One construction company can do certain job in ten days and a second construction company can do the same job in fifteen days. How many will it take to complete the job if the two construction companies work together? ​

Answer:

k=11.111111111111, D=2600/39, A=16.81, C=400, W=27.75, K=10

Step-by-step explanation:

Hope this helped!

If A = 52 and K=22 then D = 63.44 and if Given A = 361 and K = 5 then

C = 398.0025.

A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.

Given, A = 52 and k = 22.

From the diagram, D is (100 + 22)% = 122% of A.

Therefore,

D = (122/100)×52.

D = 63.44.

Given, A = 361 and k = 5.

Therefore,

C = (105/100)×361

C = 379.05 and again 105% of 379.05.

C = (105/100)×379.05.

C = 398.0025

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Answer:

Step-by-step explanation:

#1.

2x² + 24x + 10 = 0

2(x² + 12x + 5) = 0

2[ x² + 2(6)x + 6² - 6² + 5 ] = 0

2[(x + 6)² - 31] = 0

2( x + 6 - √31 )( x + 6 + √31 ) = 0

[tex]x_{1}[/tex] = - 6 + √31

[tex]x_{2}[/tex] = - 6 - √31

#2.

f(x) = 3x² - 36x - 12

f(x) = 3( x² - 12x - 4 )

f(x) = 3 [ x² - 2(6)x + 6² - 6² - 4 ]

f(x) = 3 [( x - 6 )² - 40 ]

f(x) = 3( x - 6 )² - 120

Answer:

ABD

Step-by-step explanation:

Mark brainliest today afternoon message was not going that account was deleted

this is my new account ha Aryan hu

From the kite ABCD, ∠ABD = 65° and ∠CBD = 46°

∠ABC≅∠ADC

∠EDC = 180 - 90 - 44 (sum of angle in a triangle)

∠EDC = 46°

∠EDC ≅∠EBC

∠ADE = 180 - 25 - 90  (sum of angle in a triangle)

∠ADE = 65°

∠ADE ≅ ∠ABD(Base angle of isosceles triangle)

Therefore,

∠ABD = 65°

∠EDC ≅ ∠CBD (Base angle of isosceles triangle)

Therefore,

∠CBD = 46°

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Answer:

C (-5,[tex]\frac{8}{3}[/tex])

Step-by-step explanation:

I uses demos graphing calculator

First, found the slope using point (0,6) and (3,8)

m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

m = [tex]\frac{8-6}{3-0}[/tex]

m = [tex]\frac{2}{3}[/tex]

m = slope

Now I will be able to form a linear equation:

y = mx + b (is our y-intercept, when x is 0) When x is 0, y is 6 (0,6)

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

I graphed that on demos, and that's how I got my final answer.

I would attach the link to the graph, but brainly deleted my answer before. So, try to write that in to demos (y = [tex]\frac{2}{3}[/tex]x + 6) if you want to see the graph.  

Hope that helps!

Answer:

96 cm

Step-by-step explanation:

for the triangles do 5×6×4

then divide it by 2 to get 60 then do 6×6 for the square to get 36. Add 36 and 60 together to get 96.

The equations that can be used are 10T + 5S = 190 and T + S = 30.

Given that the girls tennis team was interested in raising funds for an upcoming trip, and the team sold tumblers for $10 and sun hats for $5, and when the sales were over, the team had earned $190 and sold 30 total products, which included a mix of tumblers and hats, to determine which equations can be used to represent the situation, the following calculations must be made:

Therefore, the equations that can be used are 10T + 5S = 190 and T + S = 30.

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Answer:

t+s=30

10t+5s=190

Step-by-step explanation:

Answer:

75 units²

Step-by-step explanation:

Bigger rectangle: length * width

                           : 10 * 9

                           : 90 units²

smaller rectangle: length * width

                             : 3 * 5

                             : 15 units²

Shaded region = Bigger rectangle - smaller rectangle

                         =     90 units²      -     15 units²

                         =        75 units²

The expression 5(4) - 6 + 5(4) - 6 is equivalent to (k + k)(4) option fourth is correct.

It is defined as the combination of constants and variables with mathematical operators.

The question is incomplete.

The complete question is:

If k(x) = 5x – 6, which expression is equivalent to (k + k)(4)?

Plug k = 4 in the function:

k(4) = 5(4) - 6

Now,

= (k + k)(4)  or

= k(4) + k(4)

= 5(4) - 6 + 5(4) - 6

Thus, the expression 5(4) - 6 + 5(4) - 6 is equivalent to (k + k)(4) option fourth is correct.

