Answer:
Step-by-step explanation:
Hello,
1km=1000m, right?
so 7km = 7 * 1000 m = 7000m
thanks
Hey there!
“6 + r = 8”
• FIRST: FIRST THE EQUATION
r + 6 = 8
• SECOND: SUBTRACT by 6 on BOTH SIDES
r + 6 – 6 = 8 – 6
CANCEL out; 6 – 6 because that gives you 0
KEEP: 8 – 6 because that helps solve for your r-value
• THIRD: SOLVE FOR YOUR EQUATION
8 – 6 = r
• FOURTH: ANSWER THE QUESTION
8 – 6 = 2
FIFTH: ANSWER
r = 2 ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
The <em>correct answers</em> are:
5x²+70x+245 ≥ 1050; and
Yes.
Explanation:
Let x be the width of the tablet. Since the width of the TV is 7 inches more than the tablet, the width of the TV would be x+7.
The length of the TV is 5 times the width; this makes the length 5(x+7) = 5x+35.
The area of the TV would be given by
(x+7)(5x+35).
Since Andrew wants the area to be at least 1050, we set the expression greater than or equal to 1050:
(x+7)(5x+35) ≥ 1050
Multiplying this, we have:
x*5x+x*35+7*5x+7*35 ≥ 1050
5x²+35x+35x+245 ≥ 1050
Combining like terms,
5x²+70x+245 ≥ 1050
To see if 8 is a reasonable width for the tablet, we substitute 8 for x:
5(8²)+70(8)+245 ≥ 1050
5(64)+560+245 ≥ 1050
320+560+245 ≥ 1050
1125 ≥ 1050
Since this inequality is true, 8 is a reasonable width.
Find the value in Australian dollars for each exchange rate.
<span>1st exchange rate: </span>
<span>14000/6.21= $2254.43 </span>
<span>2nd exchange rate: </span>
<span>14000/6.37= $2197.80 </span>
<span>Find the difference between the two: </span>
<span>$2254.43 - $2197.80 = $56.63 </span>
Since the first value is greater than your second one Aggie lost money and your answer is <span>It decreases by $56.63.</span>
