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3 years ago

It cost Zachary $7.00 to send 140 text messages. How many text messages did he send if he spent $0.85?

Mathematics

2 answers:

saw5 [17]3 years ago

8 0

Answer:

$10.50+(x*0.15)=$7.00 for 85c only a genius will understand my way of teaching

Step-by-step explanation:

This will tell you your answer!

trasher [3.6K]3 years ago

5 0

Answer:

17 messages.

Step-by-step explanation:

Divide 140 by 7 to get 20.

This means it costs 1 dollar for 20 messages.

And therefore 17 messages for 85c.

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Step-by-step explanation:

-10 + ( -10)

= -10 - 10

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3 years ago

The Odd and even numbered hotel rooms are on different sides of the hall room 23q is between which two rooms

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4 years ago

On Monday the price of one share of Webb company stock was 24.85. By Friday the price was 25.004. By how much did the price chan

ella [17]

Answer:

Change in price = 0.154

Step-by-step explanation:

Given that,

The price on Monday = 24.85

The price on Friday = 25.004

We need to find the change in price from Monday to Friday. It can be calculated as follows :

Change = 25.004 - 24.85

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3 years ago

Complete the equation of the line through (-9,7) & (-6,-3)

scZoUnD [109]

Answer:

$y=-\frac{10}{3}x-23$

Step-by-step explanation:

we have the points

(-9,7) and (-6,-3)

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{-3-7}{-6+9}$

$m=-\frac{10}{3}$

step 2

Find the equation in point slope form

$y-y1=m(x-x1)$

we have

$m=-\frac{10}{3}$

$(x1,y1)=(-6,-3)$

substitute

$y+3=-\frac{10}{3}(x+6)$ ---> equation in point slope form

step 3

Find the equation of the line in slope intercept form

$y=mx+b$

we have

$y+3=-\frac{10}{3}(x+6)$

Isolate the variable y

Distribute right side

$y+3=-\frac{10}{3}x-20$

subtract 3 both sides

$y=-\frac{10}{3}x-20-3$

$y=-\frac{10}{3}x-23$

7 0

3 years ago

Suppose that 13 inches of wire costs 78 cents.

GarryVolchara [31]

Answer:

$0.42

Step-by-step explanation:

create a proportion:

13/.78 = 7/x

cross-multiply to get:

13x = 7(.78)

13x = 5.46

x = 5.46/13

x = .42

5 0

3 years ago