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Slav-nsk [51]
3 years ago
11

Arwen uses a dropper that produces drops that have a volume of 1/8 mL to fill a 30 mL test tube how many drops does it take to f

ill the test tube
Mathematics
1 answer:
borishaifa [10]3 years ago
3 0
240 drops. you take 8x1/8=1ml so you have 8 8ths times 30 to give you 240 drops for 30ml test tube

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A 4​-ft vertical post casts a 12​-in shadow at the same time a nearby cell phone tower casts a 122​-ft shadow. How tall is the c
zepelin [54]

Answer:

the cell phone tower is 488 ft

Step-by-step explanation:


change 12 in = 1ft

4ft                            x ft

------------------- =   ----------------

1ft  shadow           122 ft shadow


using cross products

4 * 122 = 1 * x

488 = x

3 0
3 years ago
An elevator at a department store must carry fewer than 17 people at a time. An elevator operator is present in the elevator at
natulia [17]
I'd say it's x + 1 < 17.
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8 0
3 years ago
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LenaWriter [7]
Sweater: 1/3 = 0,333
Jeans: 3/5 = 0,6

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Now, you just have to use the rule of three
0,067 = 36
0,333 = x

(0,333•36)/0,067= 179,1$
The sweater costed 179,1$

3 0
3 years ago
How do you solve an equation with 2 variables on one side and and the answer on the other
Irina-Kira [14]

Answer: combine like terms dude

Step-by-step explanation:

8 0
3 years ago
Compound Inequalities <br> Solve the following compound inequality <br><br> 12 &lt; 2x-4/3 &lt; 16
Lana71 [14]
The answer is 20/3, 26/3.
4 0
3 years ago
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