All categories

3 years ago

Which expression is equivalent to 1 over 5 m − 20?

Mathematics

1 answer:

laiz [17]3 years ago

7 0

-----------

5m -20

factor out a 5 in the denominator

-----------

5 (m -4)

Choice A

You might be interested in

Mr. Murphy has an old coin that has 10 sides. If it's shape it's a polygon how many angles does the old coin have

Leni [432]

Answer-
The coin has 5 angles and 5 sides

4 0

3 years ago

2l+2w 10 feet by 3.5 feet

Nana76 [90]

Answer:

Step-by-step explanation:

Perimeter of rectangle =2l+2w

10 feet by 3.5 feet

l = 10feet and w = 3.5feet

Perimeter = 2(10) + 2(3.5)

Perimeter = 20 + 7

Perimeter = 27feet

5 0

3 years ago

Which chocolate chip cookies have the greater spread in the number of chips per cookie?

Elan Coil [88]

Reduced fat had the greater spread

8 0

2 years ago

Read 2 more answers

The graph above is a transformation of the function x2 Write an equation for the function graphed above

lutik1710 [3]

Answer: y=0,5x²-x-1,5.

Step-by-step explanation:

$(-1;0)\ \ \ \ (3;0)\ \ \ \ (1;-2) \ \ \ \ y=ax^2+bx+c\ ?\\\left\{\begin{array}{ccc}a*(-1)^2+b*(-1)+c=0\\a*3^2+b*3+c=0\\a*1^2+b*1+c=-2\end{array}\right \ \ \ \ \ \left\{\begin{array}{ccc}a-b+c=0\ \ (1)\\9a+3b+c=0\ (2)\\a+b+c=-2\ (3)\end{array}\right \\$

We summarize (1) and (3):

$2a+2c=-2\ |:2\\a+c=-1\ \ \ \ \Rightarrow\\a+b+c=-2\\(a+s)+b=-2\\-1+b=-2\\b=-1.$

Substitute b=-1 into (2):

$9a+3*(-1)+c=0\\9a-3+c=0\\9a+c=3\ \ (5).\\$

From (5) subtract (4):

$8a=4\ |:8\\a=0,5.\ \ \ \ \Rightarrow\\$

Substitute a=0,5 into (4):

$0,5+c=-1\\c=-1,5.$

Hense:

y=0,5x²-x-1,5.

5 0

1 year ago

Help me with this question

Arturiano [62]

A) 60q/12
b) set ^ this equation equal to the one on the paper, move the variable to one side, and the rest should be easy from there
c) he loses profits

8 0

2 years ago