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dexar [7]
3 years ago
9

What is the best order-of-magnitude for 0.000006?

Mathematics
1 answer:
seraphim [82]3 years ago
7 0
So,

Optimally, we want a number between 1 and 10 multiplied by a power of ten.

If we move the decimal place 6 places to the right, we get 6.

So we want 10^{-6}.

The correct option is C.
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the local hardware store wants to increase their inventory. Last year 15 electric screwdrivers cost them 300.how much would 45 s
Harman [31]
One way of doing this is to write the equation of ratios (15 screwdrivers / 45 screwdrivers) = ($300 / x).    Solve this equation for x.  To do this, you might try multiplying both sides of this equation by x to eliminate fractions.

Another way is to obtain the unit cost of each screwdriver and then multiply the result by 45 screwdrivers.
7 0
2 years ago
A boat traveled 150 miles downstream (with the current) and back (against the current). The trip downstream took 10 hours. The t
Margarita [4]

Answer:

b= 10 miles/hr and c= 5 miles/hr

Step-by-step explanation:

Let it's downstream and upstream speed be d and u respectively

also speed of the boat be b and speed of stream be c.

as per question d = 150/10= 15 miles/hr

and, u= 150/30= 5 miles/hr

also we know d= b+c = 15.....i and u = b-c= 5....ii

solving i and ii we get b= 10 miles/hr and c= 5 miles/hr

3 0
2 years ago
Help please/////////////////////
Wewaii [24]

i dont understand the question

7 0
2 years ago
Question 1:
Dominik [7]
14+2x=62        (x=Pass cost)
-14        -14
(2x=48)/2
x=24

6.50+5.75+1.15x=18
12.25+1.15x=18
-12.25          -12.25
1.15x=5.75 divide both sides by 1.15
x=5

5 0
3 years ago
The width of a rectangle is 6 in. less than its length. The perimeter is 68 in.
erma4kov [3.2K]
2L + 2(L-6) = 68

2L + 2L -12 = 68

4L = 80

L = 20

The length is 20 in. and the width is 14 in.
8 0
3 years ago
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