3 years ago

one number is five more than twice another . if their sum is decreased by ten the result is twenty. find the numbers

Mathematics

1 answer:

lina2011 [118]3 years ago

4 0

Answer:

(25/3, 65/3) or x=25/3, y=65/3 or The numbers are 25/3 and 65/3.

Step-by-step explanation:

2x+5=y

(x+y)-10=20

-------------------

2x+5=y

x+y=20+10

---------------

y=2x+5

x+y=30

------------

x+2x+5=30

3x+5=30

3x=30-5

3x=25

x=25/3

y=2(25/3)+5

y=50/3+5

y=50/3+15/3=65/3

x=25/3, y=65/3.

You might be interested in

Write an equation in standard form of an ellipse that is 8 units high and 18 units wide. The center of the ellipse is (0,0)

zhenek [66]

Check the picture below.

$\bf \begin{cases}
h=0\\
k=0\\
a=9\\
b=4
\end{cases}\implies \cfrac{(x-0)^2}{9^2}+\cfrac{(y-0)^2}{4^2}=1\implies \cfrac{x^2}{81}+\cfrac{y^2}{16}=1$

3 0

3 years ago

Read 2 more answers

Y - 2/5 = 1 3/5 (plz show work)

Brums [2.3K]

Answer:

y=2

Step-by-step explanation:

that's the answer hope u understand it

7 0

2 years ago

Read 2 more answers

Difrence Bewteen3/4 and 1 1/2

Doss [256]

Answer:

the difference is 3

Step-by-step explanation:

1 1/2 is equal to 6/2 so the difference would be 3

3 0

2 years ago

There are 6 friends that want the same number of oranges and there are 300 oranges how much number of oranges would they get eac

zimovet [89]

Answer:50

Step-by-step explanation:Since there are six friends and there are 500 oranges that would be 500 divided by 6 which equals 50

6 0

2 years ago

Eduardo worked 40 regular hours last week plus 7 hours over time at time and a half his gross pay was 757.50 what is his hourly

Diano4ka-milaya [45]

Answer:

divide

Step-by-step explanation:

and youll find the answer

4 0

2 years ago

Read 2 more answers