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4 years ago

What point the equation

Mathematics

2 answers:

Maslowich4 years ago

3 0

Answer:

The Answer to the question is C

Step-by-step explanation:

vredina [299]4 years ago

3 0

Answer:

Step-by-step explanation:

To find which point satisfies the equation substitute the coordinates of each point into the left side of the equation and if this value is equal to the right side then it satisfies the equation

A(1, 4)

(2 × 1) + (3 × 4) = 2 + 12 = 14 ≠ 8 ← does not satisfy equation

B (2, 2)

(2 × 2) + (3 × 2) = 4 + 6 = 10 ≠ 8 ← does not satisfy equation

C (- 1, 3)

(2 × - 1) + (3 × 3) = - 2 + 9 = 7 ← does not satisfy equation

D (- 2, 4)

(2 × - 2) + (3 × 4) = - 4 + 12 = 8 ← satisfies the equation

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Find the solution to the system of equations: x + 3y = 7<br> and 2x + 4y = 8

Lelechka [254]

Answer:

Point Form:

( − 2 , 3 )

Equation Form:

x = − 2 , y = 3

Step-by-step explanation:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

5 0

4 years ago

Read 2 more answers

At the holiday valley ski resort, skis cost $16 to rent and snowboards cost $19. If 28 people rented on a certain day and the re

trapecia [35]

Answer:

$18$ skis and $10$ snowboards were rented.

Step-by-step explanation:

Let the number of skis rented be $x$ and the number of snowboards rented be $y$ .

If a total of $28$ people rented on a certain day, then the total number of skis and snowboards rented that particular day is also $28$ .

This gives us the equation

$x+y=28...eqn(1)$ .

If skis cost $ $16$ , then $x$ number of skis cost $ $16x$ .

If snowboards cost $ $19$ , then $y$ number of snowboards cost $ $19y$ .

The total cost will give us another equation,

$16x+19y=478...eqn(2)$

From equation (1),

$y=28-x...eqn(3)$ .

We put equation (3) into equation (2) to get,

$16x+19(28-x)=478$

We expand the brackets to obtain,

$16x+532-19x=478$

We group like terms to get,

$16x-19x=478-532$

This implies that,

$-3x=-54$

We divide both sides by $-3$ to get,

$x=18$

We put $x=18$ into equation (3) to get,

$y=28-18$

$y=10$

Therefore $18$ skis and $10$ snowboards were rented.

7 0

4 years ago

There're some old video games you sell on Ebay for $6, $7 and $9. The titles include " The Pirates", "Under the sea" and "The dr

Semenov [28]

Answer:

2/9

Step-by-step explanation:

lets create a sample space

the pirates can be sold for $7 $6 or $9

6 7 9

under the sea can be sold for $6 $7 or $9

6, 7, 9

driving test can be sold for $6 $7 or $9

6, 7, 9

here are all the combinations:

p,6

p,7

p,9

s,6

s,7

s,9

d,6

d,7

d,9

since out of 9 combinations driving test is the only one that is not water related lets look at that. There are only 2 combinations of driving test which are less than or equal to $7, (d,7 and d,6) hence the probability of selling no water games for less than $7 is 2/9

3 0

4 years ago

Read 2 more answers

Answer please asap and explanation would be appreciated

drek231 [11]

The answer is 120 for sure, I believe

4 0

3 years ago

Jason's business computers need servicing. The expression 81x + 108 represents a contractor's total charges in dollars for fixin

kolbaska11 [484]

Answer:

2 hours