<em><u>Answer:</u></em>
Equation A) y = is Graph E
Equation B) y = is Graph A
Equation C) y = is Graph B
Equation D) y = is Graph D
Answer:
Andy gets 7 questions wrong.
Step-by-step explanation:
Let A, B, C and D be the number of questions answered wrong by Andy, Beth, Charlie, and Daniel, respectively.
Andy and Beth together get the same number of questions wrong as Charlie and Daniel together:
Andy and Daniel together get four more questions wrong than Beth and Charlie do together:
Charlie gets five questions wrong:
Solving the linear system:
Andy gets 7 questions wrong.
Answer:
100 cm² or 314.16 cm²
Step-by-step explanation:
First, you should find the radius of the circle, which is half the diameter.
r = 10 cm
The area of the circle = r²
So you just need to plug in and multiply everything.
A = 10²
= 100 cm²
Usually, you can leave it in terms of pi, but otherwise
= 314.16 cm²
Answer:
that makes the two of us
Step-by-step explanation:
STEP 1:
convert meters to centimeters
100 cm= 1 meter
= 100 cm/m * 2.5 m
= 250 cm
STEP 2:
x= length of first shelf
2x+18= length of second shelf
x-12= length of third shelf
x+4= length of fourth shelf
since the whole board has to be used, add lengths of all shelves and set it equal to the whole length of the board (250 cm).
x + (2x+18) + (x-12) + (x+4)= 250 cm
combine like terms
5x + 10= 250
subtract both sides by 10
5x= 240
divide both sides by 5
x= 48
STEP 3:
find length of second shelf
= 2x + 18
= 2(48) + 18
= 114 cm
CHECK:
x + (2x+18) + (x-12) + (x+4)= 250
48 + (2(48)+18) + (48-12) + (48+4)= 250
48 + (96+18) + 36 + 52= 250
48 + 114 + 36 + 52= 250
250= 250
ANSWER: Shelf two is 114 cm.
Hope this helps! :)