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Valentin [98]
2 years ago
11

Cristina puede mecanografiar un ensayo de 50 páginas en 8h. Si el mes pasado Cristina y Ángela juntas mecanografiaron un ensayo

del mismo tamaño en 6 horas. Cuanto tiempo le tomaría a Ángela hacerlo sola
Mathematics
1 answer:
ehidna [41]2 years ago
5 0

Cristina can type a 50 page essay in 8h. Yes, last month Cristina and Angela together typed an essay of the same size in 6 hours. How long would it take Angela to make it sun

Translated

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Select each pair of equivalent numbers. PLS HELP DUE TMR AND I DONT HOW TO SOLVE IT, PLS SHOW HOW U SET IT UP
BaLLatris [955]
The pairs that are equivalent to each other are 40/1000 and 40%, 6/5 and 120%, 1/8 and 12.5% . They are the correct answers because if we divide for example 6/5 , we would get 1.2 and to turn a decimal into a percent we have to move the decimal point 2 times to the right meaning that the percentage would be 120% and you just do that for all! I hope this helped :)!!
3 0
2 years ago
A 25 ft ladder leans against a building. The ladder’s base is 13.5 feet from the building. Find the angle of elevation, which th
Goryan [66]

Answer:

57.3°

Step-by-step explanation:

A 25 feet ladder leans against a building.

The ladder's base is 13.5 feet from the building.

The ladder, the wall of the building and the ground form a right-angled triangle of:

Hypotenuse = 25 feet

Base = 13.5 feet

We are to find the angle of elevation which the ladder makes with the ground (or rather the angle created by hypotenuse and base)

Let's say the angle = X°

According to a trigonometric equation;

cos X° = adjacent side ÷ hypotenuse = \frac{13.5}{25} = 0.54

cos ^{-1} X = 57.5=3° (Answer rounded up to nearest one decimal place).

∴ The angle of elevation = 57.3°

4 0
3 years ago
Which function in vertex form is equivalent to f(x) = 4 + x² - 2x?
irga5000 [103]

Answer:

f(x)=(x-1)^2+3

Step-by-step explanation:

Both equations vertexes equal (1, 3) while the rest do not match.

4 0
1 year ago
Megan runs a bakery in which she can sell cakes for $12.95. Write a function for the amount of profit, in dollars, she makes for
MariettaO [177]
I believe it is f(n) = 12.95n

hope this helps !!
4 0
3 years ago
Write an equation for the graph​
ANEK [815]

Answer:

In standard form: y = 1(-2) + 2

Step-by-step explanation:

y=mx+b

m is the slope (calculate with rise over run, 2/2 is 1)

x is the x intercept (in this case -2)

b is the y intercept (in this case 2)

8 0
2 years ago
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