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erma4kov [3.2K]
3 years ago
11

Suddenly, the number of problems the mathletes have to solve increases by 60%! To keep on track, the mathletes try to go faster

but are only able to increase their speed by 25%. By what percent must the number of mathletes on the team increase so they solve all the problems in time, as scheduled?
Mathematics
2 answers:
stiv31 [10]3 years ago
6 0

Answer:

28%

Step-by-step explanation:

Lets say the fraction of speed and problem solved is 100/100

the number of problems solved increases by 60%

so now it is 160/100, also the speed increases by 25%

so now we do 160/125=1.28

finally we do 1.28-1 = 28%

Therefore the answer is 28%.

hope this helps

sesenic [268]3 years ago
4 0

Answer:

28%

Step-by-step explanation:

I did it and it was right

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\huge\boxed{n=\log_35}

Step-by-step explanation:

3^n=5\Rightarrow\log_33^n=\log_35\qquad\text{use}\ \log_ab^n=n\log_ab\\\\n\log_33=\log_35\qquad\text{use}\ \log_aa=1\\\\\boxed{n=\log_35}

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Please solve 3 N ↓<br> ⬛<br> 9 N ↑
Mars2501 [29]

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69 because 3 is half of 6

Step-by-step explanation:

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3 years ago
Answer these questions Please show work
Yuliya22 [10]

Answer:

1.  m= -2 1/3

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Step-by-step explanation:

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3 years ago
Mario started with the expression 2(x+ y) + 5(x+7y), applied several steps and simplified the
Artemon [7]

Answer:

8x + 32y

Step-by-step explanation:

Given

2(x+ y) + 5(x+7y)

Required

Expand and identify the steps

2(x+ y) + 5(x+7y)

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Apply associative property

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3 0
3 years ago
(a) Find an approximation to the integral 2 (x2 − 4x) dx 0 using a Riemann sum with right endpoints and n = 8. R8 =
denpristay [2]

Answer:

Step-by-step explanation:

\int\limits^2_0 {(x^2-4x)} \, dx       n=8     f(x) = x² - 4x

convert [0,2] into 8 subintervals

width of each interval is

\delta x =\frac{2-0}{8}=0.25

All subintervals are:

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Let, x_i be the right end point of each interval i=1,..8

x_1=0.25, x_2=0.5, x_3=0.75, x_4=1, x_5=1.25, x_6=1.5, x_7=1.75, x_8=2

Reiman sum is

R_8=\delta x[f(x_1)+f(x_2)+...f(8)]\\\\0.25[f(0.25)+f(0.5)+...+f(2)]\\\\0.25\times[-23.25]\\=-5.8125

8 0
3 years ago
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