Answer:
740
Step-by-step explanation:
370 miles in 0.5 hours
370/0.5 = 740 miles per hour
Answer:
48 minutes
Step-by-step explanation:
First, we divide 1.6 by 2 to see how much out of the hour we will walk. This equals 0.8. We have walked for 0.8 of an hour. An hour is 60 minutes. 60 minutes multiplied by 0.8 is 48. It takes 48 minutes to walk 1.6 miles at 2mph.
Since y = 5x-1, we can fill it into 3x + 3y = -3. First, let's look at relating to a simpler equation. Let's say that x + y = 9 and y = 3 + 5. Now, we can fill it in to get that x + (3 + 5) = 9. Now, we know that 3+5 is 8, so x + 8 = 9. Now, x = 1. Likewise, we can do the same. For 3x + 3y = -3, all we need to do is to switch the y in 3x + 3y = -3 with 5x - 1. So it would become 3x + 3(5x - 1) = -3. Now we distribute to get 3x + 15x - 3 = -3. Now add three to both sides to get 3x + 15x = 0. Now simplify to get 18x = 0. Now we know that x = 0. Now fill x into y = 5x - 1. So y = 5(0) - 1. Now we know that y = -1.
To check fill in the answer to 3x + 3y = -3.
3(0) + 3(-1) = -3
0 + (-3) = -3
0 - 3 = -3
-3 = -3
Now that our check is completed we now know that x is 0 and y is -1.
Hey there, Lets solve this problem together.
Our first step will be to g<span>ather like terms
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Simplify 5×−2k×k to −5×2k×k
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Simplify <span><span>5×2k×k</span></span><span> to </span><span><span>10<span>k^2
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