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2 years ago

Brainliest to correct quickly

Mathematics

2 answers:

neonofarm [45]2 years ago

8 0

Tbh, they are in the correct order!

Sliva [168]2 years ago

6 0

-10.76, -10, 10.65 is the answer

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-3x+4y=7 y=3x-5 I NEED HELP PL Z HELP ME

andrew-mc [135]

$- 3x + 4y = 7 \\ y = 3x - 5$

[Substitute the given value of y into the first equation]

$- 3x + 4 \times (3x - 5) = 7$

[Distribute 4 through the parentheses]

$- 3x + 12x - 20 = 7$

[Collect like terms]

$9x - 20 = 7$

[Move the constant to the right-hand side and change its sign]

$9x = 7 + 20$

[Add the numbers]

$9x = 27$

[Divide both sides of the equation by 9]

$x = 3$

[Substitute the given value of x into the second equation]

$y = 3 \times 3 - 5$

[Multiply the numbers]

$y = 9 - 5$

[Subtract the numbers]

$y = 4$

[The possible solution of the system is the ordered pair (x,y)]

$(x,y)=(3,4)$

3 0

2 years ago

Describe the error made when converting the equation to vertex form.

ale4655 [162]

Answer:

adding 36

Step-by-step explanation:

should be:

y-27=x²-12x

+12 +12

y-15=x²+x

y-15=x³

+15 +15

y=15x³

3 0

2 years ago

Jeremy swims for 5 3/5 kilometers in a 7 Day period. she swims the same distance each day. what distance does he swim in each da

disa [49]

Answer:

Step-by-step explanation:

You turn 5 3/5 into an improper fraction, to do that you do 5 x 5 = 25 then 25 + 3 = 28/5

so in a 7 day period she swims 5.6 kilometers. So you have to do 5.6/7 = 0.8

So it would be 0.8 kilometers in a day which is 4/5 kilometers so I don't know if the answers were just wrong?

5 0

3 years ago

Adam has some candy to give to his three children. He first took seven pieces for himself and then evenly divided the rest among

kompoz [17]

2 candies for each kid

explanation- if 6+7= 13 then there is 6 kids and 6 divided by 3 kids is 2 candies

4 0

3 years ago

Read 2 more answers

How does the length of the diameter of a circle relate to the length of the radius of that same circle

djyliett [7]

The diameter is twice as big as the radius

7 0

2 years ago