3 years ago

2y-x=8 and y-2x=-5. Solve the system of equations

Mathematics

1 answer:

nikklg [1K]3 years ago

7 0

Answer:

y = 7 x = 9

Step-by-step explanation:

2y-x=8

2(2y-x=8)

4y-2x=16

3y +0x= 21

3y=21

y=7

2(7)-x=8

14-x=8

9=x

You might be interested in

At Jefferson Middle School, eighty-two students were asked which sports they plan to participate in for the coming year. Twenty

blondinia [14]

Answer:

30 students they are including the students that are also planning to participate in other sports to.

8 0

3 years ago

Give me 2 exponents that equal to 8 :)

alekssr [168]

4 also 2 :))))))))))))))))

5 0

3 years ago

A total of $2100 for a house painting job is to be divided between two painters in the ratio of 3 to 4. How much does each paint

kakasveta [241]

$\bf 2100\qquad 3:4\qquad \cfrac{3}{4}\implies \cfrac{3\cdot \frac{2100}{3+4}}{4\cdot \frac{2100}{3+4}}\implies \cfrac{3\cdot 300}{4\cdot 300}\implies \cfrac{900}{1200}$

4 0

3 years ago

Nola purchased 2.5 pounds of cheese for $10.50. Her mother purchased 3 pounds of the same cheese for $12.60. The cost of cheese

jeka94

Answer:

cost per pound = $4.20

Step-by-step explanation:

Cheese cost per pound = ?

first for the cost per pound

cost per pound = total cost / pounds bought

cost per pound = $10.50 / 2.5 pounds

cost per pound = $4.20

to check the above answer is correct

cost per pound = total cost / pounds bought

cost per pound = $12.60 / 3 pounds

cost per pound = $4.20

Therefor, the cheese costs $4.20 per pound.

4 0

3 years ago

I need help with this problem #8 ignore the scribbles

devlian [24]

There is no picture that I see:/

4 0

3 years ago