40/50=0.8
0.8*100=80%
Hope this helps!
Answer:
yes, i think it is correct :)
Step-by-step explanation:
To form an equation with the given information, we use the formula :
y = mx + b, m being the slope and b being the y-intercept.
Since it is given that the slope is -9/7, we substitute m with -9/7.
y = -9/7x + b
To find b, we will substitute the known coordinates into the equation :
At point (-7 , 4), x = -7, y = 4
4 = -9/7 (-7) + b
4 = 9 + b
b = 4 - 9
b = -5
Now we know that b = -5, we will substitute b = -5 into the equation that we found earlier, y = -9/7 x + b :
y = - 9/7x - 5
To make it more readable, we can multiply the equation by 7:
7y = -9x - 5
7y + 9x + 5 = 0
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Answer : 7y + 9x + 5 = 0
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4 x+9=13 X=4 subtract 9 from the 9 and 13 and 13-9 =4 so x=4
Answer:
Same speed.
Step-by-step explanation:
divide Distance by speed
25.5/3=8.5mph
34/4=8.5mph
