Angela bought 150 pins and 28 needles for sewing. The pins each weigh 0.00035 , and the needles each weigh 0.00043. What is the total weight of the pins and needles Angela bought?
put in scientific notarion
To calculate the total weight of the pins and needles Angela bought, we first need to determine the weight of the pins and the weight of the needles separately.
Weight of 150 pins:
150 pins * 0.00035 g/pin = 0.0525 g
Weight of 28 needles:
28 needles * 0.00043 g/needle = 0.01204 g
Total weight of pins and needles:
0.0525 g (pins) + 0.01204 g (needles) = 0.06454 g
Therefore, the total weight of the pins and needles Angela bought is 6.454 x 10^-2 g.