How do I solve a literal equation. Ex: Mary, has to pay x Kg meatballs, y kg potatoes and z litres juice

Answers

Answer 1

Answer: so first off, you need another bit of information. if we were looking at how much it would cost her. we would need to know the price of meatballs, potatoes and juice. from then, it is simple

we have x times by the cost of meatballs per kilo, y times by the cost of potatoes per kilo, and z times by the cost of juice per litre.

so, if meatballs were $10 a kilo, potatoes $5 and juice $1. it would be

10*x + 5*y + 1*z

that's the total cost

Related Questions

Which statement is true about the following system of equations?3x-1/2y=1x+2y=7
A man invests a certain amount of money at 2% interest and $800 more than that amount in another account at 4% interest. At the end of one year he earned $112 in interest. How much money was invested in each account?Which of the following equations could be used to solve the problem?A.)0.02x + 0.04(800) = 112B.)0.02x + 0.04(x + 800) = 112C.)0.04x + 0.02(x + 800) = 112
Pls explain me how to solve this
Please answer the question from the attachment.
Factor the polynomial. 54c3d4 + 9c4d2

If a certain medicine cures 90% of the people who take it, what is the probability that if 9 people take the medicine that 6 will be cured?A) 0.01
B) 0.02
C) 0.04
D) 0.33

Answers

Answer:

that was wrong it was 0.04 so C

Step-by-step explanation:

The answer is 0.33

Took the test

Mike is three times as old as his little sister, Mary. In 4 years, he will be twice as old as Mary. How old is Mary?

Answers

x-the age of Mike
y-the age of his sister

x=3y

x+4=2(y+4)
3y+4=2y+8
3y-2y=8-4
y=4 years

x=3*4=12 years

Mary: x yrs old
Mike: 3x yrs old

In four yrs:

Mary: x+4 yrs old
Mike: 3x+4 yrs old

As the text of task:

3x+4=2(x+4)
3x+4=2x+8
3x-2x=8-4
x=4

Mary is 4 yrs old

1. Given ΔQRS (is congruent to) ΔTUV, QS = 3v + 2 and TV = 7v - 6, find the length of QS and TV. Provide a detailed response below, please. I was not provided with a picture, unfortunately.

Answers

Because ΔQRS is congruent to ΔTUV, the the segments GS and TV are also congruent due to the letter order (Q and T are first and S and V are 3rd.) Since they are congruent QS=TV. So 3v + 2 = 7v - 6

Work:
3v + 2 = 7v - 6
+6 +6
3v + 8=7v
-3v -3v
8 = 4v
4 4
2 = v

3(2) + 2 = GS
6+2 = GS
8 = GS

7(2) - 6 = TV
14-6=TV
8 = TV

Final Answer: 8=QS and 8=TV

So, we know the 2 triangles are congruent, that means that all complementary sides are congruent too. Draw out the triangle, make it look equal to each other, and put down the respective names down, IN ORDER, for both triangle. Then, you will see that QS and TV are complementary to each other, meaning they are congruent to each other. So, we can set their two equation equal to each other. Equation: 3v + 2 = 7v - 6. Now it's all algebra, solve for v, you should get 2. Now, we plug it back in for one of the equations (either one is fine because they are congruent to each other already), you should get 8 as your answer. I hope this helps!

Need help with this problem

Answers

Answer:

39°

Step-by-step explanation:

Internal angles of the triangle are:

x, 60° and (180° -99°)

Angle x is:

x = 180° - (60° + 81°)
x = 180° - 141°
x = 39°

If the average of three numbers is V if one number is Z and another is y what is the remaining number ?

Answers

The remaining number, using the concept of average, is $3V-y-z$

It is given that

Average of three numbers = V

One number = z

Another number = y

What is an average?

Average is the sum of observations divided by a number of observations.

Let us take the third number x

From the question

$(x+y+z)/(3) = V$

$x+y+z = 3V\n\nx=3V-y-z$

Therefore, the remaining number is $3V-y-z$

To get more about the average visit:

brainly.com/question/6504879

The formula for an average of three numbers is (x+y+z)/3. So if V equals the average, then we find the formula
V = (x+y+z)/3
We are now looking for x. We can divide each of the variables in the parentheses by 3, making the formula
V = x/3 + y/3 + z/3
So now bring the unwanted variables to the same side as V.
V - y/3 - z/3 = x/3
Now multiply both sides by 3 to find x.
3V - y - z = x

x = 3V - y - z

Fill two of the pools with water, Each pool will be filled to a depth of 5 feet. The other necessary dimensions are given below. How much water is necessary for each of the elements below? The isosceles triangle pool: height 20ft and base 35ft
The equilateral triangle pool: height 52ft and base 60ft

Answers

Find the volume of each pool. The formula for triangular prisms is length*width*height*1/2. Or, since your numbers give the base, you can just multiply the height and the base, then multiply by 5, then divide by 2 to get the answer.
So, 20*35*5/2 = 1,750 ft³ is the equation for the isosceles triangle, and the equilateral triangle pool is 52*60*5/2 = 7,800 ft³.
The volume = how much water you need for each pool.
Hope that answered your question.

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