It takes Jo 90 seconds to cut a a certain type of wood into 10 pieces. How long would it take Jo to cut the same wood type into 20 pieces?

Answers

Answer 1

Answer: so 90 seconds=10 pieces
10 pieces=9 cuts because just subtract 1 from number of pieces
2 pieces=1 cut
10 pieces=9 cust

90 seconds=9 cuts
10 seconds=1 cut

20-1=19
20 pieces=19 cuts
10 seconds per cut
10 times 19=190 seconds

it would take 190 seconds to cut into 20 pieces

Answer 2

Answer: In the space of 90 seconds Jo cuts a certain type of wood into 10 pieces.

Technically, this means that he had to strike that piece of wood 9 times.

So we can say that he strikes the piece of wood once every 10 seconds.

-----------------------------------------

If he continues striking the wood at this pace, it will take him 190 seconds to make 20 separate pieces of wood, as he'd have to make 19 cuts.

Here is the sequence of strikes:

10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190

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The answer is 190 seconds.

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What is the slope of 2/3x + 4

Which is the best estimate of
11 1/5 and 2 3/4

Answers

I think your question lacks a little bit of information. After a little research, I am able to find that you probably wanted to say '11 1/5 divided by 2 3/4'.

Therefore, I am solving the question assuming that you want to say:

''What is the best estimate of 11 1/5 divided by 2 3/4''.

Answer:

The best estimate of 11 1/5 divided by 2 3/4 will be: 4

Step-by-step explanation:

Given the information

11 1/5 divided by 2 3/4

solving the expression

$11(1)/(5)/ 2(3)/(4)$

$\mathrm{Convert\:mixed\:numbers\:to\:improper\:fraction:}\:a(b)/(c)=(a\cdot \:c+b)/(c)$

$11(1)/(5)=(11\cdot 5+1)/(5)=(56)/(5)$

$2(3)/(4)=(2\cdot 4+3)/(4)=(11)/(4)$

so the expression becomes

$11(1)/(5)/ 2(3)/(4)\:=(56)/(5)/ \:(11)/(4)$

$=(56)/(5)* (4)/(11)$

$=(56* \:4)/(5* \:11)$

$=(224)/(5* \:11)$

$=(224)/(55)$

$=4.07$

$= 4$ (Rounded to the nearest 1 orthe Ones Place)

Therefore, the best estimate of 11 1/5 divided by 2 3/4 will be: 4

Change 12.39% to decimal

Answers

.1239
A decimal represents a value out of a whole, the "." representing everything under the amount of a whole (1). A percentage is essentially the same thing, except the "%" sign basically replaces the decimal. To convert a percentage to a decimal, move the decimal (and if there isn't one, add one to the right of the last number). Then, move that decimal two places to the right. For every empty space you move, add a zero there.

What's the slope of y=x+5

Answers

Step-by-step explanation:

Hey there!

Given;

The equation is; y = X+5.

Comparing the equation with y = mx+c. Where "m" represents the slope, "c" is y-intercept and y is a variable. We get;

Slope (m)= 1

Hope ithelps...

Answer:

slope = $(1)/(1)$ , or 1

Step-by-step explanation:

Because there's nothing before the x, it automatically becomes a 1.

If it's a whole number, you know that the denominator is a 1, so when you plot the graph with the slope of 1, you always go up 1 and over to the right one.

Divide and express the result in standard form. 8/7-i

Answers

$i=√(-1)\to i^2=-1\ (i-the\ imaginary\ unit)\n----------------------\n\n(8)/(7-i)\n\nuse\ (a-b)(a+b)=a^2-b^2\n\n(8)/(7-i)\cdot(7+i)/(7+i)=(56+8i)/(7^2-i^2)=(56+8i)/(49-(-1))=(56+8i)/(49+1)=(56+8i)/(50)=(56)/(50)+(8)/(50)i\n\n=\boxed{(28)/(25)+(4)/(25)i}$

assuming the problem is 8/(7-i) you would multiply the fraction by (7+i)/(7+i)
This would then simplify to 8(7+i)/50 which can be simplified down to 4(7+i)/25

Find the area of segment CED given the following information:radius = 6in, area of ΔCAD = 17.18in2, and m∠CAD = 72°
Round your answer to the nearest hundredths if necessary.

Answers

Area of sector CAD = 72 / 360 x pi x 6^2 = 7.2pi = 22.6195 in^2

Therefore, area of segment CED = 22.6195 - 17.18 = 5.44 in^2

Answer: 5.43 square inches

Step-by-step explanation:

Here, the area of triangle ACD = 17.18 square inches,

And, the radius of the triangle having center A = 6 inches

The central angle of the arc CED = 72°

Hence, the area of the sector CAD = $(72)/(360)\pi (6)^2$

= $(2592\pi)/(360)$

= $(8138.88)/(360)$

= $22.608$ square inches

Since, the area of CED = The area of sector CAD - Area of triangle ACD

= 22.608 - 17.18

= 5.428 ≈ 5.43 square inches.

What is the domain of the relation {(2, 8), (0, 8), (–1, 5), (–1, 3), (–2, 3)}?

Answers

The domain is simply all of the x values.

We have a 2, 0, -1, -1, and -2.

Get rid of duplicates, so 2, 0, -1, and -2.

We're going to want to order those, so -2, -1, 0, and 2.

And put some fancy brackets on that. {-2, -1, 0, 2}

Domain Range
    -1 3
   0 5
   2 8
   3

The domain of the relation {(2, 8), (0, 8), (-1, 5), (-1, 3), (-2, 3)} is {-1, 0, 2, 3}.

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