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kolezko [41]
2 years ago
11

Alvin is 8 years older than Elga. The sum of their ages is 78. What is Elga's age?

Mathematics
1 answer:
Mazyrski [523]2 years ago
3 0

Answer:

35

Step-by-step explanation:

ok let's look at these old farts.

alvin is 8 years older than elga, so elga needs 8 more years to be as old as Alvin is. AKA,

Alvin = Elga + 8

The sum of their ages is 78.

Alvin + Elga = 78

Now put the equations together,

(Elga + 8) + Elga = 78

2 * Elga = 70

Elga = 35

Therefore, Elga is 35 years old! So old !!

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Depending on the car and the additional features, a convertible sports car can cost between $19,028 and $370,790. Write two ineq
liraira [26]
Cost of Car= C 

$19,028  <span>≥</span><span> C ≤  $370,790
</span>
The cost of the sports car is greater than or equal to $19, 028 and less than or equal to $370,790. 
6 0
3 years ago
Carlos tiene 3 chocolates más que mariana, mariana tiene 3 chocolates más que verónica y verónica tiene 3 chocolates más que lui
Elden [556K]
Carlos : 23.5


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6 0
3 years ago
Write a sentence to represent the solution set in the context of the problem.
Nikolay [14]

Answer:

6 sales

Step-by-step explanation:

(I MADE THIS QUESTION I DIDINT KNOW IF YOU NEEDED IT)

Jake wants to but the new computer(it costs $920). Jake has $560 saved in his bank. Jake also gets $60 whenever he makes a sale at his job. How many sale(s) at his job does Jake need to make? <em>Answer </em>-- Jake needs to make 6 sales of $60 to buy the new computer.

MATH -----

$6 x $60 = $360

$360 + $560 = $920

6 0
2 years ago
The value of a weight vector is given as (w1=3, w2=-2, w0=1) for a linear model with soft threshold (sigmoid) function f(x).
dolphi86 [110]

Answer:

Please see explanation for the answer. The code is written in python and is as given below:

Step-by-step explanation:

The solution is obtained on the Python with the following code

import matplotlib.pyplot as plotter

import numpy as npy

x_s = npy.linspace(-5,5,100)  #Defining a linear sample space with boundaries as -5 to 5 and 100 as number of samples.

def sigmo(z):return 1/(1 + npy.exp(-z)) #Defining sigmoid function for the f(x).

plotter.plot(x_s, sigmo(x_s))

plotter.plot([-5,5],[.5,.5])

plotter.xlabel("z")

plotter.ylabel("sigmoid(z)")

plotter.show()

8 0
3 years ago
Is this right ? Plz help mee
sasho [114]
6.32 is the final answer! :)
6 0
3 years ago
Read 2 more answers
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