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2 years ago

#7: Five containers, each weighing the same amount, were placed on a 30-pound

Mathematics

1 answer:

Ede4ka [16]2 years ago

6 0

Answer:

Option (B)

Step-by-step explanation:

Let the weight of one container = x pounds

Therefore, weight of 5 containers = 5x pounds

Weight of the platform = 30 pounds

Total weight of the platform and containers = (5x + 30) pounds

If the maximum weight that can be lifted by the cable = 780 pounds

Inequality representing this situation will be,

(5x + 30) < 780

5x < 780 - 30

5x < 750

x < 150

Therefore, Option (B) is the answer.

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Question 14 options: The personnel department of a large corporation wants to estimate the family dental expenses of its employe

never [62]

Answer:

The sample mean is of 266.5 dollars.

Step-by-step explanation:

Sample mean:

The sample mean is given by the sum of all values in the sample divided by the number of values.

In this question:

12 values.

The sum is:

115 + 370 + 250 + 93 + 540 + 225 + 177 + 425 + 318 + 182 + 275 + 228 = 3198

The sample mean is:

$S = \frac{3198}{12} = 266.5$

The sample mean is of 266.5 dollars.

3 0

2 years ago

Write the equation of a line that goes through (1.-7) and has a slope of -5.

jekas [21]

Line equation is
y - y1 = m * (x - x1)
y - (-7) = (-5) * ( x - 1)
y + 7 = -5x + 5
y + 5x + 2 = 0

5 0

2 years ago

Simplify the expressing by combining like terms <br>1 + 3x - 8x + 7

tamaranim1 [39]

$\huge\text{Hey there!}$

$\large\textsf{1 + 3x - 8x + 7}$

$\large\text{COMBINE the LIKE TERMS }$

$\large\textsf{ (3x - 8x) + (1 + 7)}$

$\large\textsf{3x - 8x = \bf -5x}$

$\large\textsf{1 + 7 = \bf 8}$

$\large\textsf{= -5x + 8}$

$\boxed{\boxed{\large\text{Answer: \huge \bf -5x + 8}}}\huge\checkmark$

$\text{Good luck on your assignment and enjoy your day!}$

~ $\frak{Amphitrite1040:)}$

7 0

2 years ago

I got 6/7 correct on Khan, and I really need the 100. Please help. <3

Sav [38]

PLS HELP ASAP I DONT HAVE TIME FOR THIS, IT ALSO DETECTS IF ITS RIGHT IR WRONG PLS HELP ASAP I DONT HAVE TIME FOR THIS, IT ALSO DETECTS IF ITS RIGHT IR WRONG

7 0

2 years ago

kaheart [24]

If x is the acceptable weight, the difference between the acceptable weight x, and 430 cannot exceed 20.

We express this as |x-430|≤20, in absolute value notation.

we have the following 2 cases

x can be smaller than 430, in this case: 430-x≤20, that is 410≤x

x can be greater than 430, in this case: x-430≤20, that is x≤450

Solution: 410≤x≤450

4 0

3 years ago