All categories

3 years ago

If 7 gallons of paint are used to paint 4 classrooms at Cascade Middle

Mathematics

1 answer:

denis-greek [22]3 years ago

7 0

Answer: 28 gallons of paint needed to paint 16 classrooms.

Step-by-step explanation:

As 7 gallons Paint 4 classrooms so if we need to paint 16 classrooms which four times 4 classrooms so 7*4=28 gallons will be needed to paint 16 classrooms

You might be interested in

Find hypotenuse,perpendicular and base

vampirchik [111]

Answer:

Hypotenuse = XY = 17 cm

Base = YZ = 15 cm

Perpendicular = XZ = 8 cm

7 0

3 years ago

What is (5y)^3 without exponents

Kruka [31]

Answer:

125y^3

Step-by-step explanation:

5^3= 5*5*5=125

y^3

5 0

3 years ago

Read 2 more answers

South of the White House in Washington, D.C., is the President’s Park South, or the Ellipse, which hosts events such as the Whit

kari74 [83]

To answer this, we need to start with the standard equation for an ellipse:
(x^2/a^2)+(y^2/b^2)=1
Where a is one half of one axis, and b is one half of the other.
The problem states that one axis is 1057 ft, and the other is 880 ft, so divide these values by 2 and square them. This results in:
(x^2/279,312.25)+(y^2/193,600)=1
For verification, if you have a graphing calculator, solve for y, set the size of the window so it should perfectly fit the ellipse, and check (it does)

3 0

4 years ago

A triangle has an area of 30 cm2. The base and height are scaled by a factor of 3. What is the are of the resulting triangle.

Lera25 [3.4K]

The base and height scaled to some factor, simply means,
they're blown up by that much, or multiplied by that much,

in this case is 3, so.. the area would be 1/2 bh, now,
with 3b and 3h, what would it be?

$\bf \begin{cases}
A=\cfrac{1}{2}bh
\\\\
\textit{now, scaling "b" and "h" by 3}
\\\\
A=\cfrac{1}{2}\cdot 3b\cdot 3h\to \cfrac{1}{2}\cdot 9bh
\\\\
A=\cfrac{9}{2}bh\to 9\left(\cfrac{1}{2}bh \right)\\
--------------\\
9\left(\cfrac{1}{2}bh \right)\textit{ is really 9 times }\cfrac{1}{2}bh
\\\\
\textit{whatever the value of }\cfrac{1}{2}bh \textit{may be}
\end{cases}$

-------------------------------------------------------------------------

$\bf A=\cfrac{1}{2}bh\qquad 
\begin{cases}
b=2\\
h=3
\end{cases}\implies A=\cfrac{1}{2}\cdot 2\cdot 3\to 3
\\\\\\
\textit{now, let us scale "b" and "h" by 3}
\\\\
A=\cfrac{1}{2}\cdot 3b\cdot 3h\qquad 
\begin{cases}
b=2\\
h=3
\end{cases}\implies A=\cfrac{1}{2}\cdot (3\cdot 2)\cdot (3\cdot 3)
\\\\\\
A=\cfrac{1}{2}\cdot 6\cdot 9\to 3\cdot 9\to 27$

3 0

4 years ago

Before we use an applet to simulate the selection of random samples from this population, let’s make sure we are clear about who

Sauron [17]

Answer:

D) college students

The college students are best describes the population

Step-by-step explanation:

Explanation:-

Introduction:-

The outcome of a statistical experiment may be recorded either as a numerical value or as a descriptive representation.

Example:-

when a pair of dice are tossed and the sum of the numbers on the faces is the outcome of interest, we record a numerical value.

If the students of a certain school are given blood tests and the type of blood is of interest, we record a numerical value.

In particular study, the number of possible observations may be small, large but finite or infinite.

Example :- 1

In the classification of blood types we can only have as many observations as there are students in the school.

Therefore the results are finite number of observations.

Example :- 2

If we could toss a pair of dice indefinitely and record the sums occur, we would obtain an infinite set of values .

Population:-

The total of observations which we are concerned , whether this number is finite or infinite , this is called the population

The number of observations in the population is defined to be the size of the population.

Example :- If there are 600 students in the school that we classified according to blood group, we say that the population of size is 600.

Sample:- A sample is subset of a population

Therefore in given data

The college students are best describes the population

Female college students , part -time college students , and female part-time college students are samples it will come from population

7 0

3 years ago