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2 years ago

9

Can someone answer this for me pls I need help rly bad

1 answer:

grigory [225]2 years ago

5 0

Answer:

the answer is y= 2/1x + 10

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Transform both equations in each system of equations so that each coefficient is an integer.

inysia [295]

For the first one multiply each term by the LCM of 4 and 6, which is 12:-

15x -36 = 2y..................(1)

and second multiply by 5:-

2x + y = 9..............(2)

solving:-
from equation (2) y = 9-2x, substitute in equation (1):-

15x - 36 = 2(9-2x) = 18 - 4x
19x = 54
x = 54/19 = 2.84

so y = 9 - 2(2.84) = 3.32

4 0

3 years ago

I need help please!!

mina [271]

Step-by-step explanation:

11

$\frac{ - 1}{5} \times \frac{4}{7}$

$\: \: \: \: \: \frac{ - 4}{35}$

12

$\frac{ - 1}{2} \times \frac{4}{5}$

$\frac{ - 2}{5}$

13

$\frac{ - 3}{2} \times \frac{7}{ - 10}$

$\frac{21}{20}$

14

$\frac{1}{2} \times \frac{7}{8}$

$\frac{7}{16}$

15

$\frac{ - 9}{5} \times \frac{1}{2}$

$\frac{ - 9}{10}$

16

$\frac{ - 32}{9} \times \frac{1}{3}$

$\frac{ - 32}{27}$

17

$\frac{ - 2}{1} \div \frac{ - 19}{5}$

$\: \: \: \: \: \: \frac{ - 2}{1} \times \frac{5}{ - 19}$

$\: \: \: \: \frac{ - 10}{19}$

18

$\frac{1}{9} \div \frac{ - 4}{3}$

$\frac{1}{9} \times \frac{3}{ - 4}$

$\frac{ - 1}{12}$

19

$\frac{13}{7} \div \frac{23}{4}$

$\frac{13}{7} \times \frac{4}{23}$

$\frac{52}{161}$

20

$\frac{ - 37}{10} \div \frac{9}{4}$

$\frac{ - 37}{10} \times \frac{4}{9}$

$\frac{ - 74}{45}$

5 0

3 years ago

Read 2 more answers

Does anyone know the answer to the question below.

kompoz [17]

Answer:

B. 0.3

Step-by-step explanation:

sin²(t) + cos²(t) = 1

sin²(t) + 0.1² = 1

sin²(t) = 1 - 0.01 = 0.09

sin(t) = √(0.09) = 0.3

6 0

3 years ago

Derek estimated the cost of his grocery bill to be $75, but it actually cost $110. Find the percent error rounded to the nearest

zhannawk [14.2K]

The absolute change in price was $12−$8=$4. Relative to the original price, it was 412, which is 0.3333 or 33.33%.

The answer was 1,150.0 but as a whole number its 1,150.

5 0

3 years ago

276x^2−136x+869+−5184x+6

iragen [17]

Answer:

$276x^{2} -5320x +875$

Step-by-step explanation:

Collect like terms and calculate the sum

7 0

2 years ago