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earnstyle [38]
3 years ago
14

PLZ HELP ITS DUE IN 28 MINUTES

Mathematics
1 answer:
Ilya [14]3 years ago
4 0

Answer:

I think y and z = 45

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To increase him an amount by 70% what’s in the multiplier would you use
Sveta_85 [38]

You would multiply the amount by 1.70 for example increasing £50 by 70% would be £85

4 0
3 years ago
At the moment a hot iron rod is plunged into freezing water, the difference between the rod's and the water's temperatures is 10
Papessa [141]

Answer:

D(t)=100(0.4)^t

Step-by-step explanation:

The temp is 100 at time t = 0

After 1 sec, the temp difference would be:

100-(\frac{100-60}{100})

After 2 sec, the temp difference would be:

100-(\frac{100-60}{100})^2

Similarly for 3 seconds, 4 seconds etc.

We notice that the parenthesis part is 40% of it, so we can also write:

100(40%)^t,

where

t is the time

40% can be written as 40/100  = 0.4

SO, the function is:

d(t)=100(0.4)^t

0 0
3 years ago
Read 2 more answers
|-5c+5|=40 solve for c
GrogVix [38]

Answer:

C=9 or c=-7

Step-by-step explanation:

|-5c+5|=40

-5c+5=-40 or - 5c+5=40

-5c=-40-5. - 5c=40-5

-5c=-45. - 5c=35

C=9. C=-7

5 0
3 years ago
Read 2 more answers
Find the slope of the line through each pair of points<br> (-10,17) , (-8,-1)
svet-max [94.6K]
Slope = (y2 - y1)/(x2 - x1) = (-1 - 17)/(-8 - (-10)) = -18/(-8 + 10) = -18/2 = -9
4 0
3 years ago
(2m - 5m^3 ) - (5m + 3m^3- 7m^4 ) + (8 - 3m^3- 5m^4+ 4m)
Tresset [83]

Answer:

2m^4 - 11m³ + m + 8

Step-by-step explanation:

(2m - 5m³) - (5m + 3m³ - 7m^4) + (8 - 3m³ - 5m^4 + 4m)

2m - 5m³ - 5m - 3m³ + 7m^4 + 8 - 3m³ - 5m^4 + 4m

7m^4 - 5m^4 - 5m³ - 3m³ - 3m³ + 2m - 5m + 4m + 8

2m^4 - 11m³ + m + 8

6 0
3 years ago
Read 2 more answers
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