Electric saw A cuts planks at a uniform rate of 150 every 30 seconds, and Electric saw B cuts planks at a uniform rate of 130 every 13 second. Of the 2 saws run simultaneously, how many seconds will take for them to produce a total of 225 planks

Answers

Answer 1

Saw A = 150 planks/30 seconds = 5 planks per second

Saw B = 130 planks/ 13 seconds = 10 planks per seconds

5 + 10 = 15 planks per second total

225 planks / 15 planks per second = 15 seconds

Answer: 15 seconds


Related Questions

The set S = {x\-4 Plz help ASAP

Answers

Answer:

[ - 4, 8 ]

Step-by-step explanation:

parenthesis ( ) is used when end values are not equal to x

brackets [ ] are used when the end values are equal to x

For - 4 ≤ x ≤ 8

Then x can equal both - 4 and 8 , so

[ - 4, 8 ] ← is the appropriate interval notation

Please help me with homework

Answers

2-14:

A) 3x+5y=3(3)+5(2)

=9+10

=19

B) x²+y²=3²+2²

=9+4

=13

C) -5x+9=-5(3)+9

=-15+9

=-6

D) xy-1=(2×3)-1

=6-1

=5

E) 2x²-y=2(3)²-2

=18-2

=16

F) 2y-x+5+x²-3y=2(2)-3+5+3²-3(2)

=4-3+5+9-6

=9

2-15: area=y²+xy+xy

=(y²+2xy) un²

perimeter=y+y+y++y+x+y/2+y+x+y/2

=(6y+2x) un

is 2/3greater than 0.67

Answers

Answer:

0.67>2/3

Step-by-step explanation:

If you divide 2 by 3, you will end up with 0.6.

Now, you can compare the two numbers 0.6 and 0.67.

Write down the formula of calculating the average of the individual data

Answers

When calculating the average of individual data, you set of all observations of a given characteristic, usually in ascending order. The arithmetic mean for this series is calculated by summing the values of the observations and dividing the result by the number of observations.
Hope this helps, please give me brainliest
a1+an/2 is the formula for calculating the average

Marking brainliest

What else should I add

Answers

Step-by-step explanation:

........Student

........ Cousin

......... Child

Answer:

Step-by-step explanation:

daughter cousin (if you have any).mother (if you are one)family member (if it applies)best friend.

Pls help I am very confused

Answers

Answer: 22 weeks to gain $312.

Step-by-step explanation:

Let w be the number of weeks.

Equation: 48 + 12w  

48 + 12(22)

= 48 + 264

= $312

It will take 22 weeks for Marty to gain $312.

Karabo is training by running for the Comrades Marathon ; he starts his training by running 40km per week . Each week he increases the distance covered by 10km (1) Use the formula to calculate the distance he runs in the 12 week of training​

Answers

Answer:

hi

Step-by-step explanation:

hi

Which interval notation represents the set of all numbers greater than -2 and less
than or equal to 3?

Answers

Answer:

yes

Step-by-step explanation:

Answer:

(- 2, 3 ]

Step-by-step explanation:

parenthesis ( ) is used when the end value is not equal

brackets [ ] are used when the end value is equal

Here numbers are greater but not equal to - 2 and less than or equal to 3

(- 2, 3 ] ← is the appropriate interval notation

Are (2,9) and (-3,-6) both on the line y - 4x + 6? If not, find an equation for the line that does pass through both points.

Answers

Answer:

points doesn't lie in the given line.

Step-by-step explanation:

firmula for finding the equation of these points are

[tex] \frac{y - y1}{y2 - y1} = \frac{x - x1}{x2 - x1} [/tex]

x1=2 , x2=-3, y1= 9 ,y2=-6

subtitute all values in formula

[tex] \frac{y - 9}{ - 6 - 9} = \frac{x - 2}{ - 3 - 2} [/tex]

[tex]y - 3x - 3 = 0[/tex]

if we put (2,9) and (-3,-6) in new equation then they will satisfy equation.so this is the equation where points lie in the line

Please help meeeee!
I'm really in a rush rn!

Answers

Answer:

-3.392

Step-by-step explanation:

2.34

1.052

+_____

= 3.392

In your own words, what does supplementary mean?

Answers

Answer:

added or serving as a supplement.

Find the equivalent equation that results from, halving both sides first and then subtracting
1 from both sides. Show each step. You do not have to solve the equation at the end,

Answers

Answer:

6x - 1 = 9

Step-by-step explanation:

1. first you have to divide every term in the equation by 2

   12x/2 + 4/2 = 20/2

2. simplify

   6x + 2 = 10

3. next you have to subtract one from both sides

   6x + (2-1) = (10-2)

4. simplify

    6x + 1 = 9

Seven less than a number is 15

Answers

Answer:

8 is 7 less than 15

YALL I NEED YOU GUYS! Please HELP me I NEED YOU,!

Answers

Answer:

b

Step-by-step explanation:

Simplify 4(2x3 – 5x2 + 8x + 2) - 6x - 8x3

Answers

Answer:

- 20x² + 26x + 8

Step-by-step explanation:

Given

4(2x³ - 5x² + 8x + 2) - 6x - 8x³ ← distribute parenthesis by 4

= 8x³ - 20x² + 32x + 8 - 6x - 8x³ ← collect like terms

= - 20x² + 26x + 8

Solve for d. 2(d − 10) = 18 d =

Answers

Step-by-step explanation:

[tex]2(d - 10) = 18 \\ 2d - 20 = 18 \\ 2d = 38 \\ d = \frac{38}{2} \\ d = 19 \\ thank \: you[/tex]

I need help on this question, geometry basics.

