3 years ago

Solve the following system:

Mathematics

2 answers:

alukav5142 [94]3 years ago

7 0

Answer:

B (3 ; 6)

Step-by-step explanation:

y = x + 3

4x + y = 18

4x + x + 3 = 18

5x = 18 - 5

5x = 15

x = 15 : 5

x = 3

y = x + 3

y = 3 + 3

y = 6

Gwar [14]3 years ago

7 0

Answer:

B. (3, 6)

Step-by-step explanation:

y = x + 3

4x + y = 18

4x + x + 3 = 18

5x = 18 - 3

5x = 15

x = 3

y = x + 3 = 3 + 3 = 6

(3, 6)

You might be interested in

a gardener has a rectangular garden with a length of 10 feet and a width of 5. the Gardner plans to increase the length of the g

frutty [35]

The area of the enlarged garden will be 4,225 feet

5 0

3 years ago

Circle X has radius r X = 6 units and circumference C X = 12 π units. Circle Y has circumference C Y = 6 units. Which equation i

slega [8]

Answer:

$ry=\frac{rx}{2\pi }$

Step-by-step explanation:

we know that

The circumference of a circle is equal to

$C=2\pi r$

we have

Circle X

$rx=6\ units$

$Cx=12\pi\ units$

Circle Y

$Cy=6\ units$

Find the radius ry

we know that

$Cy=2\pi ry$

substitute the value of Cy

$6=2\pi ry$

$ry=\frac{6}{2\pi }$

Remember that the value of rx is $rx=6\ units$

substitute

$ry=\frac{rx}{2\pi }$

6 0

3 years ago

Your cell phone plan costs 55 dollars a month plus 35 cents per minute. Witte an equation to represent the monthly bill

Tems11 [23]

Total Cost = 55+0.35x

X represents the amount of minutes you spend talking on the phone.

4 0

4 years ago

Read 2 more answers

According to NASA, an average of one cataloged piece of space debris has fallen back to Earth each day for the past 50 years. Su

konstantin123 [22]

Have a great day :)

4 0

3 years ago

Graph the compound inequality on the number line. X ≤4 or ≥ 7

notsponge [240]

Answer:

The number line is attached.

Step-by-step explanation:

The holes are filled in since they are both inclusive of the value they hold, and there are two separate lines since they are broken apart by "or".

4 0

2 years ago