i need help wiht math

40

if it takes two workers 10 minutes to plant 3 trees,then it will take 4 workers 5 minutes to plant 3 trees.3÷24=8,then 5×8=40

If it takes 2 workers 10 minutes to plant 3 trees then it will take 4 workers 40 minutes to plant 24 trees.

Two or more expressions with an Equal sign is called as Equation.

The rate at which each worker plants trees.

If two workers can plant 3 trees in 10 minutes, then one worker can plant 3/2 trees in 10 minutes

One worker can plant 1.5 trees in 10 minutes, or 0.15 trees per minute.

Now, we can use this rate to find how long it will take 4 workers to plant 24 trees.

Since each worker plants at a rate of 0.15 trees per minute

Four workers will plant at a combined rate of 0.15 x 4 = 0.6 trees per minute.

To plant 24 trees at a rate of 0.6 trees per minute, we can use the formula:

time = (amount of work) / (rate of work)

Plugging in the values, we get:

time = 24 / 0.6 = 40

Therefore, it will take 4 workers 40 minutes to plant 24 trees.

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Answer:

Step-by-step explanation:

The team draws with a probability of 1 = (0.5 + 0.2) = 0.3

If the team does not win then it loses or draws.

Loosing = 0.2

Draw := 0.3

P(not win) = 0.2 + 0.3 = 0.5

======================

Not lose means wins or draws.

P(not lose) = 0.5 + 0.3 = 0.8

======================

Not Draw means wins or loses

P(not draw) = 0.5 + 0.2 = 0.7

Of course all of these could be done more directly.

P(not win)= (1 - win) = 1- 0.5 = 0.5

P(not lose) =  ( 1 - lose) = 1 - 0.2 = 0.8

P(not draw) = (1 - 0.3) = 0.7

Answer: 28!

Step-by-step explanation:

so all you need to do is add all the points numbers together, that is how many km you would have to walk! so you count each amount of km to know how far you are walking to their locations in km

Hope this helped! and hope i can get brainliest!

Answer:

The algebraic expression of the sum of y and 4 will be: [tex]y+4[/tex]

Step-by-step explanation:

As we know that An algebraic expression in mathematics is an expression which consists of:

As we have to determine the expression of the sum of y and 4.

Hence, the algebraic expression of the sum of y and 4 will be: [tex]y+4[/tex]

Answer:

y + 4

Step-by-step explanation:

Sum means it's an addition problem, so y + 4 is the answer.

hope it helps

Answer:

8

Step-by-step explanation:

Answer: 8

Step-by-step explanation:

Answer: AC=108

Step-by-step explanation:

6x=9x-27

9-6=3

27/3=9

x=9

6x9=54

9(9)=81

81-27=54

54(2)=108

AC=108

Answer: irrational

Step-by-step explanation:

Answer:

5.25×10−3

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

Answer:

Thus, train speed = 70 mph while wind speed is. y = 14 mph

Step-by-step explanation:

Let x = speed of the plane in mph.

Let y = speed of wind in mph.

We are told that The trip there was with the wind. It took 4 hours. The trip back was into the wind. The trip back took 6 hours.

Formula for distance is;

Distance = speed × time

Thus;

(x + y)4 = 336

(x + y) = 84 - - - - (1)

Also;

(x - y)6 = 336

Divide both sides by 6

(x - y) = 56 - - - (eq 2)

Add eq 1 and 2 to give;

2x = 84 + 56

2x = 140

x = 140/2

x = 70 mph

Plug in 70 mAh for x in eq 1.

(70 - y) = 56

y = 70 - 56

y = 14 mph

Thus, train speed = 70 mAh while wind speed is. y = 14 mph

Answer:

Choice D

Step-by-step explanation:

When you find the unit price it will be easier to eliminate the other choices and to find the unit price I found the easiest numbers to work with, so if we do $5 divided by 2 lbs it'll give us $2.5 and that's our unit price. Then for the graphs we are left with choices C and D. So all we have to do is see which one has the line passing through point (2,5) which stands for 2 oranges and $5.

Answer:

10 : 12 is equivalent to 5 : 6 and 20 : 24.

Step-by-step explanation:

You can divide and multiply the ratio by 2 to get an equivalent ratio.

The ratio which is equivalent to 10: 12 are 5: 6 and 20: 24 Therefore, option (C) will be correct.

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b will be the denominator.

As per the given ratio, 10:12.

Divide numerator and denominator by 2

(10/2):(12/2) = 5:6.

Multiply the numerator and denominator by 2

(10×2);(12×2) = 20:24

Hence "The ratio which is equivalent to 10: 12 are 5: 6 and 20: 24".

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Answer:

x=3

Step-by-step explanation:

Answer:

No solution

Step-by-step explanation:

you get 40≠20

Answer:

357

Step-by-step explanation:

First you would add 61 to 148 for Brian's sore then you would add Brian's score to Colin's score to get 357. Hope this helps! Have a great day!

Answer:

x=10

Step-by-step explanation:

2x-12 = 18

    +12  +12

2x=20

20/2 = 10

Answer:

24

Step-by-step explanation:

Original equation:

2x - 12 = ?

We know x = 18

So, just plug the value into the equation

2(18) - 12

Multiply 2 by 18

36

Subtract 12 from 36

The answer is 24

Hope this helped :)

Answer:

I think answer will be

(0, 1, 2)

Answer:

10

Step-by-step explanation:

x+y/y

9+10/10

9+1

10

Answer:10

Step-by-step explanation:

9+10/10=

9+1=

10

Answer: 83.52 calories

Step-by-step explanation:

first candy bar=116 calories

second candy bar= has 28% less calories

to find out the answer we will 28/100=0.28

116x0.28=32.48 calories(less)

116-32.48=83.52 calories for the second candy bar

Answer:

1 dollar

Step-by-step explanation:

Answer:

$1.66

Step-by-step explanation:

It would roughly be this but a few cents more the way i divided this was different. All you do 15/9 to get 1.66 with a non-terminating decimal.  

Answer:

C

Step-by-step explanation:

Beecause the X value is staying the same, while the Y value changes.

Answer:

C

Step-by-step explanation:

Answer:

8x^2+38x+45 so B

Step-by-step explanation:

i got it right on the test

The required equation of the function that represents the area of the porch is A(x) = 8x² + 38x + 45. Option D is correct.

Given that,
Dan is tiling his rectangular, concrete porch with square, porcelain tiles. The length of the porch is represented by the function l(x)=4x+9, where x is the side length, in feet, of each tile. The width of the porch is represented by the function w(x)=2x+5.

The surface area of any shape is the area of the shape that is faced or the surface area is the amount of area covering the exterior of a 3D shape.

Here,
Length of the porch = 4x + 9
Width of the porch = 2x + 5
area of the porch A(x) = (4x + 9) (2x + 5 )
                                     = 8x² + 20x + 18x + 45
                                     = 8x ² + 38x + 45

Thus, the required equation of the function that represents the area of the porch is A(x) = 8x² + 38x + 45. Option D is correct.

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Answer: 0.18 (18 cents) per ounce

Step-by-step explanation:

2.88/16 = 0.18

Answer:

I think 168 is the answer

Answer:

z = 1/5

Step-by-step explanation:

5 divided by 25 is 20 percent and in fractions its 1/5

Answer:

-2.4x + 7.12x = -14.16

4.72x = -14.16

x = -3

Step-by-step explanation:

hope this helps :)

Answer:

y=2x+6

Step-by-step explanation:

When x=0,y=6 so not CD

when y=0,x=-3 so not A