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Aleks [24]
2 years ago
6

Mindy and Troy combined ate 999 pieces of the wedding cake. Mindy ate 333 pieces of cake and Troy had 1/4 of the total cake. ​ W

rite an equation to determine how many pieces of cake (c) there were in total.
Mathematics
2 answers:
lubasha [3.4K]2 years ago
6 0

Answer:

Step-by-step explanation:

333+p/4=999

p/4=666

p=2664

gavmur [86]2 years ago
5 0

Answer:

Equation: 3 + 1/4c = 9

24 pieces of cake

Step-by-step explanation:

from khan :))))

pls brainliest im beggin you

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PLZ HELP WILL GIVE BRAINLIEST!!!!!!
Travka [436]
We should find the mean number of the tests. 
This would be done like: (23+24+25)/3  = 24

After that, you should find the percentage or fraction like this 24/50
Then use the fraction as an estimate like this:

(24/50) * 3250 = 1560

The correct answer is 1560.
5 0
3 years ago
Solve y=x2 +7 fоr x.<br> ОА. x = t /у +7<br> ОВ. x= y +7<br> Ос. x=y-7<br> OD. х = + y -7
elena55 [62]

Answer:

x = ± \sqrt{y-7}

Step-by-step explanation:

Given

y = x² + 7 ( subtract 7 from both sides )

y - 7 = x² ( take the square root of both sides, thus

x = ± \sqrt{y-7}

5 0
2 years ago
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mrs_skeptik [129]

The equation that can be used to find the number of wolves in the state on January 1 is w - 23 = 84

<h3>How to represent a situation with an equation?</h3>

A zoologist is recording the loss of wolves in her state. She notes the number of wolves, w, in the state on January 1. One year later, there were 84 wolves in the state, which is 23 fewer wolves than were in the state a year earlier.

The equation that can be used to find the number of wolves in the state on January 1 can be calculated as follows:

where

  • w = number of wolves in the state January 1.

Therefore, the equation to represent the situation is as follows:

w - 23 = 84

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5 0
1 year ago
An alternating current E(t)=120sin(12t) has been running through a simple circuit for a long time. The circuit has an inductance
Dvinal [7]

Answer:

14.488 amperes

Step-by-step explanation:

The amplitude I of the current is given by

\large I=\displaystyle\frac{E_m}{Z}

where

\large E_m = amplitude of the energy source E(t).

Z = Total impedance.

The amplitude of the energy source is 120, the maximum value of E(t)  

The total impedance is given by

\large Z=\sqrt{R^2+(X_L-X_C)^2}

where

<em> R= Resistance </em>

<em>L = Inductance </em>

<em>C = Capacitance </em>

<em>w = Angular frequency </em>

\large X_L=wL = inductive reactance

\large X_C=\displaystyle\frac{1}{wC} = capacitive reactance

As E(t) = 120sin(12t), the angular frequency w=12

So

\large X_L=12*0.37=4.44\\\\X_C=1/(12*7)=0.012

and

\large Z=\sqrt{7^2+(4.44-0.012)^2}=8.283

Finally

\large I=\displaystyle\frac{E_m}{Z}=\frac{120}{8.283}=14.488\;amperes

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