.5x + 30$

$0 = -2.5x + 30$

Collect Like Terms

$2.5x +0 = 30$

$2.5x = 30$

Divide through by 2.5

$2.5x/2.5 = 30/2.5$

$x = 30/2.5$

$x = 12$

<em>Hence:</em>

<em>Time taken is 12 seconds</em>

5 0

4 years ago

Carly is making 3 1/2 batches of biscuits. If one batch calls for 2 1/3 cups of floor, how much flour will she need?

Papessa [141]

In this question, Carly needs to make 3.5 batches of biscuit and one batch equal to 2 1/3 cups of flour. Then you will get an equation look like this:

1 batch of biscuit= 2 1/3 cups of flour

Then 3.5 batches of cookies would be:
3.5 batches of biscuit * (2 1/3 cups of flour/ batch of biscuit)= 49/6 cups of flour= 8.16 cups of flour

3 0

3 years ago

Help lol please i don’t know which one it is

Lana71 [14]

Answer:

I think your correct

Step-by-step explanation:

8 0

4 years ago

State whether set of ordered pairs represent a function

antoniya [11.8K]

<u>Answer:</u>

No, the given set of pairs does not represent a function

<u>Step-by-step explanation:</u>

For a set of values to be a function, each input must have one and only one output value

Now, for the given set, we can note that:

The input -13 has two output values; 4 and 9

<u>Therefore</u>, this set is not a function

Hope this helps :)

3 0

3 years ago

Suppose your family spent $2438.67 on home energy last year. Estimate the amount spent on heating and cooling, rounded to the

Minchanka [31]

Answer:

The answer is "1200".

Step-by-step explanation:

The percentage value for $\frac{heating}{cooling}= (48 \% )$

So,

$\to 2438.67 \times \frac{48}{100} \\\\\\\to 117,056.16 \times \frac{1}{100}\\\\\to 1170.5616\\\\$

rounding the value into the nearest hundred =1200

6 0

3 years ago