It will take 133 days for Janet to save the money.
In order to find this, start by finding out how much more she needs to save. To find this, subtract the amount she has from the total goal amount.
500-120 = 380
So we know that she needs $380. To find how many weeks that it, divide the total amount needed to save by the amount she can save a week.
380/20 = 19 weeks.
Now to find the number of days, multiply the weeks by the number of days in a week.
19 x 7 = 133 days
Answer:
10/4 equals 2 1/2 when simplified.
Step-by-step explanation:
10/4 = 2 2/4 or 2 1/2 when simplified.
This is because, 4 x 2 = 8, and 8 + 2 (or 1/2 of 4) = 10.
Hope this helps! :D
Answer:
La parte de las escalara desde el piso al borde de la barda es de 5.66 metros.
⭐Explicación paso a paso
Para resolver haremos uso de identidades trigonométricas. Nos apoyaremos a su vez en la imagen adjunta, en el cual podemos representar la situación como un triángulo rectángulo.
Cateto opuesto: 4 metros
Cateto adyacente: 4 metros
Hipotenusa: longitud de la escalera (l)
Por Pitágoras:
l² = 4² + 4²
l² = 16 + 16
l² = 32
l = √32
l = 4√2 m
l = 5.66 metros
Igualmente, puedes consultar el siguiente ejercicio que es similar:
brainly.lat/tarea/257278 (Una escalera de 10 m de longitud esta apoyada sobre la pared . el pie de la escalera dista 6 m de la pared . ¿que altura alcanza la escalera sobre la pared?)
Step-by-step explanation:
Answer:
I assume that this is a quadratic equation, something like:
y = -47*x^2 - 24x + (-36)
we can rewrite it as:
y = -47x^2 - 24x - 36
Ok, this is a quadratic equation and we want to find the maximum value.
First, you can notice that the leading coefficient is negative.
This means that the arms of the graph will open downwards.
Then we can conclude that the vertex of the equation is the "higher" point, thus the maximum value will be at the vertex.
Remember that for a general function
y = a*x^2 + b*x + c
the vertex is at:
x = -b/2a
So, in our case:
y = -47x^2 - 24x - 36
The vertex will be at:
x = -(-24)/(2*-47) = -12/47
So we just need to evaluate the function in this to find the maximum value.
Remember that "evaluating" the function in x = -12/47 means that we need to change al the "x" by the number (-12/47)
y = -47*(-12/47)^2 - 24*(-12/47) - 36
y = -32.94
That is the maximum value of the function, -32.94
Answer:
Hope this is right and helps :)
Step-by-step explanation:
