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2 years ago

Describe and correct the error in solving the inequality 9x > -45

Mathematics

1 answer:

Mnenie [13.5K]2 years ago

3 0

9x > -45
__ __
9 9

x > -5-----> ANSWER

if :
-9x > -45
___ ___
-9 -9

x < 5

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This is the one I need help with please

Masteriza [31]

Let's add the percentage of the processing new books and repairing bindings.

6%+9%= 15%

We need to find how many times that goes into 44%

15%*3= 45

It is about 3 times more than she will spend processing new books and be repairing bindings.

I hope this helps!
~cupcake

4 0

2 years ago

— 9a3. — Зазь simplify

-BARSIC- [3]

Answer:

-3a(9+3b)

Step-by-step explanation:

-9a3-3a3b

= -27a-9ab

= -3a(9+3b) answer

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2 years ago

Lin runs 5 laps around a track in 6 minutes. How many minutes per lap is that? ___minutes How many laps per minute is that? ___

snow_lady [41]

Answer:

a. 1.2 minutes

b. 0.83 laps

c. 25.2 minutes

Step-by-step explanation:

Lin runs 5 laps around a track in 6 minutes.

a. How many minutes per lap is that?

5 laps = 6 minutes

1 laps = x minutes

Cross Multiply

x minute × 5 laps = 6 minutes × 1 laps

x minute = 6 minutes × 1 laps/5 laps

x laps = 1.2 minutes

Hence, it is 1.2 minutes per lap

b. How many laps per minute is that?

6 minutes = 5 laps

1 minute = x laps

Cross Multiply

6 minutes × x laps = 1 minute × 5 laps

x laps = 1 minute × 5 laps/6 minutes

x laps = 0.8333333333 laps

Hence, it is 0.83 laps per minute.

c. If Lin runs 21 laps at the same rate,

5 laps = 6 minutes

21 laps = x minutes

Cross Multiply

x minute × 5 laps = 6 minutes × 21 laps

x minute = 6 minutes × 21 laps/5 laps

x laps = 25.2 minutes

Hence, it takes her 25.2 minutes

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2 years ago

What is the first step in constructing an inscribed circle inside triangle XYZ?

Tasya [4]

Answer:

Construct the angle bisector of angle Y

Step-by-step explanation:

-An inscribed circle is defined as the largest circle that can be drawn within the boundaries of a plane figure.

-The first step in constructing an inscribed circle is to bisect any two angles of the plane figure, triangle in this case, as there intersection point will form the circle's center.

=>Hence, the first step is Construct the angle bisector of angle Y or Z or X( whichever you decide on).

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2 years ago

What is the sum of the fractions below 2/7+1/5 A.1/4 B.11/35 C.17/35 D.1/6

inessss [21]

Answer: The answer is C

Step-by-step explanation: Just did it in a quiz

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2 years ago