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3 years ago

If you were to use the substitution method to solve the following system, choose the

Mathematics

1 answer:

Nezavi [6.7K]3 years ago

7 0

Answer:

15x - y = - 6.....15x + 6 = y...so we sub in 15x + 6 in for y on the other equation

5x - 3y = -13

5x - 3(15x + 6) = -13 <== the new equation

Step-by-step explanation:

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HELP PLZ

postnew [5]

Answer:

3/30 water

Step-by-step explanation:

3/5 water = 1 portion

x = 1/6 portion

x= (1/6 portion) (3/5 water) / 1 portion

x =3/30 water

4 0

3 years ago

Suppose T: ℝ3→ℝ2 is a linear transformation. Let U and V be the vectors given below, and suppose that T(U) and T(V) are as given

ira [324]

Answer:

$T(3u+2v)=(-10,29)$

Step-by-step explanation:

T is a linear transformation, hence it is homogeneous (T(cr)=cT(r) for all real c and r∈ℝ³) and additive (T(r+s)=T(r)+T(s), for all r,s∈ℝ³). Apply these properties with r=3u and s=2v to obtain:

$T(3u+2v)=T(3u)+T(2v)=3T(u)+2T(v)=3(-2,5)+2(-2,7)=(-6,15)+(-4,14)=(-10,29)$

We don't have an explicit definition of T, so it's more difficult to compute T(3u+2v) directly without using these properties.

8 0

3 years ago

The population of a city is 218720.

vodka [1.7K]

Correct Answer is 205,857

3 0

3 years ago

Which equation has no solution?

Cerrena [4.2K]

Answer:

Which of the following is a common sign that a chemical change has occurred?

Step-by-step explanation:

3 0

3 years ago

What happens when a rational number is added to an irrational number

Whitepunk [10]

The answer to your question is,

Each time they assume the sum is rational; however, upon rearranging the terms of their equation, they get a contradiction (that an irrational number is equal to a rational number). Since the assumption that the sum of a rational and irrational number is rational leads to a contradiction, the sum must be irrational.

-Mabel <3

6 0

3 years ago