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MAVERICK [17]
3 years ago
15

Answer step by step

Mathematics
1 answer:
enot [183]3 years ago
6 0
Consider, please, this solution/explanation:
1. suppose, that number of cars is 'x', numbers of buses is 'y'.
2. according to the condition 'a total of 32', it means that x+y=32. This is the 1st equation.
3. according to the condition in one car are 3x persons, in one bus are 27y persons, and totaly 3x+27y=408 people. This is the 2d equation.
4. if to solve the system of two equations:
\left \{ {{x+y=32} \atop {3x+27y=408}} \right. \ =\ \textgreater \  \  \left \{ {{x=19 (cars)} \atop {y=13(buses)}} \right.

Answer: 13 - b., 19 - c.
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Find the greatest and least number from 5,0,8,9 and 7​
Dvinal [7]

<u>Answer:</u>

  • Greatest number: 98750
  • Least number: 5789

<u>Explanation:</u>

<em>To find the greatest number with the following values, we must arrange the numbers in descending form. </em>

<em>=> We can clearly tell that the numbers in descending form is 9 > 8 > 7 > 5 > 0</em>

<u>Hence, the greatest number with the following numbers (5,0,8,9, and 7) will be 98750.</u>

<h3>__________________________________________________</h3>

<em>To find the least number with the following values, we must arrange the numbers in ascending form.</em>

<em>=> We can clearly tell that the numbers in ascending form is 0 < 5 < 7 < 8 < 9</em>

<u>Hence, the least number with the following numbers (5,0,8,9, and 7) will be 5789</u>

6 0
2 years ago
Find the surface area of the tool box. Round your answer to the nearest tenth and explain your answer. ​Pls I NEED THE ANSWER NO
Andrej [43]

Answer:

807.8 in^2

Step-by-step explanation:

The total area of the box is the sum of the areas of all faces of the box. The top, bottom, front, and back faces are rectangles 18 in long. The end faces each consist of a rectangle and a triangle. We can compute the sum of these like this:

The areas of top, bottom, front, and back add up to be 18 inches wide by the length that is the perimeter of the end: 2·5in +2·8 in + 9.6 in = 35.8 in. That lateral area is ...

(18 in)(35.6 in) = 640.8 in^2

The area of the triangle on each end is equivalent to the area of a rectangle half as high, so we can compute the area of each end as ...

(9.6 in)(8.7 in) = 83.52 in^2

Then the total area is the lateral area plus the area of the two ends:

640.8 in^2 + 2·83.52 in^2 = 807.84 in^2 ≈ 807.8 in^2

7 0
2 years ago
Both the diameter and height of a cylinder vase are 2.5 times greater than a dimilar vase. The surface area of the smaller vase
faust18 [17]

Both diameter and height are scaled by 2.5.

Area is measured in squared units ( square centimetres).

Square the scale factor:

2.5^2 = 6.25

Multiply the area of the smaller vase by the scale:

2826 x 6.25 = 17,662.5 square cm.

7 0
3 years ago
A bean plant grows at a constant rate for a month. After 10 days, the plant is
Rzqust [24]

The height of plant y =x+25

7 0
2 years ago
Please answer question image below.
anastassius [24]
Yes it has a constant rate of change which is 3/2
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