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3 years ago

What should be added to 66.778 get 78.2

Mathematics

1 answer:

maks197457 [2]3 years ago

7 0

Answer:

11.422

Step-by-step explanation:

$78.2 - 66.778 \\ = 11.422$

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4. What is the system of equations that describes the following graph?

GarryVolchara [31]

Answer:

The system of inequalities is

$y$

$y>0.25x$

Step-by-step explanation:

step 1

Find the equation of the dashed line with negative slope

The line passes through the points

(0,-2) and (-2,0)

Find the slope

$m=(0+2)/(-2-0)=-1$

Find the equation of the line in slope intercept form

$y=mx+b$

we have

$m=-1\\b=-2$

substitute

$y=-x-2$

The solution of the inequality is the shaded area below the dashed line

therefore

The equation of the inequality A is

$y$

step 2

Find the equation of the dashed line with positive slope

The line passes through the points

(0,0) and (4,1)

Find the slope

$m=(1-0)/(4-0)=0.25$

Find the equation of the line (direct variation)

$y=kx$

we have

$k=0.25$

substitute

$y=0.25x$

The solution of the inequality is the shaded area above the dashed line

therefore

The equation of the inequality B is

$y>0.25x$

therefore

The system of inequalities is

$y$

$y>0.25x$

4 0

2 years ago

The awnser I’m really have trouble finding a awnser

svlad2 [7]

$A = \pi r^2$
$C=2 \pi r$
$\pi r^2 = 50.24$
$\pi r^2/ \pi =50.24/ \pi$
$r^2 = 16$
$r=4$
$C = 2 \pi r$
$C = 25.13$

8 0

2 years ago

The balance of a loan is $2,570 in January, and the monthly payment is $125.50. The relationship between the loan balance, y, an

tigry1 [53]

Answer:

600<2570-125.5x<2000 subtract 2570 from all terms...

-970<-125.5x<-570 divide all terms by -125.5 (and reverse signs because of division by a negative!)

7.73>x>4.54 and x is months since January, and since months can only be integers...

x=[5,7]

So January + 5, 6, and 7 respectively are the three months that satisfy the equation...

June, July, and August.

Step-by-step explanation:

6 0

2 years ago

HELP ASAP PLEASE 3 extra points if you get it right

-BARSIC- [3]

It would be the origin

8 0

3 years ago

Read 2 more answers

What is the answer to a+5= -5a+5

9966 [12]

the answer is a = 0

7 0

3 years ago

What should be added to 66.778 get 78.2​

What should be added to 66.778 get 78.2