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kiruha [24]
3 years ago
7

John read half of the time that Tom read. Tom read that half of the time Sasha read. Sasha read twise as long as Mike. If Mike r

ead 6 hours, how long did John read?
Mathematics
2 answers:
deff fn [24]3 years ago
5 0

Answer:

John read for 3 hours

Step-by-step explanation:

j = 0.5t; t = 0.5s; s = 2m; m = 6

s=2(6), s=12; t=0.5(12), t=6; j=0.5(6), j=3

vfiekz [6]3 years ago
3 0

Answer:

John read for 3 hours

Step-by-step explanation:

Mike read 6 hours. Sasha doubled the reading time so 3*2=12. Tom read half of that time, so it is the same as Mike which is 3. John read half of Tom's time, so 6 divided by 2 is 3.

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if the ratio of the volume of two cubes is 1 : 8 , then find the ratio of the total surface area of the two cubes​
vivado [14]

Answer:

V = L^3      where v is volume and L the length of one side

A = 6 * L^2    total area of cube with side L

A = 6 * V^2/3      area of cube expressed in V

A2 / A1 = (V2 / V1)^2/3       6 cancels

A2 / A1 = 8^2/3 = 4      ratio of areas

3 0
3 years ago
Indicate in standard form the equation of the line passing through the given point and having the given slope
Naddik [55]
ANSWER


The equation is

y - 5x + 20 = 0


EXPLANATION

Let the equation be
y = mx + c

where
m = 5
is the slope of the line.


We substitute this value to obtain,

y = 5x + c


Since the line passes through
(4,0)
we can use this point to determine the value of c.



We substitute this point to obtain,

0 = 5(4) + c


0 = 20 + c


c =  - 20


Our equation now becomes

y = 5x - 20


We can write this in standard form as


y - 5x + 20 = 0
6 0
3 years ago
TIME REMAINING
padilas [110]
The third option: uses visual representation of the logical...
7 0
3 years ago
Read 2 more answers
Help..idk how to do algabra. i didn't pay attention..
kotegsom [21]
Start with 3 one-by-one squares. This represents the '3' in 4t+3

Then draw 4 rectangles that are vertical or horizontal. Make sure the rectangle is longer than it is wide, or vice versa. The longer side is t units long (t is just a placeholder for a number). The shorter side is 1 unit long

The longer thin rectangles have an area of 1*t = t square units. Four of them represent t+t+t+t = 4*t = 4t
The small squares have an area of 1*1 = 1. Three of them represent 1+1+1 = 1*3 = 3

This is one possible way to draw it out. See the attached drawing. 

4 0
3 years ago
Neighborhood block: StartFraction 3 over 20 EndFraction miles. A rectangle has a width of w. Perimeter = 3 20 + w + 3 20 + w Bij
butalik [34]

Answer:

it is 1/20

Step-by-step explanation:

3 0
3 years ago
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