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Pani-rosa [81]
3 years ago
9

Mrs.timmons greens team club has 39 students they are taking a field trip to a park to study pond life if the students travel by

car, each car has 4 students . how many cars will she need .
how do i answer this ?
Mathematics
1 answer:
timofeeve [1]3 years ago
3 0
Show your work >> 39/4= 9.75 (or 9 3/4) so she will need 10 cars
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A box with a height (x+5) has a square base with side x. A second box with height (x+2) has a square base with side (x+5). If th
sergeinik [125]

Answer :

x = -1.43

Explanation :

As given ,

The first box has a height (x+5) has a square base with side x

So, the Length and Breadth of the box are x and x respectively.

Now,

The volume of first box = Length×Breadth×Height

                                       = (x).(x).(x+5)

                                       = x²(x+5)

⇒The volume of first box = x²(x+5)

Now,

Given that , the second box with height (x+2) has a square base with side (x+5).

So, the Length and Breadth of the box are (x+5) and (x+5) respectively.

Now,

The volume of second box = Length×Breadth×Height

                                             =  (x+5). (x+5).(x+2)

                                              = (x+5)²(x+2)

⇒The volume of second box =  (x+5)²(x+2)

Now,

Given that,  the two boxes have the same volume

⇒x²(x+5) =  (x+5)²(x+2)

⇒x² =  (x+5)(x+2)

⇒x² =  x² + 2x + 5x + 10

⇒x² - x² =  7x + 10

⇒0 =  7x + 10

⇒ 7x = -10

⇒ x = -\frac{10}{7} = -1.43

⇒ x = -1.43

As volume of first box = x²(x+5) = (-1.43)²(-1.43+5) = 7.30 ≈ 7

As volume of second box =  (x+5)²(x+2) = (-1.43+5)²(-1.43+2) = 7.26 ≈ 7

At x = -1.43, Volume of both the boxes are same.

4 0
2 years ago
A line is drawn on a coordinate grid by the equation x = 6. Which of the following lines would represent a row parallel to it?
AlexFokin [52]

Answer: D

Step-by-step explanation:

5 0
2 years ago
The aircraft A330 flies at an average speed of 400 miles per hchor. The expression, 400t gives the distance traveled by the airc
Olenka [21]

The expression:

d(t)=400t

gives the distance traveled by the aircraft in t hours, so, for t = 6:

\begin{gathered} t=6 \\ d(6)=400(6) \\ d(6)=\frac{2400mi}{h} \end{gathered}

6 0
10 months ago
Simplify<br><br> 14 +{ -2 + 3 [ 1 +3 ( -6 -2 ) ] }
gregori [183]
ANSWER: -57
14+{−2+3[1+3(−6−2)]}
= 14+{−2+3[1+3(-8)]}
= 14+{−2+3[1+(-24)]}
= 14+{−2+3[1-24]}
= 14+{−2+3[-23]}
= 14+{−2+[-69]}
= 14+{−2-69}
= 14+(-71)
= 14 - 71
= -57
5 0
2 years ago
Please help!!! Will give brainly if correct!! 50 points
77julia77 [94]
The answer is 5:4, so A.
5 0
3 years ago
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