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garik1379 [7]
3 years ago
7

Solve for x: 0.4x+3.8=1.6x+1.2-0.6x please help me!

Mathematics
1 answer:
olga_2 [115]3 years ago
3 0
I got x = 4.3 (I cant type it but there’s a line above 3 which means there’s no end)
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The table shows the discount and sales tax rate applied to a sheet set
vazorg [7]

Answer:

It would be B

Step-by-step explanation:

Hope this helps.

3 0
3 years ago
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The 1997 a value of an object was $5000. In 2012, it was worth $9500. The annual percent growth has been constant. What is the a
Daniel [21]
<h3>Annual percent growth is 4.37 %</h3>

<em><u>Solution:</u></em>

<em><u>The increasing function is given as:</u></em>

y = a(1+r)^t

Where,

y is future value

a is initial value

r is growth rate

t is number of years

From given,

a = 5000

y = 9500

t = 1997 to 2012 = 15 years

r = ?

<em><u>Substituting the values we get,</u></em>

9500 = 5000(1+r)^{15}\\\\(1+r)^{15} = 1.9\\\\Take\ \frac{1}{15}th\ power\ on\ both\ sides\\\\1+r = (1.9)^{\frac{1}{15}}\\\\1+r = 1.04367\\\\r = 1.04367 - 1\\\\r = 0.04367\\\\In\ percentage,\\\\r = 0.04367 \times 100 \%\\\\r = 4.367 \% \approx 4.37 \%

Thus annual percent growth is 4.37 %

8 0
3 years ago
Jeremy has a total of $250. If he spends 30% of his money, how much will he have left?
vagabundo [1.1K]
If you look at the picture, you set it up as part over whole is equal to percent over 100. then you just multiply across.

5 0
4 years ago
Me need a lot of help
miv72 [106K]
D.) 82.45
I hope you have a good day!
7 0
3 years ago
4x=6y= 6 and 2x+5y=11 by elimination show all work
Digiron [165]

Answer:

ans: x= 11/4 and y= 11/8

Step-by-step explanation:

4x=6y=6 mean

4x= 6 and 6y= 6 so, 6-6=0 i.e

4x - 6y = 0 say equation ....1

and given

2x + 5y = 11 say equation ....2

to solve by eliminating methods,

multiply equation....2 by 2 and subtract from ....1

i.e

4x - 6y =0

4x + 10y= 22

<u>(</u><u>-</u><u>)</u><u> </u><u> </u><u>(</u><u>-</u><u>)</u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u>(</u><u>-</u><u>)</u><u> </u><u> </u><u> </u>

0+ (-)16y = - 22

y = -22/-16

y = 11/ 8

to get , x put y in either equation 1 or 2

I.e x= 11/4

this value of x and y satisfy both equations

8 0
3 years ago
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