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2 years ago

Solve 2 2/3 x 3 3/5 using an area model of 4 squares.

Mathematics

1 answer:

Scorpion4ik [409]2 years ago

5 0

Answer:

9 3/5 is the answer it's in photo above how to

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Find the sum:(11x+3)+(x+-5)

VikaD [51]

Answer:

12−2

Step-by-step explanation:

Simplify,

(11+3)+(−5)

11+3+−5

Subtract,

11+3+−5

11−2+

Combine like terms,

11−2+

12−2

Since we can't go any further, the solution is,

12−2

6 0

2 years ago

Randomly selected students participated in an experiment to test their ability to determine when one minute (or sixty seconds)

zalisa [80]

Answer: $(57.41,\ 62.19)$

Step-by-step explanation:

Given : Sample size : $n=40$

Sample mean : $\overline{x}=59.8\text{ seconds}$

Standard deviation : $\sigma =9.2\text{ seconds}$

Significance level : $\alpha=1-0.9=0.1$

Critical value : $z_{\alpha/2}=1.645$

Formula to find the confidence interval for population mean :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=59.8\pm(1.645)\dfrac{9.2}{\sqrt{40}}\\\\\approx59.8\pm2.39\\\\=(59.8-2.39,\ 59.8+2.39)\\\\=(57.41,\ 62.19)$

Hence, a 90% confidence interval estimate of the population mean of all students = $(57.41,\ 62.19)$

6 0

2 years ago

What number needs to be added to 5 and 3 so that the ratio of the first number to the second

Mashcka [7]

Answer:

Step-by-step explanation:

Choose a variable to represent the number to be added to 5 and 3.

$\frac{5+x}{3+x}=\frac{4}{3}$

"Cross-multiply."

$3(5+x)=4(3+x)\\\\15+3x=12+4x\\\\15=12+x\\\\3=x$

Check: The ratio of 5+3 to 3 + 3 is 8:6, equal to the ratio 4:3.

5 0

2 years ago

Tyrell wants to buy bagels and cream cheese for his 16 coworkers at the office. He expects that each worker will eat 1 1/2 bagel

yulyashka [42]

Answer:

Is below.

Step-by-step explanation:

nuMBER OF BAGELS = 16 * 1 1/2 = 24.

Number of servings of cheese = 16*2 = 32

= 32/4 = 8 containers.

3 0

2 years ago

Margaret drank 1/6 of a 36oz. bottle of soda. She gives the

podryga [215]

Sorry man but I have no idea you could try google

4 0

2 years ago

Solve 2 2/3 x 3 3/5 using an area model of 4 squares.​

Solve 2 2/3 x 3 3/5 using an area model of 4 squares.