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emmasim [6.3K]
3 years ago
8

What is the value of y in the solution to the system of equations?x y = 12x – 3y = –30y=-6x+18​

Mathematics
1 answer:
Oksana_A [137]3 years ago
3 0

Answer:

x=4/5

y=66/5

Use the system of equation to solve for the variables

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14 x 3/5 plz help thanks
kumpel [21]
14/1 x 3/5 = 42/5 which then equals 8 1/20
3 0
4 years ago
Read 2 more answers
A horse that weighs 1 1/4 tons is carrying a 110 pound person, a 15 ounce water bottle, and a 16 1/2 pound basket what is the we
poizon [28]

Answer:

2635.875pounds

Step-by-step explanation:

Converting all the units to pounds for unit consistency. Let's convert

1 1/4tons horse weight and 15ounce water bottle to pounds.

According to the conversion;

1 ton = 2000pounds

1 1/4 tons = (2000×5/4)pounds = 2500pounds

Similarly for the conversion of ounce to pounds;

1 ounce = 0.625pound

15 ounces of water bottle = (0.625×15)pounds

= 9.375pounds

The total weight of the horse, rider, and items in total will give;

2500pounds horse + 110pounds person + 9.375pounds water bottle + 16.5pounds basket

= 2635.875pounds

8 0
3 years ago
The table of values represents a function ​f(x).
TiliK225 [7]

Answer:

- The interval  [9, 10] is 1,375% greater than the interval [5, 8].

- The interval  [9, 10] is 14.75 times greater than the interval [5, 8].

Step-by-step explanation:

1. To solve this problem you must apply the following formula:

AverageRateOfChange=\frac{y_{2}-y_{1}}{x_{2}-y_{1}}

2. Let's calculate the average rate of change of each interval:

a) Interval [9,10]:

 =\frac{11,014-4,052}{10-9}=6,962

b) Interval [5,8]:

 =\frac{1,491-75}{8-5}=472

3. The difference is:

6,962-472=6,490

4. In percentage:

(\frac{6,962-472}{472})(100)=1,375%

5. You have that the interval [9,10] is 14.75 times greater than the interval [5,8], as you can see below:

\frac{6,962}{472}=14.75

3 0
4 years ago
Read 2 more answers
Colton bought a CD for $760 that earns a 3.8% APR and is compounded monthly. The CD matures in 3 years. How much will this CD be
4vir4ik [10]

Answer:

  $851.62

Step-by-step explanation:

The value multiplier wll be ...

  (1 +r/n)^(nt)

where r is the annual interest rate (3.8%), n is the number of compoundings per year (12), and t is the number of years (3). Filling in these numbers, we see the ending value will be ...

  A = $760(1 +.038/12)^(12·3) = $760(1.0031667^36) = $851.62

8 0
4 years ago
4. The expression (3x –8)(2x+5)-(x+1)(2x+5) can be written as the product of 2x+5
Setler79 [48]

Answer:

option 3 : (2x - 7 )

Step-by-step explanation:

ax + bx = x(a+ b)

a(x+ y) + b(x+y) = (x+y)(a+b)

(3x - 8 ) ( 2x + 5) - (x + 1)(2x + 5)\\\\(2x+5)[ (3x - 8) - (x+1) ]      [ (2x + 5) is common is both terms ]

(2x+ 5)(3x -8 -x + 1)\\\\(2x+ 5)(2x - 7)

Therefore , the binomial is ( 2x - 7)

7 0
3 years ago
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