Answer:
logx a + logx b
Step-by-step explanation:
Answer:
If you're rounding to the nearest 100, then 949 is the answer
Step-by-step explanation:
Answer:
1) y=18
2)y=-0.18
Step-by-step explanation:
1) y-15=3. Add 15 on both sides.
y=18
2)-2.1+5y=-3. Add 2.1 on both sides
5y=-0.9. Divide 5 on both sides
y=-0.18
Answer:
See below
Step-by-step explanation:
<em>Compatible numbers</em> are numbers that are easy to use in mental arithmetic.
Martin gave away ⅖ of 7 lb of grapes, so the amount he gave away was
⅖ × 7 lb
⅖ is close to ²/₄ (½), and it is easy to take half of something mentally.
Half of 7 is about 3, so Martin gave away about 3 lb of grapes (the exact answer is 2.8 lb).
