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Oksi-84 [34.3K]
2 years ago
15

Find the value of 7 + b when b= 15. Help ?

Mathematics
2 answers:
babymother [125]2 years ago
8 0

Answer:

21

Step-by-step explanation:

Lisa [10]2 years ago
4 0

7 + b

= 7 + 15

= <u>22</u>

<u>hope</u><u> </u><u>it</u><u> </u><u>helps</u><u>!</u>

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Find the quotient <br> 2/5÷3/4
nlexa [21]

Answer:

0.533

Step-by-step explanation:

7 0
3 years ago
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A cleaning company uses 10 lbs each of chemicals A, B and C for each house it cleans. After some quality complaints, the company
umka21 [38]

Answer:

25%

Step-by-step explanation:

Let us first derive an equation for the productivity.

Given

No. of houses = 1 (Assumption)

Amount of Chemicals = 30 (10 x A, B, C)

Now the formula for productivity is as follow

Productivity % (P) = (Output/Input) * 100

Assuming the current productivity is 100%. We get the value for required output but using the value of 30 (Amount of Chemicals) as Input

100 = \frac{x}{30}*100\\ x = 30

Since we now know the value for desired output. We replace the value of input by 40, since 10 lbs of Chemicals have been increased per house.

Productivity(P) = \frac{30}{40}*100\\ Productivity(P) = 75

The new Productivity is 75%

There is a reduction of 25% in productivity

8 0
3 years ago
Write an equation for the line graphed.
Kay [80]

Answer:

the answer is "d" because the x region is negative 2 and the y region is a positive1

6 0
3 years ago
Negative two thirds • one and one third ​
Anuta_ua [19.1K]

Answer:

-8/9 or -0.8 repeating

Step-by-step explanation:

4 0
3 years ago
Help pleaseeeeeeeeee​
Viktor [21]

Answer: Area of Δ DUO = 12.0 square units.

Step-by-step explanation:

From the diagram, Δ DPA is a right angled triangle and right angled at P.

Therefore ∠D will be

Tan ∅° = PA/DP ie, opposite side all over the adjacent.

            = 4.5/3.75

Tan∅°   = 1.2

to calculate ∅°, we know find the inverse of Tan 1.2

∅ = Tan^-1 1 .2 from your log tables or calculator

         ∅° = 50.20°.

               = 50°

Since line DR is ⊥ to line OP

∠ADR = 90° - 50°

            = 40°.

From the diagram,

     ∠ADR = ∠UDR = 40°

Therefore,

    ∠ODU = 180 - ( 40 + 40 + 90 )  { Angle on a straight line }

                 = 180 - 170

                 = 10°

From Δ UDM , line MU is he height of the required Δ DUO whose area is to be determined.

Now find the height MU

            Tan10.0° = MU/10, where MU is the opposite side and 10.0 is the adjacent from the diagram given.

             MU = Tan10.0 x 10.0

                    =  0.1763 x 10.0

                    =  1.763

Therefore to calculate the area of Δ DUO

                    =   1/2 x base x height

                    = 1/2 x line OD x line MU

                    = 1/2 x 14.0 x 1.763

                    = 7 x 1.763

                    = 12.341

                    = 12.0 square units.

         

           =  

                   

6 0
4 years ago
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