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Mekhanik [1.2K]
3 years ago
8

Tiffany spent 3/5 of her money to buy begonias and 1/2 of the remaining money to buy peas. What part of her money did she spend

on peas?
Mathematics
1 answer:
Rufina [12.5K]3 years ago
6 0

Answer:

Tiffany spent 1/5 of her money on peas.

Step-by-step explanation:

5/5 is the whole.

She spent 3/5 so now you only have 2/5 left.

1/2 of 2/5 is 1/5.

So she spent 1/5 of her money on peas.

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melisa1 [442]

Answer: x = 63

Step-by-step explanation:

15/3 = 5

3 * 21 = 63

63/15 = 21/5

8 0
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Answer:

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Step-by-step explanation:

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Solve each system by substitution.<br> 5) 5x + 3y =-23<br> y = 4
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Answer:

(- 7, 4 )

Step-by-step explanation:

Given the 2 equations

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Substitute y = 4 directly into (1_

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3 years ago
A circle has centre (3,0) and radius 5. The line y = 2x + k intersects the circle in two points. Find the set
lara [203]

A circle with center (3,0) and radius 5 has equation

(x-3)^2+y^2=25 \iff x^2 + y^2- 6 x  = 16

If we substitute y=2x+k in this equation, we have

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This equation has two solutions (i.e. the line intersects the circle in two points) if and only if the determinant is greater than zero:

\Delta=b^2-4ac=(4k-6)^2-4\cdot 5\cdot (k^2-16)>0

The expression simplifies to

-4 (k^2 + 12 k - 89)>0 \iff k^2 + 12 k - 89

The solutions to the associated equation are

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So, the parabola is negative between the two solutions:

-6-5\sqrt{5}

8 0
3 years ago
classify the segment in each part below. only use the information given in the figure do not assume measures are equal unless th
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Step-by-step explanation:

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