Customer of a phone company can choose between two service plans for long distance calls the first plan has no monthly fee but charges $.16 for each minute of calls a second plan has a $21 monthly fee and charges an additional $.11 for each mintue of callsfor how many minutes of calls Will the cost of the two plans be equal

575

Step-by-step explanation:

.16x = 23 + .12x

Subtract .12x and then divide and get

.04x = 23

x = 575 minutes

4.4 min

Step-by-step explanation:

First plan= 16 per minute

First plan= 16x

Second plan= 21 + 11 perminute

Second lan= 21 + 11x

At which minute will they be the same? :

At which minute

first plan=second plan

16x = 21 + 11x

16x - 11x = 22 + 11x - 11x

5x=22

x=4.4

-When doind equations we have to balance them, if you minus by one side you also minus by the other.

-Always try to isolate the variable on one side

d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.

false

step-by-step explanation:

false.   two legs of the trapezoid would be congruent, but the other two would not.   were all the legs congruent, then we'd have a square; were the 2 shorter sides congruent and the 2 longer sides also congruent, we'd have a rectangle.