All categories

3 years ago

Find (x.y). y=6x-11 and -2x-3y=-7

Mathematics

1 answer:

mezya [45]3 years ago

7 0

(-1.3,-18.8)

you would start by substituting y=6x-11 into -2x-3y=-7

so it would look like

-2x-3(6x-11)=-7

once you solve for x you would then take the x value of -1.3 and put it into the equation y=6x-11 so it would look like this

y=6(-1.3)-11

which would get you y=-18.8

to check you would put both the x and y value back into -2x-3y=-7 and boom answer

You might be interested in

For the following fraction ,tell whether you will add ,subtract, or multiply the exponents

DochEvi [55]

Answer:

Add the exponents

Step-by-step explanation:

Product Rule: am ∙ an = am + n, this says that to multiply two exponents with the same base, you keep the base and add the powers.

EX:

x multiplied by x^5=x^6

5 0

3 years ago

Read 2 more answers

A students home is 3.25 miles from school. A soda shop is located 900 feet farther down the road from school. What is the total

notka56 [123]

1 mile = 5,280 feet.

Convert the 0.25 mile to feet:

0.25 miles = 0.25 x 5,280 = 1,320 feet.

Add the soda shop distance to this:

1,320 + 900 = 2,220 feet.

Total distance is 3 miles and 2,220 feet

5 0

3 years ago

You are selling tickets for the school play "13". Student tickets cost $4 and general admission tickets cost $6. You sell 525 ti

Scilla [17]

Answer:

Step-by-step explanation:

s= student ticket

g= general admisson ticket

4s+6g=2876

s+g=525

4s+6g=2876

-4s-4g=-2100

add both equations

2g=776

g=388

s+g=525

s+388=525

s=137

6 0

3 years ago

the population of a town grows at the rate of 3 percent each year in 2010, the town had a population of 250000. what is the popu

Ulleksa [173]

Answer:

335,979 people (in Year 2020)

Step-by-step explanation:

Initial Population (Year 2010) = 250,000

Rate of Growth = 3% = 3/100 = 0.03

We want the population of the town in Year 2020 (at this rate). That is 10 years from now.

The formula for compound growth is:

$F=P(1+r)^t$

Where

F is the future value (in year 2020)

P is the present value (250,000)

r is the rate of increase per year (0.03)

t is the time in years (t = 10)

Lets substitute and find the value:

$F=P(1+r)^t\\F=250,000(1+0.03)^{10}\\F=250,000(1.03)^{10}\\F=335979.09$

Rounded, that would be:

335,979 people (in Year 2020)

4 0

3 years ago

PLS HELP ME ASAP FOR QUESTION 4!!! (MUST SHOW WORK!!) + LOTS OF POINTS!! *branliest*

algol13

No solution because if you distribute -4 to both 2.5y and -3.25 your equation becomes -10y+13-15 1/4=-10y. Then you subtract both 13 and 15 1/4 and get -2.25 so your equation becomes -10y-2.25=-10y. After that you add 10y to both side so your equation becomes -2.25=0 which has no solution.

4 0

4 years ago