2 years ago

5x+7y=31 , 3x-5y=21??

Mathematics

1 answer:

nikklg [1K]2 years ago

5 0

Answer:

yes

Step-by-step explanation:

You might be interested in

one high speed internet provider has a $50 setup fee and costs $30 per month. another has no setup fee and costs $40 per month.

vlabodo [156]

Answer:

y=30x+50 and y=40

Step-by-step explanation:

7 0

2 years ago

Which amount is greater:50% of 40 or 40% of 50?

Rina8888 [55]

50% of 40 is 20, and 40% of 50 is 20, neither one is greater, they're equal

3 0

2 years ago

Read 2 more answers

A taxi driver had 43 fares to and from the airport last Monday. The price for a ride to the airport is $12, and the price for a

leva [86]

Answer:

(25,18) is the required solution.

Step-by-step explanation:

We are given the following in the question:

Let x be the number of trips to the airport and y represent the number of trips from the airport.

Total number of fares to and from the airport = 43

Thus, we can write the equation:

$x+y = 43$

Price for a ride to the airport = $12

Price for a ride from the airport = $10

Total amount collected by the driver = $480

Thus, we can write the equation:

$12x+10y=480$

Solving the two equations, we get,

$12x+12y-(12x+10y)=516-480\\\Rightarrow 2y =36\\\Rightarrow y = 18\\\Rightarrow x = 43-18=25$

Thus, the driver made 25 trips to the airport and 18 trips from the airport.

The solution can be represented as (25,18)

7 0

2 years ago

Ten times the sum of half a number and 6 is 8.

asambeis [7]

The answer IS 8 itself .

4 0

2 years ago

For each triangle, find the missing side length to the nearest tenth. :

Lana71 [14]

We can use trigonometry. The cosine of 15 will be the side adjacent to the 15-degree side (the one we are looking for) divided by 20, the hypotenuse. As cos(15) is about .966, we get 19.32 as the side we are looking for.

3 0

2 years ago

5x+7y=31 , 3x-5y=21??​

5x+7y=31 , 3x-5y=21??