40t = 60(t-1)
distribute the right side
40t = 60t-60
subtract 60t from each side
-20t =-60
divide both sides by -20
t = -60 / -20 = 3
3 hours
Answer:
32 cm²
Step-by-step explanation:
6*4+ 1/2*4*4= 32 cm²
This is unit rate question
get unit rate by 252/6 = 42 so its $42 per unit bag
so 8 is 8 times $42 = $336
Answer:
incorrect
Step-by-step explanation:
this is incorrect because i solved it and i didn't got that answer
hope this helps:)
Pls mark brainlist
Answer:
Measure of smallest angle will be 27 degrees.
Step-by-step explanation:
We are told that a triangular playground has angles with measures in the ratio 8:3:9 and we are asked to find out measure of smallest angle.
Since we know by the angle sum property that angles in a triangle add up to 180 degrees.
We can set an equation from our given ratio as:
![8x+3x+9x=180^{o}](https://tex.z-dn.net/?f=8x%2B3x%2B9x%3D180%5E%7Bo%7D)
![20x=180](https://tex.z-dn.net/?f=20x%3D180)
![x=\frac{180}{20}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B180%7D%7B20%7D)
![x=9](https://tex.z-dn.net/?f=x%3D9)
Now we will find measure of our smallest angle by multiplying 3 by 9 as 3x will be smallest angle of our triangle.
![3*9=27](https://tex.z-dn.net/?f=3%2A9%3D27)
Therefore, measure of the smallest angle will be 27 degrees.