Think of it this way: Lets add numbers in pairs, starting at the very outer 2 numbers (19 and 77) then go in by one and add the second number and the second to last (20 and 76), then (21 and 75) and so on. The sum of all of these pairs are all the same: 96. How many 96s will we have? Well since we're coming from each end toward the middle adding pairs we will have half the distance between 19 and 77, that is (77-19)/2 = 29. So we can actually just take 96*29 = 2784. This is the sum of all numbers between 19 and 77
let us assume that make inclination θ
with positive direction of x-axis then slope(m) of the line is given by
m=tanθ.
Hope it helps ☺☺
Mark as brainleist plz .
Answer:
El porcentaje de descuento fue del 10%.
Step-by-step explanation:
Para encontrar el porcentaje de descuento, puedes calcular la variación entre los dos precios ya que este será el porcentaje aplicado. Para hacerlo debes calcular la diferencia entre los dos precios restando el precio final menos el precio original y luego, debes dividir este resultado entre el precio original y multiplicar por 100:
Precio original=50
Precio final=45
((45-50)/50)*100
(-5/50)*100=-0.1*100=-10%
De acuerdo a esto, la respuesta es que el porcentaje de descuento fue del 10%.
Answer:
vases per hour
Step-by-step explanation:
To find the unit rate, solve the total amount of vases that Emily arranged divided by the amount of time that Emily took to arrange the vases.
Or, in other words, solve 20 ÷ 6, since Emily arranged 20 vases and it took her 6 hours to complete it.
You can do this by hand or you can do it on a calculator.
After you solved it, you should get , or 3.33333...
So, Emily's rate is vases per hour.
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Please mark as Brainliest!!!</em></u></h2>
