<span>c. –17.9+(–4.2)
</span><span><span>The General rule for adding and subtracting numbers </span><span>
1. Two integers with the same signs
Once 2 integers has the same sign, then just add the numbers.
For example</span>
<span>1. 1+1 = 2 </span>
<span>2. 2 + 5 = 7 </span><span>
2. Two integers with different signs
<span>When 2 integers has different sign, then find the difference
For example
1. 1-1 =0</span></span>
<span>2. 2 – 5 = -3 </span><span>
3. Two integers that vary in sign
<span>When 2 integers vary in sign, then it will depend who which number carries the largest value
For example</span></span> <span><span>
1. </span>-3 + 2 = -1</span>
<span><span>2. </span>2 – 1 = 1</span><span> </span></span>
Answer:
Both of your answers are correct.
Step-by-step explanation:
Expand the equations by distributing the number outside of the parentheses. After doing the expansion, your equations are both correct.
Answer:
5/8, 1/2, 1/6
Step-by-step explanation:
Answer:
x=3
Step-by-step explanation:
25x+57+x=45x
26x+57=45x
57=19x
x=57/19
x=3
2.5euros/1kg×?U.S$/?euro×1kg/?lb
and, 1 kg=2.20462 lb
2.5/1 * $1.256/.7965 E * 1KG/2.204 =3.14/178= 1.76.
