3 years ago

X+2y=10. x+y=6 SOLVE for the value of x and y.

1 answer:

7 0

X+2y=10 ----Eq.1
x+y=6---------Eq.2
from Eq2.
x=6-y
Subtituting the value of X in the first equation
6-y+2y=10
6+y=10
y=4
Plug y=4 in equation 2.
x+4=6
X= 2

You might be interested in

spencer spent 4 hours doing chores over the weekend. If he spent 2/3 for an hour on each chore, how many chores did he do.

Elina [12.6K]

2/3 + 2/3 + 2/3 + 2/3
8/3
2 2/3

4 0

3 years ago

What is the shape of the graph of the function? h(x) =2.05*3^x

myrzilka [38]

Answer: A

Step-by-step explanation:

6 0

3 years ago

The temperature on June 23rd increased from 67 degrees at 7:00 AM to 87 degrees at 2:00 PM.

Svetlanka [38]

Answer:

154

Step-by-step explanation:

7 0

3 years ago

Use the number line to identify the least value, first quartile, median, third quartile, and greatest value of the data.

Nady [450]

Answer:

Step-by-step explanation:

7 0

2 years ago

King Kong stands on the edge of the roof of a 62 foot high building. You poke your head out of a manhole and measure the angles

Oliga [24]

Answer:

46.55 feet (approx).

4.48 feet ( approx )

Step-by-step explanation:

Let x be distance manhole from the building. ( in feet ) and y be the height of the King Kong.

∵ The angles of elevation to the top of King Kong's head and to his feet are 55 degrees and 53.1 degrees respectively.

By the trigonometric ratio,

$\tan 53.1^{\circ}=\frac{62}{y}$

$\implies y =\frac{62}{\tan 53.1^{\circ}}\approx 46.55$

Thus, the distance of the manhole from the building would be 46.55 feet (approx).

Again by the trigonometric ratio,

$\tan 55^{\circ}=\frac{62+x}{46.55}$

$\tan 55^{\circ}\times 46.55=62 + x$

$66.48 = 62 + x$

$\implies x = 66.48 - 62 = 4.48$

Hence, King Kong is approximately 4.48 feet long.

7 0

3 years ago