How is using mental math to add with decimals like using mental math to add whole numbers

Answers

Answer 1

Answer: The use of mental method to add with decimals is similar to the mental method we used to add whole numbers because the decimals number can also change to whole numbers.
This is the reason the mental method for both are similar. we can also use the same process for decimal numbers and whole numbers.

Answer 2

Answer:

Answer: Using mental math to add with decimals is like using mental math to add whole numbers because the actual thing is we are adding the place values in both the cases and they different as in case of whole numbers we start from the ones place but in case of decimal numbers we first separate it into whole numbers and decimals to add by using mental math separately, after solving the sum we write both parts together and that is the answer.

For example to add 4.50+9.20

Take after decimal portion separately 0.50+0.20=0.70

and 4+9=13

write together it becomes 13.70.

so 4.50+9.20=13.70.

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A farmer wants to fence a section of land for a horse pasture. Fencing costs $27 per yard. How much will it cost to fence the pasture?

Answers

find the perimeter of the fence multiply by 27$ I'd give the answer but it's missing information

Answer:

what is it

Step-by-step explanation:

How is the number 2 in 582 similar to the 2 in the number 528

Answers

Answer:

Step-by-step explanation:

If we look at both the numbers that are 582 and 528, "2" appears like similar but actually its different in both the numbers. As in 528, the number is worth 20 as 2 is in the tens place, whereas in 582, the worth of the number is 2 as the 2 is in ones place. Therefore, it seems like 2 is same in both the numbers but has different worth in actual.

In the number 582, the 2 has a value of 2.
In the number 528, the 2 has a value of 20.

Similarities...
1) Both divisible by 2.
2) Both divisible by 1.
3) Both are even numbers.

( PLEASE HELP) The points (3,-2) (-3,-2) and (-3,6) are the vertices of a triangle. Find the perimeter of the triangle. (Hint: Use the Pythagorean theorem to find the length of the hypotenuse.

Answers

Look at the picture.

$x^2=6^2+8^2\n\nx^2=36+64\n\nx^2=100\to x=√(100)\to x=10$

The perimeter of the triangle:

$P_\Delta=6+8+10=24$

7 3/4 = x/8
A. 1/4
B.62
C.1/62
D.4

Answers

Answer:

The answer for 7 3/4 = x/8 is B. 62

Hope this helps and have a great day!

It is B.62 is the answer

Which circles have a circumference of 20pi units? Choose all answers that are correct. a) a circle with a diameter of 40 units; b) a circle with a radius of 10 units; c) a circle with a diameter of 20 units; d) a circle with a radius of 20 units?

Answers

So, keep in mind that for a circle, circumference equals pi times the diameter. So, C=pi*d. In this problem, 20pi=pi*d. We can solve for d by dividing both sides by pi, for inverse operations: 20pi/pi=(pi*d)/pi. d=20. So, the diameter is 20 units. Finally, keep in mind that the radius is half the diameter. So, the radius is 20/2 units, or 10 units.

Answer: B, C

The radius of Pluto is about 1,145.Find the length of Pluto's equator

Answers

Curcumference= 2xPixR
Two times Pi times Radius. So....
Two times Pi equals about 6.28 times the Radius equals 7194.25.

ANSWER 7194.25

think the answer is 2290. I think this because the radius is half of a circle. It is asking for the diameter(equator). 1,145+1,145=2290.

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