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juin [17]
3 years ago
9

Is y=19 a solution to the equation 2y=38

Mathematics
1 answer:
labwork [276]3 years ago
4 0
Yes. just multiply 2x19= 38
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Ryan bought a new computer for $2,100. The value of the computer decreases by 50% each year. When will the
noname [10]

Answer:

After 2.80 years the price drops to 300 $

Step-by-step explanation:

Ryan bought a new computer for $2,100.

Price of computer = 2100 $

The value of the computer decreases by 50% each year.

Let p(n) be the price of computer after n years.

\texttt{Price of computer after 1 year =}2100-\frac{50}{100}\times 2100=0.50^1\times 2100\$\\\\\texttt{Price of computer after 2 years =}0.50^2\times 2100\$\\\\\texttt{Price of computer after 3 years =}0.50^3\times 2100\$\\\\\texttt{Price of computer after n years =}0.50^n\times 2100\$

Now we need to find n when price is 300 $.

              0.50ⁿ x 2100 = 300

                 0.50ⁿ = 0.143

                 n log (0.5) = log 0.143

                  n x -0.301 = -0.845

                  n = 2.80

After 2.80 years the price drops to 300 $

8 0
3 years ago
Ann had 48 fliers to post around town. Last week, she posted 2/3 of them. This week, she posted 3/8 of the remaining fliers. How
IrinaK [193]

Answer:

Ann had 48 fliers to post around town

Last week, she posted 2/3 of them

48 \times  \frac{2}{3}  = 32 \\

Therefore, she should posted 32 fliers

This week, she posted 3/8 of the remaining fliers

48 \times  \frac{3}{8}  = 18 \\

Therefore, she should posted 18 fliers

Total fliers she should post are (32+18)=50 fliers

She still did not post (50-48)= <u>2 fliers</u>

<h3><em><u>2 fliers </u></em>is the right answer.</h3>
4 0
3 years ago
The math club is doing a fundraiser to raise money to attend a math competition. The club was told by their advisor to raise $20
Llana [10]
For the answer tot he question above, let the number of t-shirts are represented by 't'
number of sweaters are represented by 's'

cost of 1t=10 and cost of 1s=20 so
10t+20s=2000 or (factor out the 10 if you want to simplify)
10(t+2s)=10(200)
divide both sides by 2
t+2s=200
7 0
3 years ago
Essay Question Please Help Running out of Time
Yuki888 [10]
<span>First set: 7, 24, 25.

Square 7, 24 and 25.

Add together the squares of 7 and 24.

Compare this sum to the square of 25. </span>
4 0
3 years ago
Write an equation of the line below.
sasho [114]
Here it is y=3/2x-2
3 0
3 years ago
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