All categories

3 years ago

Help plz TvT

Mathematics

1 answer:

sergeinik [125]3 years ago

4 0

Answer:

Three over 5y + 15.

Step-by-step explanation:

Because 15 divded by 3 is 5 so the y is 5

You might be interested in

Can anyone tell me what’s the answer??

maks197457 [2]

Answer:

x = 10

y = 25

Step-by-step explanation:

if you add the equations as they are then the 'y-term' is eliminated:

60x = 600

x = 10

substitute x=10 to find value of 'y':

40(10) + 4y = 500

400 + 4y = 500

4y = 100

y = 25

Check:

20(10) - 4(25) should equal 100

200 - 100 = 100

100 = 100

5 0

2 years ago

Jesse takes two data points from the weight and feed cost data set to calculate a slope, or average rate of change. A hamster we

MariettaO [177]

Answer:

$0.13 per lb

Step-by-step explanation:

5 0

3 years ago

A 0.8-liter bottle of Mexican wine costs 101 pesos. At thatprice, how much would a half-gallon jug of the same wine cost ind

monitta

Answer:

$12.18

Step-by-step explanation:

Given:

Cost of 0.8 liter bottle of Mexican wine = 101 pesos

cost of 1 liter bottle of Mexican wine = $\frac{\textup{101}}{\textup{0.8}}$ pesos

Now,

1 Mexican pesos = 0.051 dollars

thus,

cost of 1 liter bottle of Mexican wine = $\frac{\textup{101}}{\textup{0.8}}\times0.051$ dollars

also,

1 gallon = 3.78541 Liter

Thus,

half gallon = $\frac{\textup{3.78541}}{\textup{2}}$ = 1.892705 Liters

therefore,

cost of half gallon jug = $\frac{\textup{101}}{\textup{0.8}}\times0.051\times1.892705$ dollars

cost of half gallon jug of wine = $12.18

3 0

3 years ago

Which of the following are solutions to the equation below? Check all that apply . x ^ 2 + x - 20 = 0

Rina8888 [55]

Answer:

$x= -5 or x = 4$

Solution Set = {-5, 4}

Step-by-step explanation:

$x^{2} + x -20 = 0$

$x^{2} + 5x - 4x -20 = 0$

$(x^{2} + 5x) - (4x + 20) = 0$

$x(x + 5) - 4(x + 5) = 0$

$(x + 5)(x - 4) = 0$

$x+ 5= 0 or x - 4 = 0$

$x= -5 or x = 4$

Solution Set = {-5, 4}

7 0

3 years ago

Is the equation y=-2x+7 parallel

Ostrovityanka [42]

Answer:

Yes it's parallel

Step-by-step explanation:

Lines with the same slope are parallel.

The slope is -2.

3 0

3 years ago