All categories

3 years ago

375 A system of equations is shown below.

Mathematics

1 answer:

jolli1 [7]3 years ago

8 0

B is the one I would go with, multiplying everything by 3 in the equation 3 would eliminate y.

You might be interested in

Simplify 3^-3 Show work

dmitriy555 [2]

$\bf a^{-n} \implies \cfrac{1}{a^n} ~\hspace{4.5em} a^n\implies \cfrac{1}{a^{-n}} ~\hspace{4.5em} \cfrac{a^n}{a^m}\implies a^na^{-m}\implies a^{n-m} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ 3^{-3}\implies \cfrac{1}{3^3}\implies \cfrac{1}{27}$

5 0

3 years ago

Maria plans to fill pots in her garden with soil and plant food. Maria has 8 1/2 quarts of soil as 1 1/2 quarts of plant food. E

babymother [125]

1. You have the following information:

- Maria has 8 1/2 quarts of soil.
- Each pot requires 3/4 quart of soil.

2. Keeping this on mind, you can convert the mixed number 8 1/2 and the fracion 3/4 to decimals, as below:

8 1/2=8.5 quarts
3/4=0.75 quarts

3. Therefore, you have:

1 pot-----0.75 quarts
x-----8.5 quarts

x=(8.5x1)/0.75
x=11 pots

For how many pots does Maria have enough soil?

The answer is: 11 pots

8 0

3 years ago

Cities A & B are 5 inches apart on a map. Cities Ce Dare 4 inches apart. If C & D are 900 miles apart how many miles apa

Afina-wow [57]

Answer:

Cities A and B are 1,125 miles apart

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Distance between A and B in the map = 5 inches

Distance between C and D in the map = 4 inches

Real distance between C and D = 900 miles

2. How many miles apart are cities A and B?

We will solve the question, using Direct Rule of Three, as follows:

Distance in the map Real distance

A - B 5 inches x

C - D 4 inches 900 miles

***************************************************

4x = 900 * 5

4x = 4,500

x = 4,500/4

x = 1,125 miles

Cities A and B are 1,125 miles apart

Same answer to question 14701120, answered by me today

8 0

3 years ago

Plz help I don’t under stand how to get this common ratio

Talja [164]

Answer:

2 over 5

Step-by-step explanation:

Common ratio =

7/ (35/2) = (14/2) / 7

Our answer became 2/5

7 0

3 years ago

The difference between the square of two numbers is five. Twice the square of the second number is subtracted from three times t

svet-max [94.6K]

Let us assume the first number to be = x
Let us assume the second number to be = y
Then
x^2 - y^2 = 5
x^2 = y^2 + 5
And
3x^2 - 2y^2 = 19
Multiplying the first equation by -2, we get
- 2x^2 + 2y^2 = - 10
Now subtracting the two equations, we get
x^2 = 9
x = 3
Putting the value of "x" in the first equation, we get
(3)^2 - y^2 = 5
9 - y^2 = 5
y^2 = 4
y = 2

I hope that the procedure is clear enough for you to understand and this is the answer that you were looking for.

5 0

3 years ago