3 years ago

{7u+2v=1 {17u+6v=−9 System of equation Please Explain

Mathematics

1 answer:

morpeh [17]3 years ago

4 0

Answer:

u= -3 v=11

Step-by-step explanation:

7u+2v=1 17u+6v=-9

-3(7u+2v=1)= -21u-6v=-3

-21u-6v=-3 + 17u+6v=-9 = -4u= -12

u=-3

7(-3)+2v=1

-21+2v=1

2v=22

v=11

You might be interested in

(05.02) PLEASE ACTUALLY ANSWER AND EXPLAIN WELL!! :)

Nadusha1986 [10]

Answer:

x = 40°

Step-by-step explanation:

Straight angle is equal to 180°

Angle x, 60° and 80° form a straight angle.

<u>Then we have following equation to solve for x:</u>

x + 60° + 80° = 180°
x + 140° = 180°
x = 180° - 140°
x = 40°

6 0

3 years ago

Read 2 more answers

What fraction is 2kg over 275g

irina1246 [14]

2kg=2000g so do 275/2000 and cancel down to 11/80 :)

8 0

3 years ago

10) in a school there are 1500 students. if 60% are boys, find the numbers of boys.

Debora [2.8K]

Answer:

900

Step-by-step explanation:

.6 * 1500

4 0

2 years ago

Read 2 more answers

The normal mean temperature in Barrow, Alaska is -2° F in November.

REY [17]

I think the correct one is b but I’m not sure

4 0

3 years ago

What is the ratio for sine

Ivahew [28]

Answer:

B the light blue one

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers