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BARSIC [14]
3 years ago
5

Complete the solution of the equation Find the value of y when x equals 11. 7x-9y=23

Mathematics
1 answer:
Setler79 [48]3 years ago
8 0
Replace the variable x with it's value in the equation and solve for y.

7(11) - 9y = 23

77 - 9y = 23

Subtract both sides by 77.

77 - 9y - 77 = 23 - 77

-9y = -54

Divide both sides by -9.

-9y / -9 = -54 / -9

y = 6

So, 6 is the answer.
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Find the value of a and b in (a,2)=(2,b)​
Ksenya-84 [330]

Answer:

a=2 and b=2...............

8 0
3 years ago
sweet t will feed the cat 4 ounces of food each day for 10 days . how many ounces of food will the cat eat in 10 days
DiKsa [7]
The cat will eat 40 ounces of food in 10 days.  10 x 4 = 40. 
8 0
3 years ago
Read 2 more answers
train travelling at a uniform speed covers a distance of 255 km in Find the speed of the train and 3 4/5 1 1/2 the distance cove
serg [7]

The speed of the train is <u>150 km/hour</u>.

The distance covered by the train in 3 4/5 hours is <u>570 km</u>.

The speed of a body is calculated using the formula, <u>speed = distance/time.</u>

The distance covered is calculated using the formula, <u>distance = speed*time</u>.

The time taken by a body is calculated using the formula, <u>time = distance/speed</u>.

In the question, we are asked for the speed of a train, when it covers a distance of 225 km in 1 1/2 hours.

Distance = 225 km.

Time = 1 1/2 hours = 1.5 hours.

<u>Speed = Distance/Time</u> = 225/1.5 km/hour = 150 km/hour.

Now, we are asked to calculate the distance covered by the train in 3 4/5 hours.

Speed = 150 km/hour.

Time = 3 4/5 hours = 3.8 hours.

<u>Distance = Speed*Time</u> = 150*3.8 km = 570 km.

Thus, the speed of the train is <u>150 km/hour</u>.

The distance covered by the train in 3 4/5 hours is <u>570 km</u>.

The provided question is incorrect. The correct question is:

"A train at a uniform speed covers a distance of 225 km in 1 1/2 hours. Find the speed of the train and the distance covered in 3 4/5 hours.

Learn more about speed, time, and distance at

brainly.com/question/17146782

#SPJ1

6 0
2 years ago
A cable TV company charges a flat fee of $25 for basic cable service, plus
vovangra [49]

Answer:

8

Step-by-step explanation:

Each movie costs $4 since the bill increased by $4 when the customer watched a movie.

$29 - $25 = $4

Create an equality using this information.  Solve for x.

25 + 4x > 60

(25 + 4x) - 25 > (60) - 25

4x > 35

(4x)/4 > (35)/4

x > 8.75

Since the bill must stay under $60, round the answer down.  The customer can watch 8 movies with the given price range.

3 0
3 years ago
HELP PLEASE I NEED YOUR HELP
Sindrei [870]

Answer:

C

Step-by-step explanation:

7 0
3 years ago
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