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2 years ago

You move up 5 units. You end at (3, 9). Where did you start?

Mathematics

1 answer:

IRINA_888 [86]2 years ago

4 0

Answer:

You started at (3, 4)

4 + 5 = 9, the only option to get there in this case.

factorized, 3 x 3(<em>x</em>) and replace for <em>y</em>.

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If m(nx2-y)/z = 5n , find the value of n when m = 6, x = -2, y = -3 and z = -5

Mila [183]

Answer:

-(18/49)=n or approximately n=-0.367

Step-by-step explanation:

our equation is: m(nx²-y)/z=5n in order to find n we need to substitute the values given in the question. when we substitute we get:

6*(n*(-2)²-(-3))/(-5)=5n

6(4n+3)/(-5)=5n (we distribute the 6 in the numerator)

24n+18/-5=5n (we multiply both sides by (-5))

24n+18=-25n (we subtract 24n from both sides)

18=-49n (divide both sides by (-49))

-(18/49)=n or approximately n=-0.367

6 0

3 years ago

(a) Find the value of xif 10, x and 30 are in A.P.

jekas [21]

Part A

<h3>Answer: x = 20</h3>

--------------------------------

Explanation:

AP = arithmetic progression, which is another way of saying arithmetic sequence.

Let d = common difference

first term = 10
second term = first+d = 10+d = x
third term = second+d = x+d = 30

Apply substitution like so

x+d = 30

10+d+d = 30 ... replaced x with 10+d

10+2d = 30

2d = 30-10

2d = 20

d = 20/2

d = 10 is the common difference

Therefore,

x = 10+d = 10+10 = 20

The AP {10,x,30} updates to {10,20,30}. We see the gap between terms is 10 units. All AP's have the same gap width between adjacent terms.

=============================================================

Part B

<h3>Answers: x = 10 and y = 14 </h3>

--------------------------------

Explanation:

We use the same ideas mentioned back in part A.

d = common difference = unknown for now

first term = 6
second term = first+d = 6+d = x
third term = second+d = x+d = (6+d)+d = 6+2d = y
fourth term = third+d = y+d = (6+2d)+d = 6+3d = 18

Hopefully you can see how each term builds up to form the next one. We'll solve that last equation like so

6+3d = 18

3d = 18-6

3d = 12

d = 12/3

d = 4

So we then can say:

x = 6+d = 6+4 = 10
y = 6+2d = 6+2(4) = 6+8 = 14

The arithmetic sequence {6,x,y,18} updates to {6,10,14,18}. There's a gap of 4 between each adjacent term.

6 0

3 years ago

An entrepreneur buys some microscopes. Each one cost $200 and resells online for $526. What is the mark-up percentage?

Dafna11 [192]

Answer:

326

Step-by-step explanation:

Given: Microscopes. Each one costs $200 and resells online for $526.

To find: What is the mark-up percentage?

Solution: Simply take the sales price minus the unit cost, and divide that number by the unit cost. Then, multiply by 100 to determine the markup percentage.

$526 - 200 = 326$

Net Profit Margin = 61.98%

Net Profit = $326.00

Profit Percentage = 163.00%

Find more here: brainly.com/question/23345732

6 0

3 years ago

Rate of change if a baby is 20 inches long at birth and 28 inches long at ten months

iris [78.8K]

Answer:

.8 inches for every month

Step-by-step explanation:

First subtract: $28-20=8$

Next divide by ten, $\frac{8}{10}=.8$

6 0

3 years ago

F(x) = x-3. Find the inverse of f(x).

lisov135 [29]

Answer:

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers