Answer:
A=60, B=80, and C=67
Step by step explanation:
B= 2a
C= a+27
With the information, you get the equation:
A+A+27+2A=187
Then, you have to simplify.
You then get 4a+27=187.
Now, you subtract 27 from both sides to get: 4a=60.
Divide both sides by 4 to get A= 60.
If A=60, 2A=80, so B=80. A+27=67, so C=67.
You check this by adding them up to see if they equal to 187, which in fact, they do.
A=60, B=80, and C=67.
Hope this helped!
Answer:
C
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
here (h, k) = (5, 2), thus
y = a(x - 5)² + 2
To find a substitute (4, - 3) into the equation
- 3 = a + 2 ⇒ a = - 3 - 2 = - 5
y = - 5(x - 5)² + 2 ← in vertex form
Expand (x - 5)² and distribute by - 5
y = - 5(x² - 10x + 25) + 2
= - 5x² + 50x - 125 + 2
= - 5x² + 50x - 123 ← in standard form
Answer:
1/61
Step-by-step explanation:
reciprocal just means you flip it. since 61 is a whole number. it would be 61/1 but you flip that over and its 1/61.
It will cost about $0.72 for three pair of shoes assuming shoe box is rectangular shape having 12 square inches of packing paper.
Step-by-step explanation:
- Assuming a shoe box rectangle in shape and the same size is required.
- Length of rectangle box assuming to be 4 inches.
- Width of rectangle box assuming to be 3 inches.
- as we know area of rectangle is Length * Breath(Width) .
- 12 square inches is the total packing paper required for each box.
- To cover cost of three pairs of shoes $0.02 per square inch.
- Each box would cost about 12 square inches * 0.02 pr square inches.
- 0.24 square inches of packing paper will be required.
- let three pairs of shoes be x
- Total pairs of shoes would be= (12 * 0.02)*x
- Answer would be for 3 pairs of shoes = 0.24*3 = 0.72 square inches.
remember, you can do anything to an equation as long as you do it to both sides
we can do a subsitution
y=x+6
y=-7x-10
since y=x+6, we can subsitute x+6 for y in the other equation
y=-7x-10
x+6=-7x-10
add 7x to both sides
8x+6=-10
minus 6 from both sides
8x=-16
divide both sides by 8
x=-16/8=-2
the valu eof x that satisfies both equations is x=-2
