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azamat
3 years ago
13

Marta has twice as much money as Heidi. Together they have $36. Write a system of equations that could be used to determine much

money each person has​
Mathematics
1 answer:
sdas [7]3 years ago
5 0
X + 2x = 36

3x = 36
/3
x = 12

Martha has $24 and Heidi has $12
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How do I answer A and B?
shusha [124]

Answer:

Step-by-step explanation:

a) We're working with the ratio 3:1

x:500

500/1 = 500

500 * 3 = 1,500

x = 1,500

She would need to use 1,500 mL of yellow ink.

b) We're working with the ratio 2:3

x:750

750/3 = 250

250 * 2 = 500

x = 500

She would need to use 500 mL of red ink.

You can check both of these by:

(a) 1,500/500 = 3/1 = 3 : 1 which is the ratio we're working with.

(b) 500/2 = 250

750/2 = 375

250 : 375

Then, divide both 250 and 375 by 125

250/125 = 2

375/125 = 3

We are then left with the ratio 2 : 3 which is the ratio we're working with.

4 0
3 years ago
HELP PLEASE FIND X AND SHOW YOUR WORK
PtichkaEL [24]

Answer:

34

Step-by-step explanation:

Straight lines are 180 degrees, so the angle inside of the triangle next to the 127, is 53 degrees. (180-127= 53)

So to find "x", we need to figure out what the full number is.

59+53 = 112.

180-112= 68.

Now that we have the degree of the full angle, we can make an equation to find x.

x*2 = 68

(Divide 2 from both sides to isolate the variable)

x = 34  

I hope this helped!

7 0
3 years ago
IM BEING TIMED, WILL GIVE 25 POINTS (NEEDED WITHIN THE NEXT 20 MINUTES The graph g(x)=x^3-x is shown. (idk how to screenshot, so
saveliy_v [14]

Answer:

The function is

f(x)=0.5x^3-3x^2+5.5x-2

The graph is attached.

Step-by-step explanation:

We have a function g(x) and we need to graph a new function that is function of g(x).

The final function is

f(x)=0.5\cdot g(x-2)+1

We start by calculating g(x-2):

g(x-2)=(x-2)^3-(x-2)\\\\g(x-2)=(x^3-6x^2+12x-8)-(x-2)\\\\g(x-2)=x^3-6x^2+11x-6

Then, we can calculate f(x) as:

f(x)=0.5\cdot g(x-2)+1\\\\g(x-2)=x^3-6x^2+11x-6\\\\\\f(x)=0.5(x^3-6x^2+11x-6)+1\\\\f(x)=0.5x^3-3x^2+5.5x-3+1\\\\\\f(x)=0.5x^3-3x^2+5.5x-2

5 0
3 years ago
Which expression uses the associative property to make it easier to evaluate 14(1/7x2/5)?
Dmitry_Shevchenko [17]

Answer:

A

Step-by-step explanation:

Associative property:

(a+b)+c=a+(b+c)

(a*b)*c=a*(b*c)

7 0
3 years ago
What are the diminshens of a cube with the volume of 216?
djyliett [7]
To answer this,f ind the cube root of 216:  It is 6.

The dimensions of the cube are 6 by 6 by 6.
5 0
4 years ago
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