Let cost of 1 box of red pen = x
Let cost of 1 box of black pen = y
Gaga bought 5 red box and her sister 4 black box then total cost is given by
5x+4y
Given that total cost was $44
so equation will be 5x+4y=44...(i)
After exchange
Gaga= 4 red box + 1 Black box
Sister = 1 red box + 3 Black box
then cost for Gaga = 4x+1y
cost for sister = 1x+3y
Given that cost for both after exchange is same so we get
4x+1y = 1x+3y
or 4x-1x = 3y-1y
or 3x = 2y
or 3x/2=y ...(ii)
plug (ii) into (i)
5x+4y=44
5x+4(3x/2)=44
5x+12x/2=44
5x+6x=44
11x=44
x=4
Now plug value of x into (ii)
y=3x/2=3*4/2=12/2=6
Hence cost of 1 box of red pen = $4
And cost of 1 box of black pen = $6
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If you want to get solution without solving both equations then just graph both equations and find the intersection point.
You will see that graph intersect at (4,6) which gives x=4, y=6
Answer:
Part A:
When the temperature was cool the more longboards got rented. Most of the longboards got rented when it was 10C out.
Part B:
The line would fit at the coordinates: (5,0) (15.5) (24,10) (30,13) (35,15) (45,20) (55,25) (60,27)
The answer is 82.4 because when u divide you get 82.4
And that becomes 82.40
Answer:
Step-by-step explanation:
As the two pools, Family pool and Dog pool, are similar, their interior angles are equal and their corresponding sides are in the same proportion:
LMNO ~ PQRS
so LM/PQ = MN/QR = NO/RS = OL/SP
substituting in the given values
4/2 = 6/c = a/5 = 7/b
c = 6/2 = 3
a = 5*2 = 10
b = 7/2 = 3.5Answer:
Step-by-step explanation:
As the two pools, Family pool and Dog pool, are similar, their interior angles are equal and their corresponding sides are in the same proportion:
LMNO ~ PQRS
so LM/PQ = MN/QR = NO/RS = OL/SP
substituting in the given values
4/2 = 6/c = a/5 = 7/b
c = 6/2 = 3
a = 5*2 = 10
b = 7/2 = 3.5
Hi There
Question:A pure substance that contains more than one atom is called a?
Answer:Element Because (A pure substance that is composed of one kind of atom is an element. as it would not be an element it would be a compound. element is composed of one kind of atom not several as a compound is)
<u><em>Brainliest would be appriciated</em></u>
