Y=6x-11 -2x-3y= -7 Find what x and y are?

Marcos had 15 coins in nickels and quarters. He had 3 more quarters than nickels. He wrote a system of equations to represent th

hodyreva [135]

Answer:

There are 6 coins in nickels and 9 coins in quarters.

Step-by-step explanation:

Now, to find the solution.

According to question:

The number of nickels = $x$ .

The number of quarters = $y.$

So, the total number of coins:

$x+y=15.$

He had 3 more quarters than nickels.

Thus,

$y=x+3$ .....(1)

Now, to get the solution:

$x+y=15$

Substituting the equation (1):

$x+(x+3)=15$

$x+x+3=15$

$2x+3=15$

Subtracting both sides by 3 we get:

$2x=12$

Dividing both sides by 2 we get:

$x=6.$

The number of nickels = 6.

Now, substituting the value of $x$ in equation (1):

$y=x+3\\\\y=6+3\\\\y=9.$

The number of quarters = 9.

Thus, there are 6 coins in nickels and 9 coins in quarters.

6 0

3 years ago

In a fruit cocktail, the ratio of orange juice to apple juice to coconut milk is 3:2:4, respectively. How much of each type is n

stellarik [79]

Answer: 15L of Orange

10L of Apple

20L of Coconut

Step-by-step explanation:please see attachment for explanation

7 0

3 years ago

Read 2 more answers

You are rolling a die and you roll a '4' seven out of the 20 times you roll the die.

kaheart [24]

Answer:

the correct answer is 7/20

5 0

3 years ago

determina la distancia recorrida por un automóvil si primero viajo 2 horas a 80 Km/h ,después 3 horas a 110 km/h y por ultimo 30

FinnZ [79.3K]

Answer: Total distance travelled is 510 km

Step-by-step explanation:

it is given that an automobile travels for

2 hours at 80km/h

3 hours at 110km/h

30 min at 40km/h

to find distance=x(let)

since

distance = speed * time

so

x= 80*2 +110*3 +40*(1/2) [since 1 hour =60 min so 30 min =1/2 hour]

x=160+330+20

x=510

hence total distance travelled is 510 km

Learn more about kinematics here

brainly.com/question/28493318

#SPJ9

4 0

1 year ago

Please help , I'm very confused on this topic and its 40 points just help and they are yours

Paha777 [63]

Answer:

RHS

Step-by-step explanation:

It is given that XY is the perpendicular bisector of WZ. This means that it forms 90-degree angles at Y. (angle XYZ and angle XYW are 90 degrees). (R)

Since there is a right angle at Y, XZ and XW are the hypotenuses. (H)

There is a common line between triangle XYZ and XYW and that is XY. (S)

Therefore you can prove ΔXYZ ≅ΔXYW because of RHS

4 0

3 years ago