Answer:
400
Step-by-step explanation:
254 + 115 = 369 then round to the nearest 10 which is 370, because anything 5 or up is rounded up and anything below 5 rounds down, then round the 3 which would turn into a 4, then replace the 7 with a zero, then the answer would be 400
370
245 + 115 equals 369.
When estimating, you go to the nearest number, such as estimating 8 into 10.
So, with this information, we will go to the nearest 10, which is 370.
I hope this helps! <3
6.7
Make a proportion (similar triangles):
(15) / (10+x) = 6/x
15x = 60 + 6x
9x = 60
x = 6.7
