1 year ago

Solve the following system of linear equations using elimination. 3r- y=5 x=y=1

Mathematics

1 answer:

Natali [406]1 year ago

7 0

3x - y = 5 Equation l

x - y = 1 Equation ll

By elimination

-Multiply equation l by -1

-3x + y = -5

x - y = 1

-2x = -4

Solve for x

x = -4/-2

x = 2

-Find y

2 - y = 1

-y = 1 - 2

-y = -1

y = -1/-1

y = 1

Solurtion: x = 2, y = 1

You might be interested in

A card is drawn from a standard deck of cards. Find the probability, given that the card is a non-face card.

gtnhenbr [62]

Answer:

my answer got deleted from this question but apparently i can do it over agian...so i just got a free 100 points :)

Step-by-step explanation:

4 0

3 years ago

Which equation represents a line which is parallel to y=0? x=−6 y=x-2 x=y y=2

lyudmila [28]

Answer:

X=-6

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

100 men and 100 women were surveyed and asked what there favorite ice ream flavor was, chart below

ser-zykov [4K]

Answer:

0.535 prefer chocolate and 0.465 prefer vanilla

Step-by-step explanation:

So starting off with chocolate. 200 people were surveyed. So 100 people would be 0.50 (or half or 50%). So 107 people who prefer chocolate would be a bit more than 0.50. 0.535 prefer chocolate.

Going to vanilla, 93 people prefer it. this is LESS than half so it has to be under 0.50. There is only one that is less than 0.50, which is 0.465. Also using addition, this would be the only logical one.

4 0

4 years ago

Tyler has 5 times as many books as Mai. How many books does Mai have if Tyler has n books?

antiseptic1488 [7]

Answer:

n times 5 equals m

Step-by-step explanation:

3 0

3 years ago

For his long distance phone service, Ivan pays a $3 monthly fee plus 11 cents per minute. Last month, Ivan's long distance bill

Anna71 [15]

To find the answer, you would first subtract 17.19-3=14.19. Then, divide 14.19/0.11=129. He was billed for 129 minutes
(You divide 14.19/0.11 because 0.11= 11 cents

3 0

4 years ago