Exchange rates help you to know ____.

when it is best to travel

how much your currency is worth in another currency

what other economies think of your money

when to exchange your money

Step-by-step explanation:

1. The best way to solve this one would be elimination

  Both the equations have the same term, 5y

  Since neither variable is isolated, it wouldn't be easy to use the method of substitution

2. Both the equations only have x or y

   SInce neither of the equations has both the variables, substitution is impossible

3. Same as 1, just that you would need to multiple one of the equations by a certain number to create equal terms to make elimination possible

4. It's perfect!!! The y is isolated and it would be simple to just substitute the first equation into the 2nd (I hope you got what I meant)

4, is the correct answer

I hope this helps!!!

Answer:

4. y=2/3x+5

2x - 6y= -42

Step-by-step explanation:

Answer:

[tex]2^{7} -9(4*4+4)[/tex]

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

Basically 90 precent of 100 is 90

Answer:

Ground level would be 0cm

Step-by-step explanation:

Since the ground level is the starting point or the base it would be considered 0cm.

Answer:

1000-a=400

a = 400 - 1000

a= -600

Answer:

1000-a=400

Step-by-step explanation:

or, -a=400-1000

or,-a= -600

therefore - and - cutting then

a=600

Answer: x = 5

Step-by-step explanation:To solve this you first need to collect the like terms 6x-2x=7+3. Add those 4x=20. After that you need to divide both sides. Then you will get you solution.

Answer:

Step-by-step explanation:

6x−13=2x+7

Inverse operation:

6x into a negative then subtract it by 2x

2x - 6x = -4

Change 7 into a negative then subtract it by -13

-13 - 7 = -20

-20 = -4x

Divide:

-20 = -4x

_______

-4       -4

-20/-4 =  5

Answer:

5 = x or x = 5

Answer:

u will not fail i promise

Step-by-step explanation:

and the answer is the first becz we have to see the difference in arthimatic terms

Answer:

product

Step-by-step explanation: product means solution of two thingies being multiplied with each other i think

Answer:

8 hr to read 288 pages

Step-by-step explanation:

First find pages per hour so divide 72 pages by 2 hours to find per hour.

72/2 = 36 pageper hr

288 divided by 36 pages per hour is 8

Answer:

meow

Step-by-step explanation:

Step-by-step explanation:

2^400=2^(2×200)

2^(2×200) =[2^(2) ]^200

Now, [2^(2) ]^200=4^200

The power  of 2 in 400! is 397.

Let p is the prime number whose power is to be found

Let n is the factorial number then

p in n! = (n /p) + (n/p²) +(n/p³) + .......

until Numerator < Denominator

and after division only the integer part is taken

Therefore to determine the power of 2 in 400!

2 in 400! = (400 /2) + ( 400 /2²) + (400 /2³) +(400 /2⁴) +(400 /2⁵) +(400 /2⁶) +(400 /2⁷) +(400 /2⁸) + above this N < D

2 in 400! = 200 +100 +50+25+12+6+3+1

2 in 400 = 397

Therefore the power  of 2 in 400! is 397.

To know more about power of prime in Factorial

https://brainly.com/question/4680412

#SPJ2

Answer:

Step-by-step explanation:

like terms are 5c and 12c because both have the same variable, c

Answer:

The terms 5c and 12c are like terms. They can both be added.

Step-by-step explanation:

It could be any number the variable has to stay the same and if there is none, it can’t be paired. Also watch out for problems like 12c + 5c^2. THey don’t have the same variable due to th ^2

Answer:

Positive: (-2,1)

Negative: (-∞,-2) U (1,∞)

Step-by-step explanation:

The graph of the function f(x) is given in the figure. We can see some points like (-2,0), (-1,1), (2,-2), and many others.

Note the second value of each point (the value of y) is positive or negative. When it's positive, the graph is above the x-axis, when it's negative, the graph is below the x-axis. When it's 0, the graph crosses the x-axis.

To find the intervals of x where the function is positive, we only have to look into the zone where the graph is above the x-axis. It can be identified as the interval (-2,1).

Similarly, the function is negative in the interval (-∞,-2) U (1,∞)

The function f(x) is positive in the interval [-2, 1].

The function f(x) is negative the interval (-∞, -2) U (1, ∞).

The positive regions of a function f(x) are those intervals where the function is above the x-axis. It is where the y-values are positive (not zero).

To find the intervals of x where the function is positive,

In the interval [-2, 1] , the function f(x) is positive.

The negative regions of a function f(x) are those intervals where the function is below the x-axis. It is where the y-values are negative (not zero).

