Answer:
0
Step-by-step explanation:
→ First find inverse cosine 1/2
60°
→ Now multiply this answer by 3 because then if you substitute it in you get 0.5
∝ = 180°
→ Now find sine of 180°
0
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To find the amount he spent on bags of mulch you must take the cost of the shovel away from the total, giving the equation:
46.16-14.75=3.49x
To covert this to whole numbers, multiply by 100
4616-1475=349x
3141=349x
x=9
Answer:
x=-20
Step-by-step explanation:
1. Expand 3(x+8) : 3x+24
2.Expand -3(7-1/4x): -21*3/4x
3. 3x+24= -21*3/4x
4.<em>Subtract 24 from both sides</em>
3x+24-24= -21*3/4x-24
5.3x= 3/4x-45
6.<em>Subtract 3/4 from both sides</em>
3x-3/4= 3/4x-45-3/4
7.9/4x=-45
8<em>.Multiply both sides by 4</em>
9/4x*4=-45*4
9.9x=-180
10.<em>Divide both sides by 9</em>
9x/9=-180/9
11. x=-20
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Answer:
(a)6.82mph
(b)22 ft/sec
Step-by-step explanation:
Eric's Speed = 10 ft/sec
The Ferry's Speed = 15 miles per hour
<u>Conversion Unit</u>
- 1 mile = 5280 feet
- 1 hour = 3600 seconds
<u>Guide</u>
- When converting from a smaller unit to a larger unit we divide
- When converting from a larger unit to a smaller unit we multiply
(a)To convert Eric's Speed 10 ft/sec to miles per hour
(b)To convert the Ferry's Speed 15 mph to ft/sec
