Arc length = radius * central angle (radians)
60 degrees = PI/3 radians
arc length = 15 * PI/3
arc length = 5 * PI
- The result of Ben's estimation strategy is 7 grams.
- The exact amount of nickel is 8.05 grams.
<u>Step-by-step explanation:</u>
First off all, if we have 1 gram of a substance that has 0.51 gram of copper and 0.26 gram of zinc, the remainder will be:
1 gram - ( 0.51 + 0.26 ) = 1 gram - 0.77 = 0.23 grams.
Hence we have 0.23 gram of nickel.
But the estimation of Ben implies that 1 grams of the substance has 0.2 gram of nickel.
Multiplying the grams of the substance by the gram of nickel to obtain the grams of nickel in 35 grams of the substances.
35 0.2 = 7 grams.
Hence 35 grams of the substance has 7 grams of nickel.
But we know that in 1 gram of the substance are not 0.2 grams of nickel but 0.23 as calculated. So by multiplying the grams of the substance by 0.23 and thereby finding the actual grams of nickel in it:
35 0.23 = 8.05 grams.
Hence 35 grams of the substance has 8.05 grams of nickel.
i did it on calculator and i got: 10.959003km
5.081+2.986= 5.08100299km. (i added that with 5978km.) i hope this helps. (7>7)
Answer:The multiples of 24 are an infinite series of numbers that result from 24 being multiplied by any whole number. The first five multiples of 24 are 24, 48, 72, 96 and 120. These numbers come as a result of 24 being multiplied by 1, 2, 3, 4 and 5.
Step-by-step explanation:
Answer:
5/0.30=6
Step-by-step explanation:
So, you have five dollars, each pencil is thirty cents, divide five by point three zero to find how many pencils he can buy. Since you cannot buy a fraction or part of a pencil you only give the whole number part of your answer, 16