In the interval (-∞,-2) U (1,∞) , the function f(x) is negative.

y-values that are on the x-axis are neither positive nor negative. The x-axis is where y = 0.

when y = 0, x = -2, 1

Therefore, the function f(x) is positive in the interval [-2, 1] and negative in the interval (-∞,-2) U (1,∞).

For more information:

https://brainly.com/question/5601788

Answer:

8/13

Step-by-step explanation:

(−4,−4);(9,4)

(x1,y1)=(−4,−4)

(x2,y2)=(9,4)

Use the slope formula:

m=

y2−y1

x2−x1

=

4−−4

9−−4

Answer: 8/13

Step-by-step explanation:

[tex]m = \frac{y_{2}-y_{1} }{x_{2} -x_{1} }[/tex]

[tex]m = \frac{4 -(-4) }{9-(-4) }[/tex]

[tex]m = \frac{4 +4 }{9+4 }= m = \frac{8}{13 }[/tex]

Slope is 8/13

Answer: $6.45

Step-by-step explanation: Since 1 pound is $2.58, and we need to find out how much is 2.5 pounds, we can just multiply 2.58 by 2.5. Should be simple for you. Hope this helps. :)

Answer:

the greatest common factor of the two numbers is 1

Step-by-step explanation:

Answer:

GCF of 43 and 81 = 1

there is no way to multiply the numbers. Only 1 x 43 and 81 is a thing.

You are welcome

Answer:

Step-by-step explanation:

do 700/20

700/20 = $35 each

hope this helps <3

Answer:

35

Step-by-step explanation:

700/20 = answer

20 tickets: $700

divide by 20 on both sides to get price of one ticket/ unit price

1 ticket: $700/20

1 ticket: 35!

Answer:

a)

c)

...................

Answer:

39 sweets

Step-by-step explanation:

the sum of the ratio is

1+4+4= 9

to find the number of sweets shared we say

1/9*X=13 sweets

X=9*13

X=117

therefore Gavin and jim will share equal number of sweets

117-13

104 sweets. Jim gets 52 while Gavin gets 52 sweets.

How many more sweets does Gavin get over Stephen?​

52-13

Gavin get 39 more sweets over Stephen. I hope that helps

Answer:

c=10

Step-by-step explanation:

First combine like terms by doing 3c-4c to get -1c-5=-15. Then add 5 to both sides to get -1c=-10. Then divide by -1 on both sides to get c = 10

Answer:

The second option to the right on top.

Step-by-step explanation:

If you rotate something counterclockwise, you basically flip it left. And since it is 90° counterclockwise, it ends up in the first quadrant, and in the exact way  it is in the second option.

(hope this helps!)

Answer:

70

Step-by-step explanation:

if we count from 1 to 100 we will come across 10 7's

Answer:

Assuming you meant divide instead of equal it is 4 (Answer C)

Step-by-step explanation:

Answer:

First one is 42 and the second one is 48.

Step-by-step explanation:

Start with parentheses. I'll use the first one as an example. 3 x 7 is 21. Now that the parentheses are done, multiply it by whatever's left. 21 x 2, that's 42. For the other one, 2 x 3 is 6, x 7, is 48. Have a good day :)

Answer: -7

Step-by-step explanation:

Answer:

-7

Step-by-step explanation:

Answer:Sorry but none where c there e but no c .

But it would be 16c +2f +13 .

Step-by-step explanation:you need to combine like terms

which are 13c +3c =16c and 9f- 7f=2f and 15-2 =13 .

Hope it helps .

Answer:

- 11 i think

Step-by-step explanation:

Im not aure but let ssee if someone will help

9514 1404 393

Answer:

  y = 4x +3

Step-by-step explanation:

The slope formula can be used to find the slope:

  m = (y2 -y1)/(x2 -x1)

Using the first two lines of the table, we find the slope to be ...

  m = (11 -7)/(2 -1) = 4/1 = 4

__

The y-intercept can be found from the relation ...

  b = y -mx

Using the slope we found, and the first line of the table, we find the intercept to be ...

  b = 7 -4(1) = 3

__

Then the equation is ...

  y = mx +b . . . . . . slope-intercept form of the equation for a line

  y = 4x +3

- least common multiple of 7, 3, 2 = 42

Answer:

42

Step-by-step explanation:

These are all coprime, so the lcm is 7 * 3 * 2 = 21 * 2 = 42

5 star, thanks, and brainliest if helpful!

Answer:

it's answer is y = + √x - 1 Yes

Step-by-step explanation:

Hope it will help :)❤