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konstantin123 [22]
3 years ago
14

4

Mathematics
1 answer:
const2013 [10]3 years ago
4 0

Answer:

the third

Step-by-step explanation:

your photo is not clear, and your explanations for your question is not clear also.

as we are tackling the substraction and the addition questions between matricxs.We could simply +/- every number correspondingly.

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como calcular la cantidad de horas por proyecto si un contratista tiene 5,000 horas-hombres y el costo es de $10 y $12 por proye
Tju [1.3M]

Answer:

Each project has 2.500 man-hours

Step-by-step explanation:

Available man hours: 5000

For two projects          Costs $

X: project A                     10

Y: project B                     12

Approach:

X + Y = 5000 => X = 5000 - Y

10 * X + 12 * Y = 55000

replacing:

10 * (5000 - Y) + 12 * Y = 55000

50000 - 10 * Y + 12 * Y = 55000

2 * Y = 55000 - 50000

Y = 5000/2

Y = 2500

For X:

X = 5000 - 2500

X = 2500

The number of hours available for each project are:

Projects Man            hours

X: project A              2500

Y: project B              2500

6 0
3 years ago
Complete the statement. Round to the nearest hundredth if necessary
Bond [772]

Answer:

45.9

Step-by-step explanation:

Remember that the hundredths place value is the second number after the decimal point and to round that number has to be greater than five in order to round up.

1m=3.28084

3.28084\times14=45.93176

Hundredths place value = 3

Round:

3

=45.9

Hope this helps.

8 0
2 years ago
There are 13 boxes of apples there are 10 apples in each box how many apples are there in all
Leokris [45]

Answer:

A trick I did when it comes to multiplying by 10, is just add a 0 at the end of the number your multiplying. Try for yourself!

6 0
2 years ago
Read 2 more answers
Jayla buys and sells vintage clothing. She bought two blouses for $25.00 each and later sold them for $38.00 each. She bought th
kompoz [17]
If you’re looking for profit is would be $59.00
7 0
3 years ago
The front and back covers of a text book are each 0.3 thick between the cover are 200 sheets of paper each 0.008 cm thick how hi
shepuryov [24]

Answer: 1,000

Step-by-step explanation:

The height of 10 stacks of books would be a 1,000 because if it's 0.3 thick between covers of 200 sheets then 10 books would be a 1,000.

5 0
3 years ago
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