3 years ago

Can you help me on this one please

1 answer:

8 0

Answer: x ≥ 1307

Explanation:

First, write the formula:
monthly fee: $14
minute rate: 7¢ or $0.07
total charge: $105.49
.07x + 14 ≥ 105.49 (the sign is this way because they said this price was the least she had been charged for a month.
You can solve for x just like you would in an equation by making the ≥ sign an equal sign
.07x + 14 = 105.49
- 14 -14
.07x = 91.49
÷ .07 ÷ .07
x = 1307 minutes
since you didn't divide by a negative number, the inequality sign stays the same:
x ≥ 1307

You might be interested in

Solve for p. <br><br> i = prt<br><br> p = i-rt<br> p = i/(rt)<br> p = (rt)/i

Debora [2.8K]

Answer:

Step-by-step explanation:

$i=prt\to prt=i\qquad\text{divide both sides by}\ rt\neq0\\\\\dfrac{prt}{rt}=\dfrac{i}{rt}\\\\p=\dfrac{i}{rt}$

5 0

3 years ago

Find the surface area of a triangular prism that has the following dimensions. Use the formula SA = 2B + Ph.

OverLord2011 [107]

Answer: The surface area of the triangular prism is 448 square millimeters.

To find the surface area, we just need to input our values into the formula that is given.

SA = 2B + Ph
SA = 2(84) + 56(5)
SA = 168 + 280
SA = 448

The final surface area is 448 mm^2.

7 0

3 years ago

Read 2 more answers

Jessie typed the first 300 words of her essay in 12 minutes. She then got tired and typed the remaining 300 words of her essay i

kozerog [31]

Answer:

22,22 min

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Mrs Patterson class room has sixteen empty chairs all the chairs are occupied when every student is present if 2/5 of the studen

tatyana61 [14]

40 students make up her entire class

4 0

3 years ago

ravis gas tank is 1/2 full .after he buys 2 gallons of gas it is 2/3 full how many gallons can ravis tank hold?

aliya0001 [1]

So
1/2x+2=2/3x
convert to common fraction
1/2=3/6
2/3=4/6
3/6x+2=4/6x
subtract 3/6x from both sides
2=1/6x
multiply boh tisdes by 6
12=x
the tank can hold 12 gallon

8 0

3 years ago