If (-7,y ) is a solution to the equation 2x -7y = 42, what is the value of y?I don't think this problem is worded right or something?
Please help

Answers

Answer 1

Answer: they mean -7 is the x value so you plug that into the equation
-14 - 7y = 42
-7y = 56
y = -8

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What is the likelihood of choosing a day that falls on the weekend when randomly picking a day of the week?

Solve for x. Round to the nearest tenth of a degree, if necessary.

Answers

Sin (angle) = opposite leg / hypotenuse

Sin(x) = 2.1/4

x = arcsin(21./4)

x = 31.7 degrees

Eighty percent of the tourists in a group took a bus and the rest took a taxi. The bus fare per person is 40% less than the taxi fare per person. All together they paid $68 for the tour transportation, and the bus fare per person is $3. How many tourists are in the group?

Answers

Answer:

Bus = 16 Tourists and Taxi = 4 Tourists

Total = 20 Tourists

Step-by-step explanation:

According to the Question,

Given, 80% of the tourists in a group took a bus and 20% took a taxi. Thus the Ratio of Tourists Travel by Bus toTaxi is 4x:1x.

The bus fare per person is 40% less than the taxi fare per person. And Also Given that the bus fare per person is $3 Thus, The Taxi fare per person would be $5.

All together they paid $68 for the tour transportation.

4x × 3 + x × 5 = 68
12x × 5x = 68
17x =68
x=4

And, the Ratio of Tourists Travels by Bus toTaxi is 4x:1x . So,the Tourists Travel by Bus to Taxi is 16 and 4 Respectively . Total = 20 Tourists are in the Group.

John needs to make a scale drawing of his school building for art class. If the building is 256.25 meters long, and John scales it down using a ratio of 25 meters to 1 inch, how long will the building be in the sketch?

Answers

So we want to know how long will the scale drowing of the building be if the building is 265.25m long and the scale is 1 inch on the drawing is equal to 25 meters of the building. To find the answer lets scale the building. If the real length of the building is 256.25 meters, then the number of inches will be: 256.25/25=10.25 inches.

Which two ordered pairs would represent points on a graph of 5x + 6y = 12?A.(-3, 6)
B.(0, 2)
C.(5, 6). D.(6,-3)
E. (11, 12)

Answers

The two ordered pairs would represent points on a graph of 5x + 6y = 12 is (0, 2) and (6, -3)

How to determine the ordered pairs on the point on a graph

From the question, we have the following parameters that can be used in our computation:

5x + 6y = 12

Using the ordered pair (0, 2), we have

5 * 0 + 6 * 2 = 12

12 = 12

Using the ordered pair (6, -3), we have

5 * 6 + 6 * -3 = 12

12 = 12

Hence, the ordered pairs on the point on a graph are (0, 2) and (6, -3)

Answers

If they all have to be positive whole numbers, then the only
way you could do it is 1, 2, 3, 4, and 5 .
(They could be in any order.)

If they don't all have to be positive, or they don't all have to be
whole numbers, then there are an infinite number of ways to do it.

2 , 4 , 6 , 8 , and negative 5

0.2 , 0.8 , 1.0 , 1.4 , and 1.6

etc.

Which statement best applies to the slope of the line below?A.
the slope is negative
B.
the slope is zero
C.
the slope is positive
D.
the line has no slope