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Anika [276]
3 years ago
7

I will mark u the brainyest, I promise!! plz help!

Mathematics
2 answers:
Ket [755]3 years ago
7 0
9 cakes and you would have 1/4 a cup of nuts left over. :)
Nina [5.8K]3 years ago
4 0

Answer:

10 with 1/4 left over

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Eli will photograph a wedding for a flat fee of $1000 or for an hourly rate of $120. For what lengths of time would the hourly r
Dennis_Churaev [7]
How long would it take $120/hr to add up to $1000?

Divide $1000 by $120/hr:  

 $1000
----------- = 8 1/3 hours, or 8 hours 20 minutes.
$120/hr
8 0
3 years ago
In a small town, the use of coal (W in tons/per
zimovet [89]

Answer:

i)W = 2500 / T

ii)  W = 500 Tons

iii) grad W(10°) = - 25î

iv) The formulation is not practical

Step-by-step explanation:

i)  Write an equation describing the use of coal

As use of coal is inversely proportional to the average monthly temperature

if  W is use of coal in tons/per month then

W(t)  =   k / T              where k is a constant of proportionality and T is the average temperature in degrees. We have to determine k from given conditions

k  =  ??   we know that when   T  =  25°    W = 100 tons  the by subtitution

W = k/T           100  =  k /25       k  =  2500 Tons*degree

Then final equation is:

W = 2500 / T

ii) Find the amount of coal when T = 5 degrees

W = 2500 / 5

W = 500 Tons

iii)

The inverse proportionality implies that W will decrease as T increase.

The vector gradient of W function is:

grad W  = DW(t)/dt î  

grad W  = - 2500/T² î

Wich agrees with the fact that W is decreasing.

And when T = 100°

grad W(10°) =  - 2500/ 100 î      ⇒  grad W(10°) = - 25î

iv) When T =  0  The quantity of coal tends to infinite and the previous formulation is not practical

5 0
3 years ago
What is the area of triangle below?
kenny6666 [7]

Answer:

14

Step By Step Explanation:

7×4/2

=7×2

=14

Have a nice day! :)

-Vana

7 0
3 years ago
George uses mangos (m) and pineapples. (p) to make one jar of fruit salsa. Mangos sell at the
Illusion [34]

Answer:

N(4.49m + 5p )

Step-by-step explanation:

N  is the number of jars of fruit salad

Example 3 fruit salads:

3(4.49m + 5p )

8 0
3 years ago
Write root of 2 correct to (a) 6 d.p​
Solnce55 [7]

Answer:

1.414214

Step-by-step explanation:

Value is 1.41421<u>35</u>623730950488016887242097...

Since 7th digit is a 5, the 3 gets rounded to a 4 at the end.

6 0
3 years ago
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