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creativ13 [48]
3 years ago
14

Solve the simultaneous equations7x + 2y = 223x + 4y = 11​

Mathematics
1 answer:
TiliK225 [7]3 years ago
7 0

I used Elimination method

x =3

y = 1/10

Hope it helps

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Find the solutions <br> x^2=16x-28
ioda
Minus 16x both sides and add 28 to both sides
x^2-16x+28=0
factor
hmm, what 2 numbers multiply to 28 and add to -16
hmm
1 and 28? nope
2 and 14? yep
since middle term is negative and last tem is positive, both of the factors are negative

(x-14)(x-2)=0
set each to zero
x-14=0
x=14

x-2=0
x=2

x=2 and 14
7 0
3 years ago
Please Help me ASAP i need to turn it in, in like 10 min. Please answer the questions in the screenshot ill give u 20 points Tha
Delvig [45]

Answer:

for #1 its the 1st and 4th box

for # 2 it's 13.5 and 20.25

Step-by-step explanation:

1st box - 10 ÷ 5 = 2 and 25 ÷ 5 = 5

4th box - 10 x 2 = 20 and 25 x 2 = 50

you have to make sure that you do the same thing for both sides of the equation

6 x 2.25 = 13.5

9 x 2.25 = 20.25

Dilation is an enlarging or shrinking of a math figure using a specific scale factor

multiply your numbers by that given scale factor to give you your answer of option 2

hope this is right I'm not completely positive about the send one.

4 0
3 years ago
In golf, a score of 0 is called even par. A score of 2 under par is written as -2. A score of 4 over par is written as +4 or 4.
patriot [66]

6 under par is written as -6

2 over par is written as 2

even par is written as 0

even par is written as 0


Total score: add all the numbers together:

-6 + 2 + 0 + 0 = -4  ( 4 under par).

7 0
3 years ago
A box contains 13 red blocks, 8 orange blocks, 9 green blocks, and 10 blue blocks. Anna randomly chooses a block from the box.
Vinvika [58]
Im 90% sure its 0.21 

hope I helped

3 0
3 years ago
The sum of three consquetive odd number is 177. Find the numbers.
beks73 [17]

Answer:

57, 59, and 61.

Step-by-step explanation:

7 0
3 years ago
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