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Virty [35]
2 years ago
8

10x−5y=15 HELP in the next 10 min will get brain thing

Mathematics
2 answers:
uysha [10]2 years ago
7 0

Answer:

X= 3/2 + y/2

Y= 2x-3

Step-by-step explanation:

ʕっ•ᴥ•ʔっ Brainliest

victus00 [196]2 years ago
5 0

Answer:

y=2x-3

Step-by-step explanation:

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Which situation could this graph represent?
dusya [7]
The last choice: Running up a hill, then walking up a hill, turning around and running down the hill, then walking down the hill
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3 years ago
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Estimate the solution to the system of equations. You can use the interactive graph below to find the solution.−3x+3y=9 2x−7y=−1
hjlf

Answer:

  (x, y) = (-1.4, 1.6)

Step-by-step explanation:

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5 0
2 years ago
Solve each equation for the given variable a-2b=-10 for b
Ymorist [56]
A-2b=-10
add 2b on both sides
a=2b-10
add 10 to both sides
a+10=2b
divide both sides by 2
a/2+10/2=a/2+5=b
b=5+a/2
8 0
2 years ago
Denise is a professional swimmer who trains, in part, by running. she would like to estimate the average number of miles she run
SSSSS [86.1K]
Given:
n = 20, sample size
xbar = 17.5, sample mean
s = 3.8, sample standard deiation
99% confidence interval

The degrees of freedom is 
df = n-1 = 19

We do not know the population standard deviation, so we should determine t* that corresponds to df = 19.
From a one-tailed distribution, 99% CI means using a p-value of 0.005.
Obtain
t* = 2.8609.

The 99% confidence interval is
xbar +/- t*(s/√n)

t*(s/√n) = 2.8609*(3.8/√20) = 2.4309
The 99% confidence interval is
(17.5 - 2.4309, 17.5 + 2.4309) = (15.069, 19.931)

Answer: The 99% confidence interval is (15.07, 19.93)
4 0
3 years ago
What is the decimal multiplier to decrease by 3.4%?
olga nikolaevna [1]

Answer:

3.4%

=3.4/100

=0.034

Now,

1-0.034

0.966

0.966 is the multiplier

Step-by-step explanation:

8 0
2 years ago
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