Answer:
n+7=21 -7
n=14
Step-by-step explanation:
prove me wrong
54+9= 63 m = distance and time=35 sec hence, speed= 63/35=9/5=1.8 m/s
time taken to reach water surface= distance/speed=54/1.8=30 sec
3(x-1)2+3(y+3)=243
3(x-1)2+3y+9=243
3(x2-1)+3y+9=243
3x2-3+3y+9=243
32+3y-3+9=243
32+3y=243+3-9
3y(y+1)=237
Answer:
106
Step-by-step explanation:
Given:
Thirteen fewer than three times his thinking number is 305.
Question asked:
What number is Tomás thinking ?
Solution:
Let Toma's thinking number be
As 13 fewer than 3 times his thinking number is 305.
The equation will be:
Adding both side by 13
Dividing both side by 3
Thus, Tomàs was thinking of a number is 106
Answer: x
+
15
y
Step-by-step explanation: