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Tresset [83]
3 years ago
8

Bob can do a job in 5 hours while Bill can do the same job in 8. How many hours would it take them, working together, to do this

job?
BTW no one has the right answer plz help me! Just give me an answer and ill literately give you brainliest i'm in a really bad hurry right now PLZ HELP ME!
Mathematics
2 answers:
ivann1987 [24]3 years ago
6 0

Answer:

It's 40/13

Step-by-step explanation:

kiruha [24]3 years ago
5 0

Answer:

3 1/3 hr

Step-by-step explanation:

Bob's rate:: 1/5 job/hr

Bill's rate:: 1/8 job/hr

together rate:: 1/x job/hr

Equation:

rate + rate = together rate

1/5 + 1/8 = 1/x

8x + 5x = 40

13x = 40

x = 40/13 = 3 1/3 hr (time to do the job together)

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A football stadium sells regular and box seating. There are twelve times as many
Vera_Pavlovna [14]

Answer:

There are 801 box seats and 9612 regular seats.

explanation:

Let the number of box seats be x,

Then the regular seats is 12x

The sum of seats equals to 10,413

<u>Solve:</u>

12x + x ➙ 10,413

13x ➙ 10413

x ➙ 801

There are 801 box seats.

<u>Find for regular seats:</u>

➙ 12(x)

➙ 12(801)

➙ 9612

There are 9612 regular seats.

6 0
2 years ago
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ONE HUNDRED POINTS
Over [174]

Answer:

See Below.

Step-by-step explanation:

We are given that ∠A = ∠D, and we want to prove that ΔACB ~ ΔDCE.

Statements:                                    Reasons:

1) \text{ $\angle A=\angle D$}                                    \text{Given}

2) \text{ }\angle BCA=\angle ECD                        \text{Vertical Angles Are Congruent}

3) \text{ } \Delta ACB \sim \Delta DCE                        \text{AA (Angle-Angle) Similarity}

5 0
3 years ago
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The letter tiles shown below are in a bag. Without looking i am going to draw one tile.
TiliK225 [7]
D. 0.75 is the correct answer 

explanation- 2 out of the 8 tiles are not blue A. so 6 out of 8 tiles would round equal 75% chance of not getting a blue A tile 

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8 0
3 years ago
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200 + 500 - 30 = <br>solve​
nevsk [136]

Answer:670

Step-by-step explanation:

200 + 500 - 30 =

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670

5 0
3 years ago
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What is the area of the shaded region plzz help
Aneli [31]

Answer:

78.10 cm^2

Step-by-step explanation:

The area of the shaded region is the area of the rectangle subtracted from the area of the circle.

area of circle = (pi)r^2

area of rectangle = LW

shaded area = area of circle - area of rectangle

shaded area = (pi)r^2 - LW

shaded area = (pi)r^2 - LW

shaded area = (3.14159)(6 cm)^2 - (7 cm)(5 cm)

shaded area = (3.14159)(36 cm^) - 35 cm^2

shaded area = 113.097 cm^2  35 cm^2

shaded area = 78.097 cm^2

Answer: 78.10 cm^2

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3 years ago
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