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Zarrin [17]
3 years ago
7

If g(x) = 2(x − 4), find the value of x if g(x) = 20

Mathematics
2 answers:
grin007 [14]3 years ago
6 0
2(x-4)=20
2x-8=20
2x=20-8
X=12/2
X=6
Natalka [10]3 years ago
4 0
Substitute for x.
g(20)= 2(20-4)
g(20)=32.
x=32.
~god bless you!
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7 0
3 years ago
What is the solution to this equation? <br> log_7 (5 + 11x) = 2
11111nata11111 [884]

Answer:

x = 4

Step-by-step explanation:

Using the rule of logarithms

log_{b} x = n , then x = b^{n}

Given

log_{7} (5 + 11x) = 2 , then

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5 0
2 years ago
What's the answer to: divide £48 in the ratio 7:5 (please show your working, much appreciated)
Brums [2.3K]
I can see you come from outside the USA. No insults intended!!
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Anyways, we have to put one side of the ratio and match it to 48. 
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Or even better...
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MAKE!!
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PROPORTION!!
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So... Let's say 7 is proportional to 48... so 7/5 = 48/x, where x is the number equivalent to ratio of 5.
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Cross multiply!!
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4 0
3 years ago
Charlie invests £1200 at 3.5% per annum compound interest.
lbvjy [14]

Answer:

<h2>£1,330.46</h2>

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r = rate (in %)

t = time (in years)

n = time used to compound the money

Given P =  £1200., r = 3.5%, t = 3years, n = 1 year(compounded annually)

A = 1200(1+0.035)^{3}\\ A = 1200(1.035)^{3}\\ A = 1200* 1.108717875\\A = 1,330.46

Value of Charlie's investment after 3 years is £1,330.46

6 0
3 years ago
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d1i1m1o1n [39]

Answer:

y=4x-8 hope this helps:)

6 0
3 years ago
Read 2 more answers
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