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Tju [1.3M]
3 years ago
11

HELP, QUICK!! How many pencils does Achmed have if Gloria has twice as many as Achmed, Peng has three times as many as Achmed, a

nd the total number of pencils owned by all three students is 42?
Mathematics
1 answer:
Ugo [173]3 years ago
8 0

Answer:

Achmed has 7 pencils.

Step-by-step explanation:

Let Achmed have x pencils, then:

Gloria has 2x pencils and  Peng has 3x pencils so we have the equation:

x + 2x + 3x  = 42

6x = 42

x = 7.

Achmed has 7 pencils.

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How long (in years) would $900 have to be invested at 11.3%, compounded continuously, to earn $500 interest? (Round your answer
KatRina [158]

Answer:

6.13 years

Step-by-step explanation:

The computation of the number of years is shown below:

As we know that

Amount = Principal ×e^{rate,time period}

($900 +  $500)  = $700 × e^{11.3%, time period}

$1,400 = $700 × e^{11.3%, time period}

ln(2) = 0.113× time period

0.693147181 ÷ 11.3 = time period

= 6.13 years

8 0
3 years ago
Explain step by step =) Harry rides his bike 25 3/8 miles. Karen rides her bike 25 2/5 miles. Who rides farther?
Alex
To answer this question we need to use subtraction. 
we need to make the denominators the same. 
In order to make them the same we need to find the least common multiple, of 8 and 5. 
The least common multiple(the smallest shared value of the two numbers) is 40. 

Next we divide our old denominator 5 by 40, which gives us 8, we multiply 8 by the numerator 2, which gives us 16. So now we have 16/20. We have to do the same to the other side. 8÷40 = 5.  5 x 3 = 15. Now we have 15/20.

Now we have a brand new equation, 16/40 - 15/40. The answer is 1/40. 
In a fraction the answer is 1/40, so Karen rides her bike further. 

In decimal form the answer is 0.025. 

I hope this helps!

4 0
3 years ago
I’m confused on this one
leva [86]
P = 19 + 19 + 10 + 10
P = 58

answer
P = 58 cm
6 0
3 years ago
Read 2 more answers
Math. need help please slope-intercept form​
vagabundo [1.1K]
Y = 3x
How to solve:
y2 - y1/x2-x1
27-15/9-5
= 12/4 = 3
Looks like you got it already :)
7 0
4 years ago
Find the domain and range, and compare it with the function y=1/x
siniylev [52]
F(x) = 1/x and g(x) = -10/x

Domain:  same:  all real numbers other than x=0.
Range:  strictly speaking, these 2 functions have the same range:  all real numbers other than y=0.  But the graph of g(x) = -10/x looks stretched vertically when compared with that of f(x) = 1/x.
8 0
4 years ago
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