Answer:
-4y - 7
Step-by-step explanation:
Combine like terms. Note that there is one term with a variable (y), and two constant terms. Combine the constant terms. Note that one positive and one negative sign will result in a negative sign:
-4 + (-3) = -4 - 3 = -7
-4y - 7 is your answer.
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Hey there!
3 + 67 = 70,
so your answer will be:
x = 3
Hope this helps!
Have a great day (:
The speed of the plane will be 875km/h and the speed of the wind will be 125km/h.
<h3>How to calculate the speed?</h3>
It should be noted that the speed is calculated as:
= Distance/Time
Based on the information, the DC10 airplane travels 3000 km with a tailwind in 3 hr. It travels 3000 km with a headwind in 4 hr.
Therefore, (v + w) = 3000/3
v + w = 1000 .... I
(v - w) = 3000/4
v - w = 750 .... ii
We'll then add both equations together. Therefore, the speed of the plane will be 875km/h and the speed of the wind will be 125km/h.
Learn more about speed on:
brainly.com/question/13740894
#SPJ1
Answer:
Step-by-step explanation:
i'm sure the answer is C
Answer:
70
Step-by-step explanation:
I suppose its 70 because... 7 + 3 = 10
and 70 + 30 = 100...so the SUM is 100...yet minus 30 would be 70...so
70 is the bigger number...
please let me know if this was right...
hope I helped!
:)