Answer:
Average speed
= 5 5/6 mph , or
= 5.83 mph (to 2 decimals)
Step-by-step explanation:
Average speed is total distance divided by the total time it takes to cover the given distance.
Since uphill = 5 mph, and downhill = 7 mph, we know the average speed is between 5 and 7 mph.
Let
x = distance uphill, and also distance downhill.
Total distance = 2x miles
Total time = x/5 + x/7 hours = 12x/35 hours
Average speed
= total distance/total time
= 2x / (12x/35) mph
= 70x / 12x
= 5 5/6 mph
= 5.83 mph (to 2 decimals)
The answer for your question is (1/2) and alternate form is 0.5 and 2^-1
Apply the distributive property<span>.
</span><span>7x−5−(3x)−1(−2)</span><span>
</span>
<span>Simplify.
</span><span>7x−5−3x−1(−2)
</span>Multiply <span>−1</span><span> by </span><span>−2</span><span> to get </span><span>2.</span><span>
</span><span>7x−5−3x+2</span><span>
</span>
Add <span>7x</span><span> and </span><span>−3x</span><span> to get </span><span><span>4x</span>.
</span><span>4x−5+2</span><span>
</span>
Add <span>−5</span><span> and </span>2<span> to get </span><span><span>−3</span>.
</span><span>4x−3
</span><span>4x−3</span>
To help Carmen find the total after 3 years
We'll have to use the annual compound interest formula: A = P(1 + r)ⁿ
A = Final balance (?)
P = Principal balance (6000)
r = Rate (0.028)
n = years (3)
A = 6000(1 + 0.028)³
A = 6000(1.028)³
A = 6000(1.086373952)
A = 6518.243712
Round that to the nearest cent, and we get $<u>6,518.24 </u>as the answer.
Its 1/5.
Parallel lines have the same slope.
Hope this helps.
