1. 3.0 mL * (1 L )/((1000 mL) = 0.003 L

2. 0.24 dag * (10 g)/(1 dag) * (1000 mg)/(1 g) = 2,400.0 mg

3. 1350.0 mm * (1 m)/(1000 mm) = 1.35 m

4. 20.0 kg * (1000 g)/(1 kg) = 20,000.0 g

5. 0.4 cL * (1 L)/(100 cL) * (1 hL)/(100 L) = 0.00004 hL

6. 310.0 m * (1 km)/(1000 m) = 0.31 km

5 0

4 years ago

A construction crew is lengthening a road. The crew is adding 6 miles to the road each week. The road originally measured 52 mil

PSYCHO15rus [73]

6x + 52 > 130

Subtract 52 from both sides:

6x > 78

Divide both sides by 6:

X > 78/6

X > 13

7 0

3 years ago

9(m - 3) + 3m = 7m + 43

frozen [14]

$\begin{gathered} 9(m-3)+3m=7m+43 \\ \text{Multiply the parenthesis by 9 and you have} \\ \\ (9\times m-9\times\lbrack-3\rbrack)+3m=7m+43 \\ \text{Next you have} \\ 9m-27+3m=7m+43 \\ \text{Note that the 9 multiplies the m to get 9m,} \\ \text{and the 9 also multiplies the negative 3 to arrive at negative 27.} \\ \text{After applying 9 to open the parenthesis, you now have } \\ 9m-27+3m=7m+43 \\ \text{You collect like terms. In this case all expressions that have m are like terms} \\ \text{The ones that does not have m are also like terms but, separate} \\ \text{Collect like terms with m on to the left hand side} \\ 9m+3m-7m=43+27 \\ \text{Note that whenever a positive number moves over across the sign of equality,} \\ it\text{ becomes a negative number and vice versa.} \\ \text{Hence 7m has moved and now becomes -7m} \\ \text{Also -27 has moved and now becomes +27} \\ 9m+3m-7m=43+27 \\ 5m=70 \\ \text{Divide both sides by 5 to eliminate it from the left side} \\ \text{and hence m would now stand alone} \\ \frac{5m}{5}=\frac{70}{5} \\ m=14 \end{gathered}$

5 0

2 years ago

What are two reasons a common measuring system is important

mixas84 [53]

1) You can understand and work with other people's results, you can cooperate with other people in production of goods and check their experiments to see if they are correct.

2) It reduces errors since many people work towards specifying it exactly.

8 0

4 years ago