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mamaluj [8]
3 years ago
10

Formulate a system of equations to represent this situation, with f = the amount of money that Frank spent and r = the amount of

money that Rachel spent. Frank and Rachel spent a total of $15.75. If Rachel spends twice as much money as Frank, how much money did they each spend?
A)
B)
C)
D)
Mathematics
1 answer:
dem82 [27]3 years ago
4 0

Answer:

A

Step-by-step explanation:

I just did it

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The answer is C, but I don't understand why- can anyone tell me?
finlep [7]

Answer:

It's C because we are adding a number on the x but here we skip 5 so it's 6, and on y we add 4 up but since we skipped 5 we add 8 and we get 24. 6, 24. You may say "but SpiritBear, 17 plus eight is 25" and that is true, but if you notice the lowest dot actually starts on 5, not 4 making C right.

Hope this helped and wasn't too confusing

7 0
2 years ago
Seven different names were put into a hat. A name chosen 100 times. And the name Michael is chosen 9 times. What is experimental
iris [78.8K]

Answer:

Experimental probability = 9 / 100

Theoretical probability = 1/7

Step-by-step explanation:

The experimental probability of an event is written as :

P = number of times event occur / total number of trials

Experimental probability is based on the outcome of an experiment that has taken place.

Theoretical probability is based on expected outcome of an event.

P = number of expected or required outcomes / total possible outcomes

Experimental probability of choosing the name Michael is :

Number of times Michael is chosen / number of trials

Experimental probability = 9 / 100 = 0.09

Theoretical probability of choosing michael:

Number of names in hat = 7

Number of names called Michael in hat = required outcome = 1

P = 1 / 7

If the number of names in hat was different from 7, then the theoretical probability will change.

Also, if the number of times a name was chosen was different from 100, then number of trials will also change and hence, the experimental probability.

4 0
3 years ago
A tree cast a shadow 21 meters long
Delicious77 [7]

Step-by-step explanation:

I do not understand .____.

5 0
2 years ago
A regular polyhedron whose six faces are congruent squares
valentinak56 [21]

Answer:

True

Step-by-step explanation:

5 0
3 years ago
What is the area of the kitchen floor in this floor plan?
Illusion [34]
The answer is A=lw
A=(5)(7)
A= 35 ^meters

6 0
3 years ago
Read 2 more answers
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