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Answer:

no te entiendo amiga porque esta en inglés y yo entiendo dama español perdón yo lo se pero esta inglés

Answer:

-10p/3+32-3/2^p

Step-by-step explanation:

Answer:

x ≤ -3

Step-by-step explanation:

3 - 5x ≥ 18

-5x ≥ 18 - 3

-5x ≥ 15

x ≤ -3

Answer:

7

Step-by-step explanation:

32 muffins that carlos sells - 25 = 7 muffins

Answer:

7

Step-by-step explanation:

Fewer in this question = Subtract

32-25=7

Hence, Carlos sell 7 fewer muffins.

[RevyBreeze]

Answer:  Radeon R9 390 graphics card with a Core i5-2300 2.8GHz or FX-6350 processor

Step-by-step explanation:

Answer:

Equiangular and Equilateral

Step-by-step explanation:

I tried

Answer:

Step-by-step explanation:

We need to know the volume of the tank.  If the volume, X (in liters), is given in cm^3, convert the value to liters (1 liter = 1,000 cm^3).  Then take the tank volume and divide by 30 liters/min:

X liters/(30 liters/min) = X/30 minutes

Answer:

2 and -4 are value of x

Step-by-step explanation:

By solving this equation we get value of x

Answer:

Perimeter: 26.5m Area: 1,407.2136

Step-by-step explanation:

Perimeter: 3.9+ 7.4+ 4.6+ 10.6= 26.5m

Area: 3.9 × 7.4 × 4.6 × 10.6= 1,407.2136

Answer:

3.5k+5.3

Step-by-step explanation:

That's the answer when you subtract (7.5k-4)-4k-9.3)

Answer:

1.66 cans or 1.6 rounded.

Step-by-step explanation:

1 can = 240ft

2 cans = 480ft

480 divided by 240 = 1.66666666667.

Rounded number = 1.66 and or 1.6

2.5x + 2y = 336

x = 2y

2 equations, 2 unknowns, solvable

3.5x = 336

7x = 672

x = 672 / 7

x = 96

96 / 2 = y

y = 48

they sold 96 popcorn bags and 48 pretzels

Answer:

[tex]1.25[/tex]

Step-by-step explanation:

[tex]5\left(4^4\right)\cdot 8^4\cdot 16^{-6}[/tex]

apply exponent rule: [tex]a^{-b}=\frac{1}{a^b}[/tex]

[tex]4^4\cdot \:8^4\cdot \:5\cdot \frac{1}{16^6}[/tex]

[ breakdown ]

[tex]5*4 * 4 * 4 * 4 *4 * 8 * 8* 8*8*\frac{1}{16^6}[/tex]

[ simply multiply ]

[tex]5242880 * \frac{1}{16^6}[/tex]

[ [tex]16^6 = 16777216[/tex] ]

[tex]20971520* \frac{1}{16777216}[/tex]

[ cancel and simplify ]

[tex]\frac{5}{4}[/tex]

[ in decimals ]

[tex]1.25[/tex]

Step-by-step explanation:

just multiply.

you apply a fraction to a quantity by multiplying the fraction with the quantity.

a.

2/3 of 3/4 = 2/3 × 3/4 = 6/12 = 1/2

b.

2/5 of 3/4 = 2/5 × 3/4 = 6/20 = 3/10

c.

2/5 of 4/5 = 2/5 × 4/5 = 8/25

d.

4/5 of 3/4 = 4/5 × 3/4 = 12/20 = 3/5

Answer:

*

Step-by-step explanation:

Answers

8 x - 1/2 = -4 - middle line

-3/4 x 8 = - 6 - side line

-3/4 - - 1/2 = -1/4 - top line

-1/2 - 1/2 = -1 - vertical line

Answer:

16ft

Step-by-step explanation:

The answer is 16ft because the area of a trapezoid is a + b/2  x h.

5 + 8/2 = 13/2 = 6.5

104/6.5 = 16

The height is 16ft.

Answer:

51.2

Step-by-step explanation:

5x + 25 + x + 5 = 90

6x + 30 = 90

6x = 90 - 30

6x = 60

x = 10

Solution:

We can see that the 90° angle is divided into two angles. Thus, the sum of two angles must equal 90°.

Combine like terms:

Subtract 30 both sides:

Divide 6 both sides:

The value of x is 10.

Answer:

the drama club will have 108 slices left.

Step-by-step explanation:

19 x 6 = 114

114 - 6 = 108

108 Slices are left behind.