What's substitution for x=y-7;x+8y=2

Answers

Answer 1

Answer: X=2-8y
y=x+7
y=2-8y+7
9y=2+7
9y=9
y=1

Answer 2

Answer: x=y−7;x+8y=2
Step: Solve x=y−7 for x:Step: Substitute y−7 for x in x+8y=2:
x+8y
=2y−7+8y=2
9y−7=2(Simplify both sides of the equation)
9y−7+7=2+7(Add 7 to both sides)9y=9
9y/9=9/9(Divide both sides by 9)
y=1
Step: Substitute 1 for y in x=y−7:x=y−7
x=1−7
x=−6(Simplify both sides of the equation)
Answer:x=−6 and y=1

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Thomas is planning a trip to India. He is currently deciding which cities he would like to visit during his stay. The table below shows possible cities for Thomas to visit, as well as how much money he expects to need at each one. All costs are given in Indian rupees (Rs.). City
Cost (Rs.)
Jaipur
6,920
Mumbai
9,464
Thiruvananthapuram
9,160
Lucknow
5,276
Bhopal
8,268
Bhubaneswar
7,109
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6,303
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Thomas had originally planned to visit Thiruvananthapuram, Mumbai, Bhubaneswar, and Bengaluru, but his budget of Rs. 25,300 makes that impossible. Which of the following itinerary changes will allow Thomas to stay within his budget? (Consider each option individually, rather than as a group.)

I. Swap Thiruvananthapuram for Jaipur and drop Bengaluru.
II. Drop Bhubaneswar.
III. Swap Mumbai for New Delhi, Thiruvananthapuram for Jaipur, and Bhubaneswar for Lucknow.
a.
I and II
b.
III only
c.
I and III
d.
I, II, and III

Answers

The itinerary changes that will allow Thomas to stay within his budget is C. I and III. Check how to reach the result below.

What is a budget?

It should be noted that a budget simply means an estimate of the income and expenditure of an individual.

In this case, the itinerary changes that will allow Thomas to stay within his budget include swapping Thiruvananthapuram for Jaipur and drop Bengaluru and swapping Mumbai for New Delhi, Thiruvananthapuram for Jaipur, and Bhubaneswar for Lucknow.

In this case, a trip to Mumbai costs

9,464 while a trip to New Delhi is 6,303. Therefore, a trip to New Delhi is better in this scenario as it more budget friendly.

Learn more about budget on:

brainly.com/question/6663636

Swap Thiruvananthapuram for Jaipur and drop Bengaluru and Swap Mumbai for New Delhi, Thiruvananthapuram for Jaipur, and Bhubaneswar for Lucknow.this option is cheaper for thomas

Which of the binomials below is a factor of this trinomial?5x2 + 15x -50
O A. X-10
O B. X-2
O C. x+10
O D. x+ 2

Answers

Answer:

5( x+5) (x-2)

Step-by-step explanation:

5x^2 + 15x -50

Factor out a 5

5(x^2 +3x - 10)

What 2 terms multiply to -10 and add to 3

5*-2 = -10

5-2 = 3

5( x+5) (x-2)

5. A ladder leans against a building. The top of the ladder touches the building 10 feet above the ground. The foot of theladder is 4 feet from the building. Find, to the nearest degree, the angle that the ladder makes with the level ground.
(3 points)

Answers

Answer:

68 degrees

Step-by-step explanation:

The ladder, the building and the ground together make up a right triangle with angle of elevation to be determined.

The side opposite this angle is 10 ft; the distance of the foot of the ladder from the building is 4 ft. Thus,

tan x = (opp side) / (adj side) = 10/4. Using the inverse tangent function, we find that the angle in question is

arctan (10/4) = 68 degrees

At 7 A.M the temperature was 4 .At 9A.M it was a degrees warmer. What was the temperature at 9 A.M

Answers

It was 5 degrees at 9 am

Answer:

5 I’m guessing

Step-by-step explanation:

If it’s a degrees warmer and to the right of a number line is warm in weather then it would be 5.

A wheel has a circumference of 7 5/6 feet .How many times dies it turn in 423 feet

Answers

Circumference of the wheel is the outer part of the wheel. We know that the wheel is turning "x" times over 423 feet. What we're trying to find is how many turns occur over 423 feet.

What we got to find is the length of the wheel. Wait! They give it to us; the circumference is the length.

The wheel is traveling that length "x" amount of times for 423 feet. So, we have
7 5/6 × x = 423.

Divide to get x by itself and you get 54. The wheel spun 54 times. Any questions then leave a comment. Good luck!

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