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4 years ago

Martina has

Mathematics

2 answers:

Alla [95]4 years ago

8 0

6+5+2=13. There are 13 tennis balls in each bag. There are 3 bags. 13x3=39. Martina has 39 tennis balls in all.

muminat4 years ago

5 0

Answer:

39 tennis balls

Step-by-step explanation:

number of balls in each bag:

6 pink
5 yellow
2 white

thus, in total, one bag has: 6 + 5 +2 = 13 balls.

And we are told that she has 3 of these bags, so we must multiply the 3 bags by the 13 balls each bag has:

total tennis balls = 3*13

total tennis balls = 39

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In the standard (x,y) coordinate plane, what is the area of the circle x^2 + y^2 =169?

schepotkina [342]

Answer:

169π

Step-by-step explanation:

circle eq: (x-a)²+(y-b)²=r², where (a,b) is center and r is radius

r²=169

r = ±13

since a radius length must be positive, r = +13, not -13

A of circle: πr²

r = 13

169π

given that the circle eq has r², you could've noticed that you can take the constant in the circle eq and multiply that by π to get the same answer

6 0

4 years ago

Will give brainliest if correct!

Maslowich

Answer:

y=2x+500

y=-3x+450

Step-by-step explanation:

3 0

3 years ago

Estimate the number of pints in 455 ounces

klasskru [66]

Well,

I will simply round up to 460.

8 oz. = 1 c.
2 c. = 1 pt.
16 oz. = 1 pt.

$\frac{460}{16} --> \frac{2*2*5*23}{2*2*2*2} -->$
$\frac{5*23}{2*2} \ or\ \frac{115}{4}\ or\ 28 \frac{3}{4} \ or\ 28.75\ pt.$

5 0

3 years ago

Greta wants to make 5 pounds of a nut mix using peanuts and cashews. Her budget requires the mixture to cost her $6 per pound. P

Vinil7 [7]

Answer:

3 pounds of peanuts and 2 pounds of cashews

Step-by-step explanation:

Let x be the pounds of peanuts and y be the pounds of cashews

Greta wants to make 5 pounds of a nut mix using peanuts and cashews.

So, $x+y=5$ ----- A

Cost of 1 pound of peanuts = $4

Cost of x pounds of peanuts = 4x

Cost of 1 pound of cashews = $9

Cost of y pounds of cashews = 9y

Her budget requires the mixture to cost her $6 per pound

So, cost of mixture of x pounds of peanuts and y pounds of cashews is 6(x+y)

So, $4x+9y=6(x+y)$ --- B

Plot A and B

$x+y=5$ ---Blue

$4x+9x=6(x+y)$ ---Green

Refer the attached figure

Intersection point = (x,y)=(3,2)

Hence she should use 3 pounds of peanuts and 2 pounds of cashews

6 0

3 years ago

How is this possible? Explain and list the two different endpoints.

balandron [24]

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4 0

3 years ago