How many solutions does this following equation have? -15y + 7 +17y = 2y + 70

Mathematics

2 answers:

MrRissso [65]2 years ago

4 0

This equation has no solution:

-15y+7+17y=2y+70

2y+7=2y+70

7≠70

KiRa [710]2 years ago

3 0

The equation has no solution

given - 15y + 7 + 17y = 2y + 70, then

2y + 7 = 2y + 70 ← not possible

there is no solution to the equation

we obtain 0 = 63 ← not possible

You might be interested in

Determine whether the statement is true or false. If it is false, rewrite it as a true statement. A population is the collectio

tatuchka [14]

Answer:

False

Step-by-step explanation:

This is false because a population represents all and not some. A population is the collection of all outcomes, responses, measurements, or counts that are of interest. It is not a collection of 'some' outcomes. It is a collection of 'all' outcomes.

A population data set is a set which contains all the items or elements of a specified group or data set. It is a complete list of all the possible data values.

The sample of a population are drawn out of a population. They are A subset of a population.

8 0

2 years ago

A piece of wire measuring 20 feet is attached to a telephone pole as a guy wire. The distance along the ground from the bottom o

dem82 [27]

Answer: Height at which the wire is attached to the pole is 12 feet.

Explanation:

Since we have given that

Length of the wire = 20 feet

Let the height at which wire is attached to the pole be h

and distance along the ground from the bottom of the pole to the end of the wire be x+4

Now, it forms a right angle triangle so, we can apply "Pythagorus theorem".

$H^2=B^2+P^2\\\\20^2=x^2+(x+4)^2\\\\400=x^2+x^2+8x+16\\\\400=2x^2+8x+16\\\\400=2(x^2+4x+8)\\\\200=x^2+4x+8\\\\x^2+4x-192=0\\\\x^2+16x-12x-192=0\\\\x(x+16)-12(x+16)=0\\\\(x+16)(x-12)=0\\\\x=-16\ and\ 12$