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3 years ago

What 42 rounded to the nearest ten

Mathematics

1 answer:

Savatey [412]3 years ago

4 0

Answer:

Step-by-step explanation:

the tens value is the 2 value from the left of a decimal point.

Examples: 32 67.4 2345 904

In your case, the tens value is 4

We need to look at the ones value to see if we need to round up or down

Because the ones value, 2, is less than 5, we keep the tens value, so it's 40

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Find the perimeter of the figure.

gulaghasi [49]

Answer:

27in

Step-by-step explanation:

So, perimeter means we add all the sides together, as opposed to area, where we multiply them together.

9 - 5 = 4.

So the perimeter of the triangle would be:

3+4+ $\sqrt{3^2+4^2}$ =12

5 + 5 + 4 +1 (the 1 is from 4 -3) = 15

15 + 12 = 27

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3 years ago

Assume the cost of a car is $25,000. With continuous compounding, in effect, the cost of the care will increase according to the

Masja [62]

The value of t that makes the factor e^(.032t) have the value of 2 can be found using logarithms.
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3 years ago

A business man mixed high quality sugar costing 10 shillings with low quality sugar costing 8 shillings per kg in the ratio 3:5

11111nata11111 [884]

Answer:

His percentage profit is 12%

Step-by-step explanation:

Here, we want to calculate the percentage profit made by the business man.

Per kg of what he is selling, he has 3 parts high quality sugar and 5 parts low quality sugar.

Now let’s see how much these costs

For the high quality sugar, it’s total kg mixed per kg will be 3/(3+5) = 3/8

Since high quality sugar costs 10 shillings per kg, 3/8 of a kg will cost 3/8 * 10 = 30/8 = 3.75 shillings

For the low quality, its part will be 5/(3 + 5) = 5/8

since low quality costs 8 shillings per kg, 5/8 of a kg will cost 5/8 * 8 = 5 shillings

Total cost price = 3.75 + 5 = 8.75 shillings

% profit = (selling price - cost price)/cost price * 100%

selling price here is 9.8 shillings per kg

while cost price is 8.75 shillings per kg

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3 years ago

Use Descartes' Rule of Signs to determine the possible numbers of positive and negative real zeros of f (x )equals x cubed plus

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Answer:

Step-by-step explanation:

All of the terms have positive signs, so there are no sign changes. Zero sign changes means there are zero positive real roots.

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3 years ago

If a marble is randomly chosen from a bag that contains exactly 6 purple marbles, 4 blue marbles, and 10 green marbles, what is

irina [24]

6 purple, 4 blue, 10 green

"What is the probability that the marble picked will not be green?"

Well, simply all the purple and blue together :)

6 + 4 = 10

So, 10 marbles are not going to be green.

So, 10 green, 10 non-green.

So, our probability is 10 : 10

Which, simplified, is 1 : 1

~Hope I helped!~

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3 years ago

What 42 rounded to the nearest ten​

What 42 rounded to the nearest ten