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Thepotemich [5.8K]
4 years ago
7

System of equations 5x+y=7 20x+2=y

Mathematics
1 answer:
KIM [24]4 years ago
7 0
Dependent

The general form for a pair of linear equations in two variables x and y is
and

----- (1)
----- (2)
Comparing equations 1 and 2 with the general form of equation to write their co-efficient,

Compare the ratio,

If , then the pair of linear equations has exactly one solution.
So, it said to be consistent.
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Please Help please !!! two planes leave Atlanta at 3pm est. one flies east and travels at a speed of 75 kilometers per hour slow
ASHA 777 [7]
Answer:645 kilometers per hour
Solution.
Let v be the speed of the plane flying east!
Then, the speed of the plane flying west is v+75.
Since the planes are 5460 kilometers apart by 7 pm est,
(7-3)*(v+(v+75))=5460
2v+75=1365,
2v=1290,
v=645
answer: 645
7 0
4 years ago
On a​ map, 1 inch equals 5 miles. Two cities are 10 inches apart on the map. What is the actual distance between the​ cities?
Sedbober [7]

Answer:

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7 0
3 years ago
A person who weighs 60 Kg on Earth where would 54 1/2 kilograms on Venus if a child weighs 25 3/4 Kg on Earth what would this ch
Flura [38]

Answer:

Weight On Venus: 22.60 kg

Step-by-step explanation:

Being that it takes the weight of an object on earth and converts it to the weight on Venus, <em><u>the formula</u></em> is Weight on Venus= (Weight on Earth/9.81m/s2) * 8.87m/s2. To find the weight on Venus, we divide the weight on earth by the earth's force of gravity, which is 9.81m/s2. This calculates the mass of the object. Once we have the object's mass, we can find the weight by multiplying it by the gravitational force, which it is subject to. Being that Venus has a gravitational force of 8.87m/s2, we multiply the object's mass by this quanitity to calculate an object's weight on Venus.

So an object or person on Venus would weigh 90.42% its weight on earth. Therefore, a person would be lighter on Venus than on earth. Conversely, a person is 9.58% heavier on earth than on Venus.

Venus is only 95% the size of Earth, and 81% of its mass. With the smaller size and mass, the force of gravity pulling you on the surface is lower. To get your weight on Venus, just multiply your current weight by 0.9. That's why 100 pounds becomes 90 pounds.

6 0
3 years ago
Read 2 more answers
The circumference of a circle is 81.64 km what is the circles radius? use 3.14 for pi
natima [27]

Answer:

12.99km

Step-by-step explanation:

Using the formula

C=2(pi)(r)

7 0
3 years ago
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How high will be at the end of 3 seconds?
Elenna [48]

Answer:

where's the rest of the question?

Step-by-step explanation:

7 0
3 years ago
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