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3 years ago

ILL GIVE BRAINLIST ON WHOEVER GETS IT RIGHT

Mathematics

1 answer:

Rina8888 [55]3 years ago

6 0

Answer:

Step-by-step explanation:

3x - 2y = 22

2x + 9y = -37

Solving this simultaneously or by elimination, x = 4

Y = -5

[4, -5]

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The weights of a small box of healthy oats are normally distributed with a mean of 8.9 oz and a standard deviation of 0.1 oz. Fi

s2008m [1.1K]

Answer:

) Compute the sample mean x and the sample standard deviation s.

Do NOT use a computer. You may only use +, –, ×, ÷, and on a calculator.

Show ALL work.

143.1

15.5 16.2 16.1 15.8 15.6 16.0 15.8 15.9 16.2 = = = ∑ + + + + + + + +

= 15.9.

x x 2 x x − x ( ) 2

x − x

15.5

16.2

16.1

15.8

15.6

16.0

15.8

15.9

16.2

240.25

262.44

259.21

249.64

243.36

256.00

249.64

252.81

262.44

15.5

16.2

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Change 34.55% to a decimal

Jet001 [13]

.3455 is the correct answer.

4 0

3 years ago

Read 2 more answers

PLEASE HELPP!! WILL GIVE BRAINLIEST + 25 POINTS!!

enyata [817]

Answer:

x = -9/4

Step-by-step explanation:

−2(x + 1/4) + 1 = 5

Subtract 2 from both sides.

−2(x + 1/4) = 4

Divide both sides by -2.

x + 1/4 = -2

Subtract 1/4 from both sides.

x = -2 1/4

x = -9/4

4 0

3 years ago

Tony has 24 stamps in his collection this is 1/3 times the number of Jordan has how many stamps does Jordan have

Cerrena [4.2K]

You have to find 1/3 of 24, so it is 8

7 0

3 years ago

Caitlin has $5 and $10 bills that are worth $675. She has twice as many $10 bills as $5 bills. How many of each type of bill doe

Lerok [7]

Caitlin has 27 $5 bills and 54 $10 bills.

Step-by-step explanation:

Given,

Worth of $5 and $10 bills = $675

Let,

Number of $5 bills = x

Number of $10 bills = y

According to given statement;

5x+10y=675 Eqn 1

She has twice as many $10 bills as $5 bills.

y=2x Eqn 2

Putting value of y from Eqn 2 in Eqn 1

$5x+10(2x)=675\\5x+20x=675\\25x=675$

Dividing both sides by 25

$\frac{25x}{25}=\frac{675}{25}\\x=27$

Putting x=27 in Eqn 2

$y=2(27)\\y=54$

Caitlin has 27 $5 bills and 54 $10 bills.

Keywords: linear equation, substitution method

Learn more about substitution method at:

#LearnwithBrainly

7 0

3 years ago