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Apply the Keep Flip Change rule here
1/4 has been kept the same
The sign has been changed
The other fraction needs to be flipped
Thus, z = -2/7
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#1 4/8 + 5/8 + 6/8 = 15/8 = 1 7/8
The correct answer is 1 7/8.
#2 The correct answer is YES.
Answer:
-6, -4, -3, 0
Step-by-step explanation:
I just did this question and got it right.
Scientific notation is a way to write compactly numbers with lots of digits, either because they're very large (like 2393490000000000000000000), or very small (like 0.0000000000356).
We use powers of ten to describe all those leading/trailing zeros, so that we con concentrate on the significat digits alone.
In your case, the "important" part of the number is composed by the digits 6 and 1, all the other digits are zero. But how many zeroes? Well, let's do the computation.
Every power of 10, is written as one zero followed by n zeroes, so we have
Multiplying a number by means to shift the decimal point to the right and/or add trailing zeroes n times. So, we have to repeat this process six times. We shift the decimal point to the right one position, and then add the five remaning zeroes. The result is thus
Answer:
(a)81 yards (b)27 seconds
Step-by-step explanation:
Let Shontal distance to the point where he overtakes Diego=x
Since Diego is given a head start of 27 yards, his distance to the point where he is overtaken by Shontal=x-27
Diego hops at a rate of 2 yards per second.
Shontal hops 3 yards per second.
Now, Time Taken=Distance ÷ Average Speed
- For Diego, Time Taken = (x-27) ÷ 2
- For Shontal, Time taken = x ÷ 3
At the point where Shontal overtakes Diego, their time taken are equal.
Therefore:
Cross multiplying
3(x-27)=2x
3x-81=2x
3x-2x=81
x=81 yards
(a) Therefore, Shontal will have to hop 81 yards
(b)Recall, for Shontal,
Time taken = x ÷ 3 = 81 ÷ 3 =27 seconds
It will take Shontal 27 seconds to overtake Diego.