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GarryVolchara [31]
3 years ago
15

The cost per minute for a conference phone call originally 2.60 increased by 30% what is the new price?

Mathematics
2 answers:
harkovskaia [24]3 years ago
6 0
c.) $3.38

Original price = $2.60 
* It is the basis of increase thus, 100%
* 
The increase is 30%, thus, 100% + 30% = 130%

To get the new price, simply multiply the original price to 130%

$2.60 * 130% = $3.38

Another way of solving the problem is getting the equivalent of 30% and adding it to the original price.

$2.60 * 30% = $0.78
$2.60 + $0.78 = $3.38

Rom4ik [11]3 years ago
4 0
$2.60* (30/100)= $0.78

$2.60+ $0.78= $3.38

The correct answer is c. $3.38~
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A is the point (-2, 0) and B is the point (0, 4).Find the equation of the straight line joining A and B.
Rus_ich [418]

Answer:

y = 2*x + 4

Step-by-step explanation:

We know that a linear function can be written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

We know that if this line passes through the points (x₁, y₁) and (x₂, y₂) the slope can be written as:

a = (y₂ - y₁)/(x₂ - x₁)

So, here we know that our line must pass through the points (-2,0) and (0, 4)

Then the slope of this line is:

a = (4 - 0)/(0 - (-2))

a = 4/2 = 2

Then our line is something like:

y = 2*x + b

Now, to find the value of b we can use one of these two points, for example if we use the point (-2, 0), we know that, when x = -2, we must have y = 0.

0 = 2*(-2) + b

0 = -4 + b

4 = b

Then the equation for our line is:

y = 2*x + 4

6 0
3 years ago
Change word phrase to expressions or equations<br><br> The sum of p and 45 less than 89
stellarik [79]

Answer:

p + 45 < 89

Step-by-step explanation:

The sum of something is the result of addition so you know that they are adding p and 45 together. They then state that p plus 45 must be less than 89. You can show that by using the less than symbol "<"

If you want to find all of the different values that P could equal then all you have to do is subtract 45 from both sides so the equation would be

p < 44

this means that p can equal anything less than 44 for this statement to be valid. Hope this helped!

5 0
4 years ago
The side of a cube is 3^4 centimeters long. What is the volume of the cube?​
labwork [276]

Step-by-step explanation:

v=s^3 s=3^4=81

v=(81)^3

v=531,441 cm^3

7 0
3 years ago
Given: Angle T S R and Angle Q R S are right angles; Angle T Is-congruent-to Angle Q
prohojiy [21]

Answer:

B. of the AAS congruence theorem.

Step-by-step explanation:

Triangles TSR and QRS share side SR

SR=RS

Angle TSR and Angle QRS are right angles, so

∠S= ∠R

Angle T Is-congruent-to Angle Q, so

∠T= ∠Q

From these data, we have one congruent side and two congruent angles. The possible congruence theorem that we can apply will be either ASA or AAS. In the ASA theorem, the congruence side must be between the two congruent angles.

The congruence side required for the ASA theorem for this triangle is ST = RQ. It is wrong because the congruent side we have is SR=RS. The correct option is the AAS theorem.

5 0
4 years ago
Read 2 more answers
The expression 48+40 gives the number of minutes that the two channels spend on weather reports in the early morning. Use the di
Lorico [155]

Answer:

  8(6 +5) = 4(12 +10) = 2(24 +20)

Step-by-step explanation:

There are several common factors of 48 and 40. Any of them can be used for the purpose.

 48 +40

  = 2(24 +20)

  = 4(12 +10)

  = 8(6 +5)

3 0
3 years ago
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