The question is basically all in the picture.

Answer:

Part A is no because after subtracting it is 6/10 and 6/10 is not equal to 1/2

Step-by-step explanation:

First you make the fraction's denominator equal

2/5 = 4/10

Camen's water bottle is 1 8/10

Jorge's water bottle is 2 4/10

1/2 = 5/10

Make the fractions into a improper fraction

Camen's is 18/10

Jorge's is 24/10

subtract it

24 - 18 = 6

So Part A is no because after subtracting it is 6/10 and 6/10 is not equal to 1/2

Answer:

5 workers

Step-by-step explanation:

Find how many hours 1 worker can dig 240 / 20 = 12

60 hours / 12 hours = 5 workers.

It takes 5 workers to dig for 60 hours when 20 workers dig for 240 hours.

Answer:5 workers

240/20=12

Step-by-step explanation:

Answer:

16

Step-by-step explanation::

wrote on NEML, got it right,

Distance traveled by an car is the ratio of the mileage gives by the car to the total fuel the tank holds. The millage of 6 kilometre per liter in 3 liter the cars can travel 18 kilometre.

Given information

All three cars can travel the same distance on a tank of gas.

The second car gets 6 kilometres per liter more than the first, but its tank holds 3 fewer liters than the first.

The third car gets 6 kilometres per liter less than the first, but its tank holds 6 more liters than the first.

Suppose the first car runs m. kilometre per liter. Then the second car will run (m+6) kilometre per liter and third car runs (m-3) kilometre per liter.

Suppose the first car has l liter in the tank. Then the second car has (l-3) liter and third car has (l+6) liters in her tank.

Distance traveled by an car is the ratio of the mileage gives by the car to the total fuel the tank holds.

As the distance traveled by the first car is same as the second one. Hence,

[tex]\begin{aligned}\\\dfrac{m}{l} &=\dfrac{m+6}{l-3} \\ml-3m&=ml+6l\\m&=-2l\\\end[/tex]

Let the above equation is equation 1.

As the distance traveled by the second car is same as the third one. Hence,

[tex]\begin{aligned}\\\dfrac{m-3}{l+6} &=\dfrac{m+6}{l-3} \\ml-3m+9-3l&=ml+6l+6m+36\\l+m&=-3\\\end[/tex]

Put the value of m in the above equation from equation 1,

[tex]l-2l=-3\\l=3[/tex]

[tex]m=2\times3=6[/tex]

Thus the value of the m is 6.

With the millage of 6 kilometre per liter in 3 liter the cars can travel 18 kilometre.

Learn more about the distance here;

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Answer:

d

Step-by-step explanation:

^u^

The amount of units that must be sold to a number yields a maximum profit is 600. Hence 600 units will be the correct option.

To find the maxima of any function it needs to differentiate with respect to the dependent variable and equate with zero to get stationary points.

After achieving the stationary points it needs to put on the double derivative of that function to check whether it's maxima or minima.

If the double derivative got negative then it will be maxima.

Given that function

f(x) = -0.001(x-600)² + 90

By differentiation

[tex]$f'(x)$[/tex] = -0.002(x - 600) + 90

Now equate with zero

-0.002(x - 600) + 90 = 0

x - 600 = 0

x = 600

Now checking the x at double derivative

[tex]$f''(x)$[/tex] at x = 600 it is coming out to -0.002 which is negative Hence, the 600 units will be the correct answer.

For more about maxima

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Answer:

200 questions

Step-by-step explanation:

Given data

Let the total questions be x

so that

21% of x= 42 questions

let us solve for x

21/100*x= 42

0.21*x= 42

0.21x= 42

Divide both sides by 0.21

x= 42/0.21

x= 200 questions

Hence the questions are 200 questions

9514 1404 393

Answer:

  11, 5

Step-by-step explanation:

Zeros are the values of x that make the product zero. The product will be zero if and only if one or more of the factors is zero.

  x -11 = 0   ⇒   x = 11

  x -5 = 0   ⇒   x = 5

The values x=11 and x=5 are zeros of the quadratic.

