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timama [110]
2 years ago
12

Please help me its math 10 points

Mathematics
2 answers:
prisoha [69]2 years ago
7 0

Answer:

it should be 319

Step-by-step explanation:

Rzqust [24]2 years ago
6 0

Answer:

639 is the answers for the question

Step-by-step explanation:

please mark me as brainlest

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Can somebody please help me with this? I’ll give you a Brainly:)
wolverine [178]

Answer:

I think 90 degrees hope it helps

3 0
3 years ago
An automobile firm wants to purchase either machine A or machine B. The intial cost of machines A and B are $40,000 and $50,000,
Fynjy0 [20]

Answer:

C. $118,000 and $110,000, respectively.

Step-by-step explanation:

Please consider the complete question.

An automobile firm wants to purchase either machine A or machine B. The intial cost of machines A and B are $40,000 and $50,000, respectively. The power consumption per year of machines A and B are 120 MWh and 100 MWh, respectively. The power cost is $40/MWh. The estimated operating and maintenance cost over 10 years is $30,000 for machine A and $20,000 for machine B.

First of all, we will find the amount spent on power consumption for 10 years by each machine as:

\text{Machine A}=10\cdot 120(\$40)\\\text{Machine A}=\$48,000

\text{Machine B}=10\cdot \$100(\$40)\\\text{Machine A}=\$40,000

Now, we will find overall cost of machines A and B by adding initial cost, power consumption for 10 years and maintenance cost as:

\text{Overall cost of machine A}=\$40,000+\$48,000+\$30,000

\text{Overall cost of machine A}=\$118,000

\text{Overall cost of machine B}=\$50,000+\$40,000+\$20,000

\text{Overall cost of machine B}=\$110,000

Therefore, the overall cost of machines A and B are $118,000 and $110,000, respectively and option C is the correct choice.

6 0
3 years ago
In April, the water level in a mountain reservoir increased 0.6 m as the snow began to melt. In May, the water level increased a
Svetach [21]

Step-by-step explanation:

x+0.6+0.3-0.2=14.2

x+0.7=14.2

x=14.2-0.7

x=13.5

8 0
3 years ago
A jog runs at a speed of 4m/s for 10 minutes. Work out the distance travelled.
krok68 [10]

Answer:

2,400 meters

Step-by-step explanation:

4 × 60 sec = 240 meters a minutes

240 meters × 10 minutes = 2,400 meters in 10 minutes

7 0
4 years ago
Divide. (3 3/4 )÷(−2 1/2 ) Enter your answer as a mixed number, in simplified form, in the box.
Agata [3.3K]

Answer:

-11/14

Step-by-step explanation:  first you divide 33/4 and (-21/2), then reduce the numbers to -33/4 times 2/21 after you reduce both fractions multiply -11/2 times 1/7 and you get -11/14 your alternative form would br -0.785714


8 0
3 years ago
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