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BabaBlast [244]
2 years ago
15

A pie chart is to be drawn for Cathy’s spending.

Mathematics
2 answers:
Vesnalui [34]2 years ago
4 0

Step-by-step explanation

Alekssandra [29.7K]2 years ago
3 0

Answer:

54°

Step-by-step explanation:

$800 is 360° of a pie chart

$120 is ?° of the pie chart

?° = (360*120)/800 = 54°

*if you need the answer to be in radiants

(54*π) /180 = 0.942478 rad

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Someone help me with this ASAP please I’m being timed !
OLEGan [10]

Answer:

snacks were $2.50

ticket was $8.75

8 0
3 years ago
HELP PLEASE! PRE-ALGEBRA!
serious [3.7K]

Answer:

Triangle ABC is similar to triangle A prime B prime C prime., because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 2. and then rotating it about the origin by 180 degrees

Step-by-step explanation:

Step 1: Dilation by a scale factor of 1/2.

A point (x, y) is sent to (1/2 x, 1/2 y).

A(2, 2) ---> (1, 1)

B(2, 10) ---> (1, 5)

C(8, 12) ---> (4, 6)

Step 2: Rotate about the origin 180 degrees

A point (x, y) is sent to (-x, -y).

(1, 6) --->  A'(-1, -1)

(1, 5) --->  B'(-1, -5)

(4, 6) ---> C'(-4, -6)

6 0
3 years ago
Translate the following into an algebraic expression: The number that is 40% more than five more than a number a.
cricket20 [7]

Answer:

The translation would be

X = 40% + 5 + A

Step-by-step explanation:

First, translate the words, is, more than and 'the number'.

Is means equals (=).

More Than means plus (+).

'the number' can be x.

Now, put it together.

X(The Number) =(Is) 40% +(more than) 5 +(more than) A(a number)

I hope this helps!!

5 0
3 years ago
Andre and Alina are each saving money. Andre starts with $100 in a savings account and adds five dollars per week Elena starts w
REY [17]

Answer:

6 weeks

Step-by-step explanation:

From the question:

Let us represent the number of weeks as x

Andre and Alina are each saving money.

For Andre:

Andre starts with $100 in a savings account and adds five dollars per week

$100 + $5 × x

= 100 + 5x

For Elena

Elena starts with $10 in her savings account and add $20 each week

$10 + $20 ×x

= 10 + 20x

The next step is to equate both algebraic expression for Andre and Elena together

Hence:

100 + 5x = 10 + 20x

Collect like terms

100 - 10 = 20x - 5x

90 = 15x

x = 90/15

x = 6 weeks

Hence, after 6 weeks Andre and Elena would have the same amount of money in their savings account.

7 0
3 years ago
What is the equation of a parabola with a focus (2,4) and directrix y = 0?
svet-max [94.6K]

Answer:

The equation of the parabola is (x-2)^2 =8(y-2)

Step-by-step explanation:

Given focus is (2,4) and the directrix is y=0 so the parabola axis is parallel to y- axis.

Focus is (α,β+a) and the directrix is of the form y = β-a

so given  focus is (2,4) compare (α,β+a)

                  here β+a = 4 and a=2 and β=2

now given directrix y = β-a = 2-2 = 0

now the general parabola is (x-α)^2 =4a(y-β) ...(1)

now substitute α =2 ,β=2 and a=2 above equation

The equation of the parabola is (x-2)^2 =8(y-2)

6 0
3 years ago
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