brand A 7.79. 8 cent brand B 6.83 7 cent
Step-by-step explanation:
better buy brand B you get twice much and they are 1 cent cheaper
187÷24=7.79 /287÷42=6.83
Answer:
Step-by-step explanation:
Scientific notation is a way of expressing numbers that are too big or too small to be conveniently written in decimal form. It is commonly used by scientists, mathematicians and engineers, in part ... mode on scientific calculators) differs from normalized scientific notation in that the exponent n is restricted to multiples of 3.
4 miles represent one inch on the map.
This is because since they are 8 miles apart, and 2 inches in the map, and you want to find out how many miles per inch. You divide 8 by 2 because you want to divide how many miles by how many inches so that you can get 2 parts. That's how you get four.
Now that you cut 8 miles into two parts, you have halves, and half of eight is 4. And 1 inch represents that half since 1 + 1 equals 2 and 4 miles represents each of the two parts since 4+4 equals 8.
Answer:
Step-by-step explanation:
Let the ratios be 2x and 7x respectively.
Now,
2x + 7x = 18
= 9x = 18
= x = 18/9
= x = 2
Hence, 2x = 2*2 = 4
And, 7x = 7*2 = 14
