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NemiM [27]
3 years ago
9

Help please... x = 3y 4x + 5y = 34 solve for x and y Help help

Mathematics
1 answer:
WARRIOR [948]3 years ago
7 0

Answer: y=2 and x=6

Step-by-step explanation:

x=3y

4x+5y=34

From equation ( 1) x=3y thus substituting in eqn(2)

4(3y)+5y=34

12y+5y=34

17y=34

y=34÷17=2

Thus y=2

Putting y=2 in eqn(1)

x=3y

x=3(2)

x=6

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I need help please ​
Natasha2012 [34]

Answer:

  B.  $2862

Step-by-step explanation:

Using n=5 in the given equation, we get ...

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  A(5) = 2862.00

In year 5, you will have $2862 in the account.

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<em>Comment on the given equation</em>

The given equation tells you the amount in the account at the <em>beginning</em> of the year, before it earns any interest. Since that is the equation given, we presume that is the answer desired. In most "account balance" problems, you are interested in the amount at the <em>end</em> of the interest-earning period.

4 0
4 years ago
If the point P is on the graph of a function f, find the corresponding point on the graph of the given function.. P(5, 8); y = 1
Sveta_85 [38]
We only know the value of <span>f(5)</span> therefore we need to figure out what we would put in for x in <span>f(<span>1/3 </span>x)</span> to get 5 set <span><span>1/3 </span>x=5</span><span>x=15
</span>now if <span>x= 15</span> then <span>f(<span>1/3 </span>x)
            = f(<span>1/3</span>×15)
            = f(5)=8
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7 0
3 years ago
What is the area to this figure?​
Tresset [83]

Answer:

21 ft^2

Step-by-step explanation:

split area into two parts shown by the red line and add up both areas to find total area.

area = b×h/2

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triangle 2 = (3×4)/2

=12/2

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total area = 15+6

7 0
4 years ago
Read 2 more answers
Show detail for answering a larger number is five more than twice a smaller number Their sum is 80 find the numbers
tatyana61 [14]
20 times 4= 80 and ...

4 0
3 years ago
a square has a surface area of 24 square meters. what is the area of each face? What is the length of each edge?
Lisa [10]
Do you mean a cube has a surface area?
If so we identify by how many faces a cube has which is 6. That would mean to find the surface area we add each squares area to get 24. So we divide 24 and 6 to get the area of each face.

24 / 6 = 4 m^2

We know that a square has equal side lengths thus finding that A = a^2. We find the square root of 4 to get the length of each square.

sqrt 4 = 2 m
5 0
4 years ago
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