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3 years ago

Give one example of when you would use the friendly numbers strategy to subtract. Explain why.

Mathematics

2 answers:

Harman [31]3 years ago

8 0

U can also use agarothim strategy

ziro4ka [17]3 years ago

6 0

In the addition process this usually involves:

rounding numbers up to the nearest multiple of 10 or 100 subtracting the extras that were added at the end.

In the subtraction process this usually involves subtracting too much and completing the calculation by putting some back.

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Pre calc question - Evaluate sec (pi/3) Show work using unit circle

VLD [36.1K]

Answer:

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2 years ago

Read 2 more answers

What is the Greatest common divisor of 378 and 420?

atroni [7]

Answer:

Step-by-step explanation:

When calculating the greatest common divisor, you must look for the smallest divisors that can divide the no. s given simultaneously.

So in this case the smallest divisor will be 2.

378 =189. 420 =210

2. 2

The next divisor that 189 and 210 can both be divided with is 3

189 =63. 210 =70

3. 3

The third smallest divisor that can 63 and 70 can be divided with is 7

63 =9. 70 =10

7. 7

9 and 10 have no common divisors that can divide them fully without leaving a remainder

So to get the greatest common divisor, multiply all the divisors you have used

In this case we've used 2,3,7

2x3x7= 42

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4 years ago

Emily is mowing her lawn which is in the shape of a rectangle with a length of 10 feet and width of 12 feet. Emily completed mow

Keith_Richards [23]

She mowed the lawn in 40 feet per hour

8 0

3 years ago

The volume of oil in four different containers is shown below: container

sdas [7]

Let me help you!
What we have right now:
*A 5.25 milliliters container.
*A 5.29 milliliters container.
*A 5.27 milliliters container.
*A 5.23 milliliters container.
*Sue's measuring cup that can measure to the nearest tenth of a milliliter.

What we need to do:
*Find out the least amount of oil after Sue used her measuring cup to measure each oil container.

Solution:
Container A: 5.25mL ---> 5.3mL
Container B: 5.29mL ---> 5.3mL
Container C: 5.27mL ---> 5.3mL
Container D: 5.23mL ---> 5.2mL <---- This is what we are looking for!

Therefore, the correct answer and the container which has the least amount of oil is: D. 5.23 milliliters container.

I hope this helped you :>

6 0

3 years ago

One way to build stairs is to attach triangular blocks to an angled support, as shown at the right. If the support makes a 32Â°

Sauron [17]

Answer: m∠1 = 32°
Step-by-step explanation:
Since we have given that
The angled support making angle with the floor = 32°
So, we need to find the measure of angle 1 so that the steps are parallel to the floor.
As we know that "To make parallel to the floor , there should be alternate interior angle which must be equal."
So, m∠1 = 32° ( the angled support making angle with the floor)
Hence, m∠1 = 32°

5 0

3 years ago