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Lelu [443]
3 years ago
8

Can someone please help me with these 4 questions?

Mathematics
1 answer:
Harman [31]3 years ago
7 0
16. Is 77=x
Sqrt 2x+15=13
169=2x+15
154=2x
77=x
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A video game system and several games are sold for $700. The cost of the games is three times as much as cost of the system. Fin
soldier1979 [14.2K]

Answer:

cost of system is $175 and cost of the games is $525

Step-by-step explanation:

Let us take the cost of the system to be X.The games cost 3 times as much as the system and are therefore given 3X. The total cost of the system and the games is $700.Therefore,we form the equation 3X+X=$700.Meaning that 4X=$700 and X is equal to $175.The cost of the system is X therefore it is $175 and the cost of the games is 3X and is therefore $525.

6 0
2 years ago
in a test consisting of 90 questions, Ama answered 75% of the first 40 questions correctly. If she had to get a score of 80% in
Shalnov [3]

Answer:

total question =90

she obtained 75% of first 40 questions

  1. No. of question she got correct in first 40 = 75% * 40 = 30

2. in order to get 80% out of 90,

the no. of questions got correct by Ama = 80% * 90 = 72

3. As she already got 30 c0rrect in first 40 questions, the number of question she needs correct for remaining 50 = (72-30) = 42

percentage = 42/50*100% = 84%

3 0
3 years ago
It is greater than 43 and less then 52 if you add the digits the sum is 8
Ksenya-84 [330]
44 is the answer 4+4=8
3 0
3 years ago
What is the missing reason in the proof?
Tresset [83]
A. segment addition
3 0
2 years ago
How many groups of sixty are in 244
finlep [7]
4 would be the answer
3 0
2 years ago
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