Answers

Step 1 : F

Step 2 : C

Step 3 : B

Step 4 : E

Step 5 : D

Step 6 : A

is 16 a natural, whole, integer, rational or irrational number?

Answers

Answer:

6 is a natural, whole and integer

Step-by-step explanation:

16 is a natural, whole and integer

it is not rational or irrational because

rational numbers are written in p/q as well as irrational

natural numbers start from 1 till infinite

whole numbers start from 0 to infinite

integers include all the positive and negative numbers

Answer:

rational

Step-by-step explanation:

What is 3x+5 = 2x+11

Answers

Answer: x = 6

1. Subtract “2x” on both sides. This simplifies the equation to x+5=11

2. Subtract “5” on both sides. This simplifies to x=6, which is your answer.

FIND THE MISSING SIDE OF THE TRIANGLE

Answers

Answer:

[tex]use \: pythagorean \: theoram \\ {hypotenuse}^{2} = {height}^{2} + {base}^{2} \\ {x}^{2} = {12}^{2} + {9}^{2} \\ {x}^{2} = 144 + 81 \\ {x}^{2} = 225 \\ x = \sqrt{225} \\ x = 15 \\ thank \: you[/tex]

Answer:

x=15

Step-by-step explanation:

[tex]x=\sqrt{a^2+b^2}[/tex]

[tex]=\sqrt{12^2+9^2}[/tex]

[tex]=\sqrt{225}[/tex]

[tex]=15[/tex]

X completes one round of a running track in 8 minutes and Y completes it in 6
minutes. How long will it take for both to arrive at their starting point together, if they
start at the same time and maintain their speed?

Answers

Answer: It will be 24 mins

Step-by-step explanation:

Answer:

24 minutes

Step-by-step explanation:

Have a good day

-Bradi

A triangle has a perimeter of 23 feet. Find the value of X

Answers

Answer:

x = 4

Step-by-step explanation:

3x + x + (x + 3) = 23 feet

3x + x + x = 20 feet

5x = 20 feet

x = 20/5

x = 4

Write an equation of the line that passes through the point (-6, -9) with slope-5.
A. y + 9 = 5(20+6)
B.y +6 = 5(x +9)
c.y+9= -5(x + 6)
D.y +6 = -5(x +9)

Answers

Answer:

[tex]y+9=-5(x+6)[/tex]

Step-by-step explanation:

We are being asked to write the equation in point-slope form:

[tex]y-y_1=m(x-x_1)[/tex] where m = slope and the first point = [tex](x_1,y_1)[/tex]

In this case, the slope is -5 and the point is [tex](-6,-9)[/tex] so the equation will be:

[tex]y+9=-5(x+6)[/tex]

Want to learn more about point-slope form? Check the link out:

https://www.albert.io/blog/point-slope-form/#What_is_point_slope_form

What's the area of a room that 18ft by 10ft

Answers

Answer:

180square feet

Step-by-step explanation:

Square footage is calculated by multiplying width by length. So if a room is 18 foot wide by 10 foot long, 18 x 10 = 180 square feet.

Answer:

180 square feet

Step-by-step explanation:

if a room 18ft wide by 10ft long.18×10=180 square feet

a. If the average North Korean farmer produces 1,500 pounds of food per year, what is the opportunity cost, In pounds of food, of North
Korea's army?

______ pounds of food per year

b. If a person needs at least 500 pounds of food per year to survive, how many people could have been fed with the forgone food output?

_____ people

Answers

Answer:

1,920,000,000 pounds of food per year and 3,840,000 people.

Step-by-step explanation:

1,280,000 active military members could have been farmers that produced 1,500 pounds of food per year. (1,280,000 farmers x 1,500 pounds of food = 1,920,000,000).

1,920,000,000 divided by 500 pounds of food per person is 3,840,000.

Jackie has two new puppies. One weights 5 9/16 pounds, and the other weighs 6 1/4 pounds. Find the difference in their weights.

Answers

Answer:big brrrrrrd

Step-by-step explanation:

yes

Answer:

11/16 pounds

Step-by-step explanation:

The difference between their weights can be found by subtracting 6 1/4 pounds from 5 9/16 pounds to find the difference. To do this we must transfer it from 1/4 to sixteenths which is 4 sixteenths. Then we subtract.

 6 4/16

- 5 9/16

    11/16

brainliest please . . . uwu

Please help ASAP!!!!!!!!!!

Answers

b^2-4ac=7 is the answer

tìm x a)
4x^2-12x=-9

Answers

Hi

Just told you :  first know by heart remarkable identities !  

Then apply :  

4x²-12x = -9

4x²-12x +9 =0

(2x-3)² = 0

(2x-3) (2x-3)  = 0

Now you have a double solution :

2x-3 = 0

and 2x -3 = 0

I let you try !

Can someone please help me it's urgent!
Write a statement about each pair of lines in this construction. (3 statements)

Answers

I don’t know cause I’m a robot I don’t know g

Answer this if you can boom bam bop

Answers

Answer:

D. $60

Step-by-step explanation:

If the amount is equal and each is 20% = $12, then total is:

100% = 20%*5 = $12*5 = $60

Correct choice is D

Answer:

60.00

Step-by-step explanation:

20% of 60 = 12 which equals the amount of money Peter has.

So, at $60, he has 20% and $12.00

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