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Afina-wow [57]
3 years ago
8

Roberta is thinking about joining the food co-op store. If she pays $10.00 to join, she will get 10% off on all the groceries sh

e buys there. How much must she buy before her savings equal her membership fee?
Mathematics
2 answers:
nikitadnepr [17]3 years ago
4 0
She has to buy $100.00 worth of groceries before her savings equals the membership fee.
nevsk [136]3 years ago
4 0

Answer:

She must buy groceries of worth $100.00

Step-by-step explanation:

The membership fees of food co-op store = $10.00

After joining Roberta will get 10% off on all the groceries she buys here.

She wants to buy items so that her savings must be equal to her membership fee.

Let the amount of groceries that she wants to buy be 'x'

Therefore, equation will be

10% × x = $10

0.10 × x = $10

x = 10 ÷ 0.10 = $100

Roberta must buy the items worth $100, so that her savings would be equal to her membership fee.

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Sati [7]

Answer:

  y = -3x

Step-by-step explanation:

It is easiest to try the answers for x=1.

  a) y = 1/-3 = -1/3 ≠ -3

  b) y = 1 ≠-3

  c) y = 3(1) = 3 ≠ -3

  d) y = -3(1) = -3 . . . . . this rule matches the table

8 0
2 years ago
Give the center, radius, and equation of the circle in the graph.
dexar [7]

Answer:

(x-2)^2+(y+3)^2=4

Step-by-step explanation:

  • A circle's equation consist on the following expression: (x-a)^2+(y-b)^2=r^2, where r is the magnitude of the radio, and (a,b) are the coordenates of the center of the circle.
  • In this case, a=2 and b= - 3, because the circle is centered in (x,y)=(2, - 3).
  • The radio, which is the distance between the center of the radio to any point in its border, equals r=2 (because of the scale of the graphic, in this case two squares of the grid equal 2 units, then r=2).
  • Finally, using the previous information to replace in the equation (x-2)^2+(y+3)^2=4, where the fact that r=2 and 2^2=4 was used.
3 0
3 years ago
One number is 2 less than a second number. Twice the second number is 5 less than 3 times the first. Find the two numbers.
Evgen [1.6K]

Answer:

9 and 11  

Step-by-step explanation:

First number = x -2

Second number = x

  and   2x = 3(x-2)  - 5

            2x = 3x - 6 - 5

             x = 11

              first number = 11-2 = 9

8 0
2 years ago
Round 75391 to the nearest ten
cluponka [151]
75390
7 is in the ten thousand place
5 is in the thousand place
3 is in the hundreds place
9 is in the tens place
1 is in the ones place
8 0
3 years ago
Read 2 more answers
What is the answer to 1n-10=5/6-7-1/3n
navik [9.2K]
1*n-10 = (5/6)*n-((1/3)*n)-7 // - (5/6)*n-((1/3)*n)-7

1*n-((5/6)*n)+(1/3)*n-10+7 = 0

n+(-5/6)*n+(1/3)*n-10+7 = 0

1/2*n-3 = 0 // + 3

1/2*n = 3 // : 1/2

n = 3/1/2

n = 6

That's just in case you had to show your work lol^^
3 0
3 years ago
Read 2 more answers
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