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4 years ago

9

Norman decided to let the sister's age be x, and mike's age be x+2. he then write the equation x+x+2=30 show norman how to set u

p and solve the problem correctly

1 answer:

ZanzabumX [31]4 years ago

3 0

You just add the x’s up and move the 2 over to make x the subject.

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4k+mn=n-3; solve for n

solong [7]

Since we are solving for n you have to isolate the n. Therefore, you want all the variables with an n in it on one side and all the variables without an n on the other side:) :
4k+3= -mn+n (There were a change in signs because for example you moved the -3 to the other side, therefore it can only be a negative on one side so now you have to change the sign to a positive:) hope you got that)
That would've been your answer because you cannot do anything else...Hope this helped :)

8 0

3 years ago

A field is in the shape of a rectangle 5/6 mile long and 3/4 mile wide. What is the area of the field? *

Lynna [10]

Area = length x width

Area = 5/6 x 3/4

= (5x3) / (6x4)

= 15/24

= 5/8 square miles

7 0

3 years ago

What are the solutions of 3x+9+4x+x=

mart [117]

Answer:

3x + 9 + 4x + x = 8x + 9

Step-by-step explanation:

combine like terms

5 0

3 years ago

Which choice is the equation of a line that passes through (9, -3) and is parallel to the line represented by this equation? y=5

miskamm [114]

Answer:

$y+3=\frac{5}{3}(x-9)$ or $y=\frac{5}{3}x-18$

Step-by-step explanation:

step 1

Find the slope of the line parallel to the given line

we know that

If two lines are parallel, then their slopes are the same

we have

$y=\frac{5}{3}x-4$

therefore

The slope m of the line parallel to the given line is

$m=\frac{5}{3}$

step 2

Find the equation of the line in point slope form

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

we have

$m=\frac{5}{3}$

$point\ (9,-3)$

substitute

$y+3=\frac{5}{3}(x-9)$ ----> equation of the line in point slope form

step 3

Find the equation of the line in slope intercept form

$y=mx+b$

we have

$y+3=\frac{5}{3}(x-9)$

Isolate the variable y

$y+3=\frac{5}{3}x-15$

$y=\frac{5}{3}x-15-3$

$y=\frac{5}{3}x-18$

7 0

3 years ago

Write an expression with a value of 12.it should contain four numbers and two different operations

sergey [27]

Roughly what I gave your doppelganger (you + 1) a few minutes ago . . .

[ (4 + 3)² - 1 ] divided by (7 - 3) .

4 0

3 years ago