Answer:
T = $12
S =$18
Step-by-step explanation:
This question would be solved using simultaneous equation
Let t = cost of t-shirt
s = price of sweatshirt
two equations can be derived from this question
12s + 8t = 312 eqn 1
8s + 13t = 300 eqn 2
Multiply eqn 1 by 8 and eqn 2 by 12 :
96s + 64t = 2496 eqn 3
96s + 156t = 3600 eqn 4
subtract eqn 3 from 4
92t =1104
t = 12
Substitute for t in eqn 1
12s + 8(12) = 312
12s + 96 = 312
12s = 216
s = 18
<span>ok
first things first. In all parallelograms, you now that opposite angles
are numerically equal to each other and that the sum off all four
angles must add up to 360.
Therefore based off the picture, angles B and D are equal to each other, and A and C are equal to each other.
(2x-10) = (y+20) B = D
y=2x-30
Now B = 2x -10 and D = 2x-30+20 = 2x-10
Now A = C
Since A = 2x+ 10, we can assume C = 2x + 10
Now we need to find the value of x
so our angle A, B, C, and D add up to 360 so the "master equation" is:
(2x - 10) + (2x - 30 + 20) + (2x + 10) + (2x + 10) = 360
2(2x -10) + 2(2x + 10) = 360
4x - 20 + 4x + 20 = 360
8x = 360
x = 45
Now that we know what x is, we can go back to the angles B and D
remember B = 2x - 10 and D = y + 20
and earlier we stated that y=2x-30
therefore y = 2(45) - 30
Y = 60
Now if you wanted to double check, all you have to do is plug in the x
and y values into the equations and add up all the angles together and
they should add up to 360.
I know I kinda went into too many details, but I'd rather explain it
into too much detail rather than too few details and shortcuts that you
wouldn't be able to follow and understand.
I hope this was helpful =D </span>
Not a hundred percent sure but this what I got
Answer:
-15
Step-by-step explanation:
-1-7*(2)=-1-14=-15
X^2+2x-24
Carry over the "^2" to the "2x"
So now it will be 2x^2-24
So 2 times 2 "2" times because of the "^2" (which means multiply)
So the problem will now be 2x^2-24
From there it will be 4x divided by 24
Your answer will be x=6✔️
