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antiseptic1488 [7]
3 years ago
6

The cost to a store for a box of cereal is $2.50. The store is selling the box of cereal for $3.50. What is the percent of marku

p?
Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
8 0

Answer: 40%

Step-by-step explanation:

Firdavs [7]3 years ago
5 0
I believe that it is 1.4 .
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Find the area of an equilateral triangle (regular 3-gon) with the given measurement. 6-inch radius A = sq. in.
katovenus [111]
\bf \textit{area of an equilateral triangle}\\\\
A=\cfrac{s^2\sqrt{3}}{4}\qquad 
\begin{cases}
s=length~of\\
\qquad a~side\\
-------\\
s=6
\end{cases}\implies A=\cfrac{6^2\sqrt{3}}{4}\implies A=\cfrac{36\sqrt{3}}{4}
\\\\\\
A=9\sqrt{3}
8 0
3 years ago
One week, seventy-two percent of the animals that cam to a veterinary hospital were dogs. If there were 230 animals total, how m
pentagon [3]

Answer:

165.6

Step-by-step explanation:

165.6 is 72% of 230  

3 0
3 years ago
Find the equation of the line that passes through the point of intersection of x + 2y = 9 and 4x -2y = -4 and the point of inter
Rudik [331]

Answer:

y=-6x+10

Step-by-step explanation:

The point of intersection of

x+2y=9...eqn1


and


4x-2y=-4...eqn2

is the solution of the two equations.


We add equation (1) and equation(2) to get,

x+4x+2y-2y=9+-4


\Rightarrow 5x=5


\Rightarrow x=1

We put x=1 into equation (1) to get,

1+2y=9

\Rightarrow 2y=9-1

\Rightarrow 2y=8

\Rightarrow y=4


Therefore the line passes through the point, (1,4).


The line also passes through the point of intersection of

3x-4y=14...eqn(3)

and

3x+7y=-8...eqn(4)

We subtract equation (3) from equation (4) to obtain,

3x-3x+7y--4y=-8-14


\Rightarrow 11y=-22

\Rightarrow y=-2


We substitute this value into equation (4) to get,

3x+7(-2)=-8


3x-14=-8


3x=-8+14


3x=6

x=2

The line also passes through

(2,-2)



The slope of the line is

slope=\frac{4--2}{1-2} =\frac{6}{-1}=-6


The equation of the line is

y+2=-6(x-2)

y+2=-6x+12


y=-6x+10 is the required equation





4 0
3 years ago
Three points are collinear.
il63 [147K]
If they are in the same line yes. If they aren't then its considered non-collinear.
3 0
3 years ago
Read 2 more answers
Belvedere climbs a 25-meter tower to ride a straight water slide. After
ahrayia [7]

Answer:

28.7

Step-by-step explanation:

a^2 + b^2 = c^2

25^2 + 14^2 = 821

Square root of 821 is 28.7.

3 0
2 years ago
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