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den301095 [7]
3 years ago
12

Jessica can build a bookshelf in 4 hours. Sydney can build a bookshelf in 6 hr. How long will it take them if they build the boo

kshelf together?
Mathematics
2 answers:
Dominik [7]3 years ago
4 0

Answer:

2 hours

Step-by-step explanation:

i think

Furkat [3]3 years ago
4 0

Answer:

About 2.4 Hours

Step-by-step explanation:

1/4+1/6=1/h

12h(1/4+1/6)=12h(1/h)

3h+2h=12

5h=12

12/5=2.4

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IDK WHAT TO DO SOMEONE PLEASE EXPLAIN OR HELP
Zarrin [17]
Alright so, let’s break this down.

To find the first coordinate you need to solve the first equation

To do that you can do
6+9=15
So that mean 3x has to be equal to 15
You divide 15 by 3

The answer to that is the solution to the first equation, or the first coordinate.

For the second one, you know x has to be negative because the solution is negative

2x is going to have to equal -20
-20/2 gets you the solution

Remember that it will be negative
You now have both of the coordinates

You take coordinate A and technically add coordinate B to it
You do that because B is negative and A is positive
Then you have the answer to c
6 0
2 years ago
Kenny is on the local swim team for the summer and has swim practice
AnnyKZ [126]

Answer:

She swims for 3 hours each morning.

Step-by-step explanation:

To determine the number of hours that Kenny swims in the morning, it is necessary to perform the following equation, taking into account that he swims 5 days a week for a total of 30 hours a week, and that in the afternoon he swims for 3 hours:

X + 3 x 5 = 30

X + 3 = 30/5

X = 6 - 3

X = 3

Therefore, Kenny swims for 3 hours in the morning.

3 0
3 years ago
Find the surface area of this figure
jok3333 [9.3K]

It's a rectangular parallelepiped, also known as a box.  It has three pairs of congrurent rectangular faces, so adding them all up,

Area = 2 × (8×6 + 5×6 + 8×5) = 236 sq ft

Answer: 236 sq ft

5 0
3 years ago
Read 2 more answers
One side of triangle is 5x-2 another side is 6x+7 and t is the length of third side then what is true about length of t
yuradex [85]

Answer:

t =  \sqrt{ {(5x - 2) {}^{2}  + (6x + 7)}^{2} }

3 0
3 years ago
The can of wood stain is twice as wide but half as tall as the can of paint. What is true about the areas of their labels?
MAXImum [283]
In this case the areas would be exactly the same. To prove this, think of a can of stain as 4 inches wide by 6 inches tall/long. If the can of paint is 8 inches wide and 3 inches tall/ long, both areas would be 24 inches squared. By cutting one dimension in half and doubling the other dimension, you do not change the overall area.
8 0
3 years ago
Read 2 more answers
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