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Rom4ik [11]
3 years ago
6

Lead metal can be extracted from a mineral called galena, which contains 86.6% lead by mass. A particular ore contains 68.5% gal

ena by mass. If the lead can be extracted with 92.5 % efficiency, what mass of ore is required to make a lead sphere with a
6.50cm radius?
Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
6 0

Answer:

ds hj bfsj gjhbyuabfdbsybfy

Step-by-step explanation:

sdbhabjbgfybsbfsad gfhysabfubdfr

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Question 7 (2 points)
Soloha48 [4]

Answer:

590

Step-by-step explanation:

2360/4=590, so there are 590 straws / 1 bag

8 0
2 years ago
286 mi in 5 1/2 hours as a unit rate
MA_775_DIABLO [31]
286 ÷ 5 1/2 hours = 286 ÷ 5.5 = 52 final answer
8 0
3 years ago
AJ purchased a new TV for $1200. The regular price of the TV was $1500.what percent did AJ save buying it on sale ?
svet-max [94.6K]

A. 20%


Work: 1500 x .20 = 300

1500 - 300 = 1200


Hope this helps!

4 0
3 years ago
The density d kg/m3 of a cube of mass m kilograms and side length x meters is given by the formula:  What is the value of d if
bearhunter [10]

Answer:

5000kg/m3

Step-by-step explanation:

Its easy to get the answer of a question from the unit.

So, it will be mass over metre cube.

Therefore, m=40kg x= (0. 2)^3 =0. 008m

40/0. 008 = 5000kg/m^3

6 0
3 years ago
How do you complete this task?
Assoli18 [71]

Answer:

-3/2

Step-by-step explanation:

y=mx +b

where m is the slope and b is the y intercept

we just need to rewrite 3x+2y+18=0 to look like that

We need to get y by itself

3x+18= -2y

we need y to be positive and to have no number in front of it (no coeficcent)

y= -3/2x-9

the slope is therefore -3/2

3 0
2 years ago
Read 2 more answers
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