Answer: 22
Step-by-step explanation:
Starting floor = x
Number of floors traveled = 4
Direction of travel = downward
Final destination = 18
Using the equation above, Taylor's original starting point or where she go is ;
x - 4 = 18
x = 18 + 4
x = 22
Therefore , Taylor originally entered into the elevator on the 22nd floor.
Answer:
<u>x<6/7</u>
Step-by-step explanation:
7x/3 < 2
7x < 6
<u>x < 6/7</u>
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<h3><u>
If you need to ask any questions, please let me know.</u></h3>
X= cost per pizza
y= cost per soda
1ST VISIT TO RESTAURANT
x + 2y= $15.95
2ND VISIT TO RESTAURANT
3x + 5y= $45.90
STEP 1
multiply equation from 1st visit by -3. Will be able to solve by elimination method in step 2.
-3(x + 2y)= -3(15.95)
multiply -3 by each term
(-3 * x) + (-3 * 2y)= (-3 * 15.95)
-3x - 6y= -47.85
STEP 2
add 2nd visit equation to new 1st
visit equation in step 1.
3x + 5y= 45.90
-3x - 6y= -47.85
x term will cancel out; solve for y
-y= -1.95
divide both sides by -1
y= $1.95 per soda
STEP 3
substitute y value in either original equation to solve for x
x + 2y= $15.95
x + (2 * 1.95)= 15.95
multiple in parentheses
x + 3.90= 15.95
subtract 3.90 from both sides
x= $12.05 per pizza
CHECK
3x + 5y= $45.90
3(12.05) + 5(1.95)= 45.90
36.15 + 9.75= 45.90
45.90= 45.90
ANSWER: Each pizza costs $12.05 and each soda costs $1.95.
Hope this helps! :)
D. He was born on January 20th
If he was born on January 20th, he would be the oldest in his school classes. Right when the new year starts, his birthday comes up.
2(8 4/5)+2(22/25)
2(44/5)+2(22/25)
2(220/25)+2(22/25)
(440/25)+(44/25)
484/25=P