Answer:
x = 10
y = 0
Step-by-step explanation:
1/2 x - 1/3 y = 5 ......1
x = 2/3 y + 10 ......2
substituting equation 2 in 1
1/2( 2/3y + 10) - 1/3y = 5
0.5(0.6667y + 10) - 0.3333y =5
0.33335y + 5 - 0.3333y = 5
0.33335y - 0.3333y = 5 - 5
0.00005y = 0
y = 0
substitute y = 0 in equation 2
x = 2/3(0) + 10
x = 0 + 10
x = 10
The answer is 20. n If u like my answer plz award me brainliest award
The centroid of a triangle<span> is the point where the three medians of the </span>triangle<span> meet. A median of a </span>triangle<span> is a line segment from one vertex to the mid point on the opposite side of the </span>triangle<span>. It can help you determine the proportions and angles within the triangle.</span>
Answer: C
Step-by-step explanation:
Simple they can't go into negative months so that can't be it. 35 months would put Mrs.Henryhard into the negatives and Mrs. Oliver into the 100 zone so it has too be C
Answer
Find out the how many birds were at the shelter on Wednesday .
To prove
let us assume that the number of birds be = x
let us assume that the number of cats be = y
As given
An animal shelter spends $3.00 per day to care for each bird and $7.00 per day to care for each cat.
Alexandra noticed that the shelter spent $174.00 caring for birds and cats on Wednesday.
than the equation becomes
3x + 7y = 174
As given
Alexandra found a record showing that there were a total of 34 birds and cats on Wednesday.
than the equation becomes
x + y = 34
Than the two equation are
3x + 7y = 174
and x + y = 34
multiply 3 by x + y = 34 and subracted from 3x + 7y = 174
3x - 3x + 7y - 3y = 174 - 102
4y = 72
y = 18
put in the equation x + y = 34
18 + x = 34
x = 34 - 18
x = 16
The number of birds at the shelter on wednesday is 16 .