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2 years ago

Which ordered pairs are solutions to the equation 5x+7y=6

Mathematics

2 answers:

kompoz [17]2 years ago

8 0

5x+7y=6
5x+7y=6
12x+y=0
Hope it helps

svetlana [45]2 years ago

4 0

Answer:

cdzcz

Step-by-step explanation:

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2 years ago

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ankoles [38]

Answer:

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Step-by-step explanation:

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3 years ago

Each day, the human heart pumps about 7500 liters of blood. As a simple approximation, assume that the work done by the heart is

erik [133]

Answer with Step-by-step explanation:

We are given

Volume of blood=V=7500 L= $7500\times 0.001=7.5 m^3$

1 liter= $0.001 m^3$

Height of person=h=1.5 m

Density of blood, $\rho=1050 kg/m^3$

We have to find the work done and power of person's heart.

We know that

Work done, $W=mgh=\rho Vgh$

Where $g=9.8 m/s^2$

Using the formula

$W=1050\times 7.5\times 9.8\times 1.5=1.16\times 10^5 J$

Time,t=1 day= $24\times 60\times 60=86400 s$

Power, P= $\frac{W}{t}$

Using the formula

$P=\frac{1.16\times 10^5}{86400}=1.34 Watt$

7 0

3 years ago

Help DUE IN 30 MINUTES

Marrrta [24]

Here is the working
Hope it helps :)

6 0

2 years ago

Hans is using frequent flier miles to fly to a location 450 miles away, but the airline he is using still charges $15.89 for fee

Llana [10]

Given :

Hans is using frequent flier miles to fly to a location 450 miles away, but the airline he is using still charges $15.89 for fees and taxes and $0.17 to redeem each mile.

In the equation below, x represents the distance Hans is flying, and y represents the cost of the trip. y = $0.17x + $15.89 .....1)

To Find :

How much did Hans pay for his trip.

Solution :

x = 450 miles.

Putting value of x in equation 1 we get :

y = $(0.17×450 + 15.89)

y = $(76.5+15.89)

y = $92.39

Therefore, Hans will pay $92.39 for his trip.

Hence, this is the required solution.

8 0

2 years ago