4 years ago

What is the solution? Please show your work. 4x+5y=70 3x-2y=18

Mathematics

1 answer:

pishuonlain [190]4 years ago

5 0

Answer:

(x,y)=(10,6)

Step-by-step explanation:

Substitute the value of x into the equation {4x+ 5= 70

{x= 6+ 2/3y

solve the equation 4(6+2/3y) +5y = 70

substitute the value of y into the equation y=6

solve the equation x=6 + 2/3 times 6

A possible solution is x= 10

Check the solution (x,y) = (10 ,6)

Simplify {4 times 10 + 5 times 6 =7

{3 times 10 - 2 times 6 = 18

The ordered pair is a solution {70 = 70

{18 =18

You might be interested in

What is the actual area of the meeting room in square yards?

prohojiy [21]

Average Density (150 – 250 square feet per employee): Mix of ... Common Areas & Conference Rooms ... that often present to clients or have large team meetings .

8 0

4 years ago

In a brochure about an outdoor wilderness camp, the yearly attendance is rounded to 28,000 students.

larisa86 [58]

B mAybe???? I’m not sure

5 0

3 years ago

Read 2 more answers

Trey has answered 15 emails. This is 20% of emails he must answer how many emails does he needs to answer

Anettt [7]

Answer:

Step-by-step explanation:

15 times 5 is 75 75 minus 15 is 60 so the answer is 60

3 0

3 years ago

Read 2 more answers

3 questions -

kozerog [31]

1 - D) 45/60

2 - 80.08/26 = $3.08

3 - 1) 6.75/10 = 0.675
2) 7.25/12 = 0.60

2nd one is cheaper so it is better

Hope this helps!

3 0

4 years ago

Tyreek and his 4 friends equally split 3cups of juice. How much juice does each person get?

lyudmila [28]

Answer:

$\frac{3}{5}$ or 0.6 of a cup of juice

Step-by-step explanation:

Divide 3 by 5:

3/5

= 0.6

So, each person would get $\frac{3}{5}$ or 0.6 of a cup of juice.

5 0

3 years ago