Split 2.50 into the ratio 3:2

Answers

Answer 1

Answer: 3+2=5

2.50=5 units
divide by 5
0.5=1 unit

3:2
3 times 0.5=1.5
2 times 0.5=1

split is 1.5:1

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a giraffe can run 46.93 feet per second how many feet can it run in 1.8 seconds with out cross multiplying justify your awnser

Answers

46.93 x 1.8 = 84 .474 feet in 1.8 seconds
the multiplier is 1.8 as it is a 80% increase on the 1 second that we already have the information for

If the giraffe can run 46.93 in one second it can run 46.93*1.8=84.474 feet in 1.8 seconds.

HOPE THI HELPS!!!!!!!

Debbie ate 1/8 of a large brownie. Julian ate 1/2 of a small brownie, Julian says he ate more than Debbie because he said 1/2 is more than 1/8

Answers

julian is correct 1/2 is fifty percent so you are half at 100

I don't know how to do this question can you please help me. ? ? ?

Answers

So the base is 72 area squared. You multiply 72 by the height, which is 9, giving you 648 area cubed.
Hope this helped!

Natalie baked 12 cookies. Sheate 3/12 of the cookes, and her
sister ate 3/6 of the cookies.
Who ate more cookies?

Answers

Answer:

Her sister ate more cookies.

Step-by-step explanation:

If you convert 3/6 into a simplified fraction, it turns into half. Half of 12 is 6. Natalie ate 3 cookies. Therefore, her sister ate more.

Answer:

Her sister

Step-by-step explanation:

3/6=6/12 so her sister ate 6 cookies and she only ate 3

Calculate the area of the following figure correct to 2 decimal places if can show or explain work

Answers

The way we approach a question like this, is by looking at what portion of the circle we actually have to calculate the area of. We know that a circle is a shape that goes 360 degrees around a point. Therefore we know that, for example, a semicircle, or half a circle, would cover half the amount of degrees. This is important, because as well as covering half the number of degrees, it also covers half the area. For the figure in your picture, we are told that the portion missing from the circle is 90 degrees (shown by the right angle symbol in the center).
this means that 90 degrees worth of the circle is missing, so if we do 360÷90, we find that the answer equals $(3)/(4)$ . This means that we are dealing with $(3)/(4)$ of a circle. So, we simply find the area of the circle normally, and then multiply by $(3)/(4)$ :
The formula for area of a circle is $\pi r^(2)$ , so in this case, it can be said to be $\pi (10^(2) )$ , which is equal to 314.15
Now we simply take that area and multiply it by the fraction we established earlier:
314.15 x $(3)/(4)$ = 235.61
Therefore the area of the figure is 235.61 $cm^(2)$
I hope this helped and please remember to try and not only understand the answer, but the maths that worked it out too :))

Expand and simplify these(X+6) (x+9)
(X-5) (x+2)
(X-1)(x-7)
(4x+9)(3x+8)
(3x-8)(2x-1)
(X+9) ^2(squared)
(3x+2)^2

Answers

$(x+6)(x+9)=x^2+9x+6x+54=x^2+15x+54 \n\n(x-5)(x+2)=x^2+2x-5x-10=x^2-3x-10\n\n(x-1)(x-7)=x^2-7x-x+7=x^2-6x+7\n\n(4x+9)(3x+8)=12x^2+32x+27x+72=12x^2+59x+72\n\n(3x-8)(2x-1)=6x^2-3x-16x+8=6x^2-19x+8\n\n(x+9) ^2=x^2+2\cdot x\cdot9+9^2=x^2+18x+81 \n\n(3x+2)^2=(3x)^2+2\cdot3x\cdot2+2^2=9x^2+12x+4$

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