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2 years ago

PLEASE HELP ASAP. SOLVE FOR X AND Y. SHOW ALL WORK.

Mathematics

1 answer:

ss7ja [257]2 years ago

6 0

The solution to the system of equations is (-3.88, 0.66) and (3.04, 1.09)

<h3>How to determine the solution to the system of equations?</h3>

The system of equations is given as:

x^2y + yx^2 = 20

1/x + 1/y = 5/4

Multiply through the equation 1/x + 1/y = 5/4 by 4xy

So, we have:

4x + 4y = 5xy

So, we have the following system of equations

4x + 4y = 5xy

x^2y + yx^2 = 20

Next, we plot the graph of the system of equations

4x + 4y = 5xy

x^2y + yx^2 = 20

See attachment for the graph of the system

From the attached system, we have the point of intersection to be

(x, y) = (-3.88, 0.66) and (3.04, 1.09)

Hence, the solution to the system of equations is (-3.88, 0.66) and (3.04, 1.09)

Read more about system of equations at

brainly.com/question/13729904

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3 years ago

amy is building a house. the basement floor is at -15 feet, The roof of the house is above the ground 25 feet. Write an inequali

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3 years ago

Question 1

Solnce55 [7]

The probability to get heads on all three quarters is 1/8.

<u>Step-by-step explanation:</u>

<u>Given data :</u>

Leslie has three quarters.
Each quarters have 2 sides namely the Head and the Tail.

<u>It can be determined that :</u>

The total number of possible outcomes you can get from the three quarters with two sides = 2³ ⇒ 2×2×2 ⇒ 8 total outcomes.

If she drops all three of the quarters in the same time, there will be a total of 8 different outcomes.

These 8 outcomes include (T,T,T), (H,T,T), (H,H,T), (T,H,H), (T,T,H), (T,H,T), (H,H,T), (H,H,H).

From the above shown different possible outcomes, you need to find the probability that all three quarters will land on Heads.

Probability(3 heads)= No. of outcomes with 3 heads / Total no.of outcomes

We know that,

The no.of outcomes with 3 heads is only 1.
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⇒ P( 3 heads ) = 1/8

The probability to get heads on all three quarters is 1/8.

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4 years ago

Dwayne buys 1 loaf of bread and 6 eggs for $4.45. Sheila buys 1 loaf of bread and 1 dozen eggs for $5.65. Let x be the cost, in

kobusy [5.1K]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following :

Let x = cost of a loaf of bread ; y = cost of an egg

Dwayne :

1 loaf of bread and 6 eggs :

X + 6y = 4.45 - - - (1)

Sheila :

X + 12y = 5.65 - - - (2)

From (1);

X = 4.45 - 6y

In (2):

(4.45 - 6y) + 12y = 5.65

4.45 + 6y = 5.65

6y = 5.65 - 4.45

6y = 1.2

y = 0.2

From X = 4.45 - 6y:

X = 4.45 - 6(0.2)

X = 4.45 - 1.2

X = 3.25

Cost of a loaf of bread = $3.25

Coat of an egg = $0.2

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4 years ago