3 years ago

5/7 - (- 1/7) =? help pleaseeeeee

Mathematics

1 answer:

zhannawk [14.2K]3 years ago

7 0

The answer to this is 0.857142857143 i hope this helped you my guy.

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25 x square - 4y Square = 36 equation 1 <br>5 x - 2 y=2equation 2

DIA [1.3K]

It is hard to find out question cn u pls take a pic and upload so it will more easier to find out the question

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3 years ago

(01.04 LC)Multiply (-1/3)(1/4)

pashok25 [27]

Answer:

D: -1/12

Step-by-step explanation:

4 0

3 years ago

Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her plan has a monthly fee and a charge for

yan [13]

Answer:

The costs of the plan are $0.15 per minute and a monthly fee of $39

Step-by-step explanation:

Let

x ----> the number of minutes used

y ----> is the total cost

step 1

Find the slope of the linear equation

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

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

we have the ordered pairs

(100,54) and (660, 138)

substitute

$m=\frac{138-54}{660-100}$

$m=\frac{84}{560}=\$0.15\ per\ minute$

step 2

Find the equation of the line in point slope form

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

we have

$m=0.15\\point\ (100,54)$

substitute

$y-54=0.15(x-100)$

step 3

Convert to slope intercept form

Isolate the variable y

$y-54=0.15x-15\\y=0.15x-15+54\\y=0.15x+39$

therefore

The costs of the plan are $0.15 per minute and a monthly fee of $39

6 0

3 years ago

Write these numbers in order of size.

Semenov [28]

.09, 1/10,12%,0.13,3/20

5 0

2 years ago

Read 2 more answers

How many ordered pairs of positive integers satisfy xY=32?

IRINA_888 [86]

Answer:

Step-by-step explanation:

xy = 32

x ; y is the divisor of 32

but : 32 = 2^5

6 ordered pairs of positive integers satisfy xY=32

(1;32) , (2;16) , (4; 8),(32; 1) , (16;2) , (8;4) .

4 0

3 years ago