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3 years ago

Round each mixed number to the nearest whole number. Then, estimate the product.

2 answers:

7 0

8 9/10 = 8.9

9 is greater than 5, so round up

8.9 becomes 9

1 4/5 = 1.8

8 is greater than 5, so round up

1.8 becomes 2

9 x 2 = 18

18 should be your answer

hope this helps

Agata [3.3K]3 years ago

3 0

Hi there!

First, let's round 8 9/10:

Since 9/10 is about 1, 8 9/10 is about 9

Now, let's round 1 4/5:

Since 4/5 is about 1 as well, 1 4/5 is about 2

9 * 2 = 18

So, the approximate answer is 18.

Hope this helps!

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2. The width of a rectangle is 5 units less than the length. If the area is 150 square units, then find the dimensions of the re

xz_007 [3.2K]

Answer:

The length = x = 15 units

The width = x-5 = 10 units

Step-by-step explanation:

Let 'x' be the length of a rectangle

As the width of a rectangle is 5 units less than the length.

width of rectangle will be = w = x - 5 units

Area = 150 square units

Using the formula

Area = length × width

$150=\left(x\right)\left(x-5\right)$

$150=x^2-5x$

$x^2-5x=150$

Subtract 50 from both sides

$x^2-5x-150=150-150$

$x^2-5x-150=0$

$\left(x+10\right)\left(x-15\right)=0$

$ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)$

$x+10=0\quad \mathrm{or}\quad \:x-15=0$

$x=-10,\:x=15$

As length can not be negative. so

x = 15 units

Hence,

The length = x = 15 units

The width = x-5 = 15-5 = 10 units

5 0

2 years ago

Because of variability in the manufacturing process, the actual yielding point of a sample of mild steel subjected to increasing

Alex73 [517]

Answer:

modify tge production

Step-by-step explanation:

7 0

3 years ago

What is the length of LN

Leto [7]

The answer to your problem is 20 inches.

5 0

3 years ago

Read 2 more answers

Suppose that the hourly wages of fast food workers are normally distributed with an unknown mean and standard deviation. The wag

Nutka1998 [239]

Answer: 1.303639

Step-by-step explanation:

The t-score for a level of confidence $(1-\alpha)$ is given by :_

$t_{(df,\alpha/2)}$ , where df is the degree of freedom and $\alpha$ is the significance level.

Given : Level of significance : $1-\alpha:0.80$

Then , significance level : $\alpha: 1-0.80=0.20$

Sample size : $n=40$

Then , the degree of freedom for t-distribution: $df=n-1=40-1=39$

Using the normal t-distribution table, we have

$t_{(df,\alpha/2)}=t_{39,0.10}=1.303639$

Thus, the t-score should be used to find the 80% confidence interval for the population mean =1.303639

8 0

2 years ago

City

xxMikexx [17]

Answer:

The correct option is (B) 69.7%.

Step-by-step explanation:

The table provided represents the probabilities of a positive response to two government programs from citizens in eight cities.

The probabilities mentioned in the table are conditional probabilities, i.e. the probability of a positive response for program 1, given that the individual is from city <em>x</em>.

The probability a positive response for program 1 from an individual from Houston is 69.7%.

Then the conditional probability of a positive response for program 1, given that the individual is from Houston is 69.7%.

Thus, the correct option is (B).

7 0

2 years ago