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Scilla [17]
3 years ago
14

4) The sum of two numbers is 21. The smaller number is three more than half the larger number. What are the two numbers?

Mathematics
1 answer:
butalik [34]3 years ago
3 0

Answer:

4) smaller number is 9, larger number is 12

13) 38.45=5m+8.5

m=5.99

Step-by-step explanation:

x+y=21      the sum of two numbers is 21

x-3=.5y  the smaller number is 3 more than half the larger number

multiply both sides by 2 and you get 2x-6=y

plug that equation into the first equation and you get x+2x-6=21

simplifying you get 3x-6=21 add 6 to  both sides and you get 3x=27

x=9 so the smaller number is 9 then you plug that back into the first equation and get y=12


let m be the cost of 1 movie and c be the cost of the cd

38.45=5m+c

38.45=5m+8.5 this is the equation you use

subtract 8.5 from both sides and you get 29.95=5m

divide both sides by 5

5.99=m the answer

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Pls help with mathh!!!
sergeinik [125]

Answer: x<5

Step-by-step explanation:

If the circle was dark then it would be x is less than or equal to 5. But here, since the circle is open, that means that 5 is not a possible solution for x. The answer is x<5. Hope this helps!

6 0
3 years ago
You want to distribute 7 candies to 4 kids. If every kid must receive at least one candy, in how many ways can you do this?
puteri [66]

Answer:

15

Step-by-step explanation:

lets begin to set up this question. i personally find questions like these easiest when i begin to set up ideas to help my brain process it better, for example:

person a

person b

person c

person d

we know that each (person) must receive at least 1 candy. we also know that we have 7 candies. therefore if we want do draw this out :

person a- 1

person b- 1

person c- 1

person d -1

notice that we now have given away 4 of the 7 candies. now we have 3 candies left. we can simply:

person a- 2

person b-2

person c-2

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but, keep in mind that there are still many more ways that we can distribute the candies to other kids. the question we are asked is how may ways can we do this. since i have already illustrated the question, you can either learn how to put this into an equation, or experiment how many variations there are. the answer, either way is 15.

4 0
3 years ago
Please help thank you so much!!!!!
mafiozo [28]

Answer:

Csc(60)

sin(330)

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Step-by-step explanation:

The cosen típic is not mant for use With this type of problem.

3 0
3 years ago
How to write 7 3/10 in decimal form
tensa zangetsu [6.8K]

Answer:

7.30

Step-by-step explanation:

You take 7 and then do 3/10 which is .30

You put them together and get 7.30

Hoped that helped!

5 0
3 years ago
Read 2 more answers
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Finger [1]

Answer

From the origin, you would move left four and up 5

5 0
3 years ago
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