All categories

3 years ago

I don’t know what the answer to this question is , help

Mathematics

1 answer:

ipn [44]3 years ago

3 0

Answer:

(4, 0)

Step-by-step explanation:

given the 2 equations

y = x - 4 → (1)

- 4x - 6y = - 16 → (2)

substitute y = x - 4 into (2)

- 4x - 6(x - 4) = - 16

- 4x - 6x + 24 = - 16

- 10x + 24 = - 16 ( subtract 24 from both sides )

- 10x = - 40 ( divide both sides by - 10 )

x = 4

substitute x = 4 into (1) for corresponding value of y

y = 4 - 4 = 0

solution is (4, 0)

You might be interested in

A penguin walks 15 feet in 9 seconds.

shtirl [24]

Answer:

12 seconds.

Step-by-step explanation:

If you put it like 15/9 = 20/x, then cross multiply and divide you do 9 times 20 you get 180, then you divide 180 by 15 and you get 12. Hope this helps!

4 0

3 years ago

Read 2 more answers

Can someone please help me

natita [175]

Tricky one because they're asking for C not x.

2x + 2x + 6x = 180

10x = 180

x = 18

C = 2x = 36

Last one

4 0

4 years ago

Kesley is thinking of a number. She says that it’s the sum of a number and nine. Multiplied by 2/3, is equal to -18.

Aliun [14]

Answer:

Only the firsts and fourth choices ( $\frac{2}{3}(x+9)=-18$ and $\frac{2}{3}x+6=-18$ )

Step-by-step explanation:

Turn the equation into words:

"A number plus 9"

$(x+9)$

"Multiplied by $\frac{2}{3}$ "

$\frac{2}{3} (x+9)$

"Is equals to -18"

$\frac{2}{3}(x+9)=-18$

Distribute to find the second equation:

$\frac{2}{3}(x+9)=-18\\\frac{2}{3}x+6=-18$

7 0

3 years ago

Please help.............

hodyreva [135]

Answer:

The answer is 4

8 0

2 years ago

Read 2 more answers

A chef uses 1/2 cup of tomatoes for every 1/8 cup of onions to make salsa. How many cups of onions will the chef need for 1 cup

DedPeter [7]

Answer:

0.25cups

Step-by-step explanation:

if it is 1 cup then we are doubling the amount of onions so

1/8 x 2= 1/4= 0.25cups

6 0

3 years ago