Answer: See explanation

Step-by-step explanation:

1. Complementary (adds up to 90°)

2. Neither

3. Supplementary (ads up to 180°)

4. Adds up to 90° since its complementary

22 + 4x = 90

Subtract 22 from both sides

4x = 68

Divide both sides by 4

x = 17

5. Adds up to 90° since its complementary

65 + x + 2 = 90

x + 67 = 90

Subtract both sides 67

x = 23

6. Adds up to 90° since its complementary

43 + x - 7 = 90

x + 36 = 90

Subtract both sides by 36

x = 54

7. Adds up to 180° since its supplementary

29 + x - 5 = 180

x + 24 = 180

Subtract both sides by 24

x = 156

8. Adds up to 180° since its supplementary

110 + 7x = 180

Subtract both sides by 110

7x = 70

Divide both sides by 7

x = 10

9. Adds up to 180° since its supplementary

72 + x + 4 = 180

x + 76 = 180

Subtract both sides by 76

x = 104

10. Adds up to 90° since its complementary

49 + x + 3 = 90

x + 52 = 90

Subtract both sides by 52

x = 38

11. Adds up to 180° since its supplementary

92 + x + 78 = 180

x + 170 = 180

Subtract both sides by 170

x = 10

12. Adds up to 180° since its supplementary

19 + x - 50 = 180

x - 31 = 180

Add 31 to both sides

x = 211

13. Supplementary angles add up to 180°

∠C + ∠D = 180

∠C + 45 = 180

Subtract both sides by 45

∠C = 135°

Hope I helped!

Answer:

2.4 inches

Step-by-step explanation:

Actual Dimension of bedroom = 10' * 8'

In the model ; longer side = 3 inches

Length of shorter side in the model ;

Longer side of actual bedroom = 10'

Scale factor * length = model length

Scale factor * 10 = 3

Scale factor = 3/10

Hence, length of shorter side :

Scale factor * actual length of shorter side

3/10 * 8

24 / 10

= 2.4 inches

Answer:

333 ft squared

Step-by-step explanation:

18 x 18.5 = 333

Answer:

1

Step-by-step explanation:

u cant really multiply anything so it 1

Answer:

b + r = 10 - - (1)

2r + 3b = 23 - - (2)

Step-by-step explanation:

Number of Blue pens in box A = b

Number of red pens in box A = r

BOX A :

Contains 10 pens that are either red or blue

b + r = 10

BOX B:

Contains 23 pens that are either red or blue ;

Red pens in box B = 2 tines the number of red pens in box A

Blue pens in box B = 3 times the number of blue pens in box A

2r + 3b = 23

Answer:

10800

Step-by-step explanation:

so what i was thinking is 360 x 30 so I added that up and.. then I got my answer   (so so sorry if its wrong)

Answer:

x = 158

Step-by-step explanation:

Given

885 = 5(x + 19) ← divide both sides by 5

177 = x + 19 ( subtract 19 from both sides )

158 = x

Answer: x=158

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

720

Step-by-step explanation:

in an all year is 8760

Answer:

0.20 dollar per oz and Joshua brought 16 oz of strawberry

Step-by-step explanation:

1 lbs = 16 oz

3.20÷ 16

= 20 cent

20 cent per one ounce of strawberry

1 cent = 0.01 dollar

20 cent = 20 × 0.01

20 cents = 0.2 dollar

Answer:

Step-by-step explanation:

The midpoint of any line segment is the average of the coordinates of the endpoints.

mp=((x2+x1)/2, (y2+y1)/2), in this case we have points (9,7) and (5,3) so

mp=((9+5)/2, (7+3)/2)

mp=(7,5) (x=7 and y=5)

Answer:

Inequality representation :

18 + 25t ≤ 143 ;

t = 5

Step-by-step explanation:

Given that:

Initial dive, I = 18 feets

Descent rate, r = 25 feets / minute

Maximum depth reached = 143 feets

Time = t

Inequality representation :

18 + 25t ≤ 143

To solve for t

25t ≤ 143 - 18

25t ≤ 125

Divide both sides by 25

25t / 25 ≤ 125 / 25

t ≤ 5

Answer:

it's 16

Step-by-step explanation:

Step-by-step explanation:

divide by 2 then reverse

Answer:

idc

Step-by-step explanation:

Answer:

2x+9

Step-by-step explanation:

I hope this helps :)

Answer:

3x^2+5x-2=0

Step-by-step explanation:

3x*x -x+6x-2

=3x^2+5x-2

Hope it helps :)

Answer:

x-4

Step-by-step explanation:

A negative base raised to an even power equals a positive.

So you're left with sqrt x-4 ^2

Then reduce the index of the radical and the exponent with 2

x-4

Hope this helps

The correct expression will be ( x- 4 ). So option B is right.

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

The expression will be solved as:-

E = ( - √(x-4))²

The product of two minuses is positive and the product of the same square root numbers will be the number so the equation will become.

E = -√(x-4) x -√(x-4)

E = x - 4

Therefore the correct expression will be ( x- 4 ). So option B is right.

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Answer:

boink oink  

roses and red,

i am a stoner,

i peed on my face,

becuase i have  

a bo ner

Step-by-step explanation: