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jeka57 [31]
3 years ago
15

28 students travel on a field trip. They bring a van that can seat 12 students. Elena and Kiran's teacher asks other adults to d

rive cars that seat 3 children each to transport the rest of the students.
Mathematics
1 answer:
Valentin [98]3 years ago
5 0

Answer:

Step-by-step explanation:

Yes, she can use this inequality and it does matter since the number of cars that the inequality provides will need to be equal to or more than that number in order for all the students to be able to go. Therefore, if we apply the inequality it would give us the minimum number of cars needed (n) like so

12  + 3n > 28   ... subtract 12 on both sides  

3n > 16  ... divide both sides by 3

n > 5 1/3

Since there can't be 1/3 of a car and the number of cars needed must be higher than 5 1/3 then we would need a total of 6 cars to take all of the children.

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What is the reciprocal of 1 and 1/9
podryga [215]

Answer:

reciprocal of 1 is 1 and 1/9 is 9.

6 0
3 years ago
Solve.<br> -317 - 221 - (-354)<br><br> A. 892<br> B. -892<br> C. 184<br> D. -184
Liula [17]
−317−221−(−354)=
−538−(−354)=
<span>−184

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8 0
3 years ago
PQR is a right-angled triangle.
ICE Princess25 [194]

Step-by-step explanation:

3 0
3 years ago
The figure is made up of a cylinder and a sphere which has been cut in half. The radius of each half sphere is 5 mm. What is
alexgriva [62]
<h2>Answer:</h2>

<em>Rounded to the nearest hundredth the volume of the composite figure is:</em>

<em>1308 33 cubic millimeters</em>

<h2>Explanation:</h2>

Hello! I wrote the complete question in a comment above. The volume of a cylinder is defined as:

V_{c}=\pi r^2 h \\ \\ r:radius \\ \\ h:height

While the volume of half a sphere is:

V_{hs}=\frac{2}{3}\pi r^3

Since we have 2 half spheres, then the volume of these is the same as the volume of a sphere:

V_{s}=\frac{4}{3}\pi r^3

Then, the composite figure is:

V=\pi r^2 h +\frac{4}{3}\pi r^3 \\ \\ V=\pi r^2(h+\frac{4}{3}r)

The radius of the cylinder is the same of the radius of each half sphere. So:

r=5mm \\ \\ h=10mm \\ \\ \\ V=(3.14) (5)^2((10)+\frac{4}{3}(5)) \\ \\ V=25(3.14)(10+\frac{20}{3}) \\ \\ \boxed{V\approx 1308.33mm^3}

7 0
3 years ago
Use this area model to find One-fourth divided by 3.
eimsori [14]

Answer:

It is

Step-by-step explanation:

1/12

That's correct

6 0
2 years ago
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