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sattari [20]
2 years ago
7

What is the solution set for 5x−5=15 , given the replacement set {0, 1, 2, 3, 4} ?

Mathematics
2 answers:
Setler79 [48]2 years ago
6 0
Answer is <span>A.x=4

</span><span>5x−5=15
5(4) - 5 = 15
20 - 5 = 15
15 = 15</span>
Paraphin [41]2 years ago
6 0

Answer:The answer must be A.X=4

Step-by-step explanation:

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Ellen saved $2000 and she spent 10% of it to buy a bike. Kim saved 8% more than that of Ellen's left savings. If Lisa saved 60%
enyata [817]

Answer: Lis saved $1166.4 .

Step-by-step explanation:

Given , Ellen saved $2000 and she spent 10% of it to buy a bike.

Then, Ellen's left saving = saved amount - 10% of  (saved amount)

= $2000 - 0.10 x $2000 <em>[We convert perecntage to decimal by diving it by 100]</em>

= $2000 - $200

= $1800

So, Ellen's left saving= $1800

Also, Kim saved 8% more than that of Ellen's left savings.

Kim's Saving = Ellen's left saving + 8% of (Ellen's left saving)

= $1800  + (0.08) x ($1800) <em>[We convert perecntage to decimal by diving it by 100]</em>

= $1800 +  $144

i.e. Kim's Saving= $1944

If Lisa saved 60% as much as Kim, then Lisa's saving  = 60% of (Kim's Saving)

= (0.60) x ($1944) <em>[We convert perecntage to decimal by diving it by 100]</em>

i.e. Lisa's saving = $1166.4

4 0
2 years ago
What is the value of 7m - 3n when m = 3 and n = 2?<br><br> A. 5<br> B. 15<br> C. 24<br> D. 36
Bezzdna [24]
Well just plug those two numbers into the equation: 7(3) - 3(2) Which equals 15 so B) 15
5 0
3 years ago
Read 2 more answers
5x-4y=19<br> x+2y=8<br> solve the simaltaneous equation
STatiana [176]

Answer:

( 5, 3/2 )

x = 5

y = 3/2

Step-by-step explanation:

5x - 4y = 19

x + 2y = 8

-------------------

2(x + 2y = 8) = 2x + 4y = 16

----------------------

5x - 4y = 19

2x + 4y = 16

7x = 35

÷7    ÷7

x = 5

-----------------------

x + 2y = 8

5 + 2y = 8

-5          -5

2y = 3

÷2   ÷2

y = ( 3/2 )

I hope this helps!

8 0
2 years ago
A credit card company charges 22% interest fee on any charges not paid at the end of the month.. If the bill totals $450 for thi
34kurt

Answer:

B

Step-by-step explanation:

Because

4 0
2 years ago
What is the minimum number of degrees that an equilateral triangle can be rotated before it carries onto itself?
mash [69]
Since the triangle has equal sides it will carry onto it self at 120, since it can rotate 360 grades only and it has 3 sides so it will rotate in one third of 360 so 120

i hope i helped you
7 0
3 years ago
Read 2 more answers
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