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Dmitry_Shevchenko [17]

2 years ago

5

A commercial laundry charges $5.25 per load. You have $31.50. Write and solve an inequality to find the greatest number of loads

of laundry you can do.

1 answer:

dexar [7]2 years ago

4 0

Answer:

6

Step-by-step explanation: 31.50 devided by 5.25 = 6

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Pachacha [2.7K]

Answer:

over specific intervals. TO GRAPH PIECEWISE FUNCTIONS: 1. Create a ... function. 2. Plot correct points (if more are plotted than are required points are ... EX 6: During a snowstorm, a meteorologist tracks the amount of accumulating ... the first three hours of the storm, the snow fell at a constant rate of one inch per hour.

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2 years ago

The water works commission needs to know the mean household usage of water by the residents of a small town in gallons per day.

Alexeev081 [22]

Answer: 387

Step-by-step explanation:

Given : Standard deviation: $\sigma=2.3$

Margin of error : 0.15

Critical value for 80% confidence interval = 1.2816

Required minimum sample size : $n=(\dfrac{z_{\alpha/2}\cdot \sigma}{E})^2$

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4 0

2 years ago

Javier writes an integer on a piece of paper. The absolute value of his number is less than 4. Which is true of the possible val

mrs_skeptik [129]

Answer:

3, -2, -1, 0, 1, 2, 3

Step-by-step explanation:

Given the inequality expression |x| < 4 where x is unknown. To her the possible values of x, we must undeterstand that the absolute value of a number returns both positive and negative value.

Hence |x| can either return +x or -x

If x is positive, the inequality expression will be x<4.

If the value of x is negative, then -x<4

From -x<4

Multiply both sides by minus sign will change the sense of the inequality sign.

-(-x) > -4

x>-4

If x is greater than -4, then -4<x.

Combining both inequality will give;

-4 < x and x<4

-4<x<4

Hence the possible values of Javier's number are integers between -4 and 4.

The values are -3, -2, -1, 0, 1, 2, 3.

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2 years ago

What is the value of the expression below when x=4x=4? 7x^2 +8x-7 7x 2 +8x−7

Vinil7 [7]

Answer: 137

Step-by-step explanation:

The given expression: $7x^2 +8x-7$

We need to find the value of the expression when x=4.

So we just use the substitution property and substitute the value of x= 4 in the given expression , we get

$7(4)^2+8(4)-7\\\\= 7(16)+32-7\\\\= 112+25\\\\=137$

Hence, the value of the expression at x=4 is 137.

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