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lisov135 [29]
3 years ago
7

Evaluate the given expression when x=15, y=10, and z=5​

Mathematics
1 answer:
tester [92]3 years ago
7 0
What is the expression/equation/problem?
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What is the following​
Stella [2.4K]

Answer:

what is it you just said What is the following​?

Step-by-step explanation:

3 0
3 years ago
Which equation represents a proportional relationship? only 1
nadya68 [22]

Answer:

I think its b and c

Step-by-step explanation:

good luck

4 0
3 years ago
What is the standard deviation for a normal distribution of the times of the first seven runners?
Ivahew [28]
We need specifics about the data
4 0
3 years ago
Solve using the elimination method<img src="https://tex.z-dn.net/?f=4x%2B5y%3D4%5C%5C8x%2B10y%3D8" id="TexFormula1" title="4x+5y
EastWind [94]

Answer:

y = all real numbers

x = all real numbers

In set notation/interval notation;

y∈(-∞,∞)

x∈(-∞,∞)

Step-by-step explanation:

1. Background information

The process of elimination involves manipulating an equation such that when the equations in the system are added, one variable is eliminated. Then one can solve for the other variable, finally, one substitutes the answer back in to find the eliminated variable. Therefore solving the system of equations.

2. The given information

Given the system;

(1)    4x + 5y = 4

(2)    8x + 10y = 8

3. Solving

Multiply the first equation by (-2)

4x + 5x = 4

*-2           *-2

-8x - 10x = -8

Add the first and second equations.

   -8x - 10y = -8

+ ( 8x + 10y = 8 )

_____________

0

This means that y can be any real number, and hence x can be any real number.

4 0
3 years ago
A shop-keeper wants to charge 1.5 times
FrozenT [24]

Answer:

ok so the equation would look like this

B=1.5A

so b is 1.5 times more then a

7 0
3 years ago
Read 2 more answers
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