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strojnjashka [21]
3 years ago
15

For every 15 seventh graders in band, there are 20 eighth graders. What is the ratio of eighth graders to seventh graders?

Mathematics
1 answer:
mamaluj [8]3 years ago
4 0

Answer:

The answer is 20:15, or 4:3 simplified

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The price for US postage stamps has increased over the years. Since 1975, the price has increased from $.13-$.37 in 2005 at a ra
madreJ [45]

Answer:

Linear Equation: P = 0.008T + 0.13

Price of stamp in 2015 = $0.45

Step-by-step explanation:

From 1975 to 2005 [30 years], the price increased from 0.13 to 0.37 [0.24].

This means the rate of change (slope) is 0.24/30 = 0.008

This means Price changed (increased) by $0.008 per year.

Slope = 0.008

The y-intercept (P) is at the starting point which is at T = 1975, the price was 0.13. Hence y-intercept is 0.13

The equation of a line is given as

P = mT + b

Where m is the slope and b is the y-intercept

Now, we can write the linear model equation as:

P = 0.008T + 0.13

To find the price of stamp in 2015, we see that this is 40 years later after 1975. So we plug in 40 into T in the equation found above:

P = 0.008(40) + 0.13

P = $0.45

8 0
4 years ago
Together, Steve and tom sold 89 raffle tickets. Steve sold 14 more than twice as many raffle tickets as Tom. How many raffle tic
nika2105 [10]
This problem cant be solved the answer has a decimal which would work

the equation would be 2x+14=89 you would divided 89 by 2 and get 44.5 and minus 14 from that which would be 30.5 and that just doesn't make any sense tom would've sold 30.5 tickets and steve would have sold 44.5 but you cant sell half a ticket this makes no sense to me sorry I couldn't help butif you want I can email my middle school math teacher and ask him
4 0
3 years ago
Amaya is reviewing her checking account statement from the bank. Her starting balance and transactions are listed.
shepuryov [24]

Answer:

376.81

Step-by-step explanation: 376.81

5 0
3 years ago
Find the value of 8/15×2/13 Although these numbers aren't quite as nice as the ones from the example, the procedure is the same,
xz_007 [3.2K]

Answer:

\frac{16}{195}

Step-by-step explanation:

To obtain the result of a fractions multiplication we need to multiply both numerators and the divide by the multiplication of the denomitators. In general, given a,b,c,d real numbers with b and d not zero, we have that

\frac{a}{b}*\frac{c}{d}=\frac{a*c}{b*d}

Substituting a,b,c and d for 8,15,2 and 13 we obtain that

\frac{8}{15}* \frac{2}{13} =\frac{16}{195}

3 0
4 years ago
Show 204 in two different way in hundred tens and ones
Klio2033 [76]
2 hundreds
0 tens
4 ones
4 0
3 years ago
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