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algol [13]
3 years ago
11

Erik buys carrots and dip for a class snack. The carrots are $3.80, and the dip is$2.60. Erik has a coupon for 5% off his grocer

ies. He does not need to pay tax. He gives the cashier $20 How much change does he receive back?

Mathematics
2 answers:
Lilit [14]3 years ago
6 0
$3.80 + 2.60=$6.40 *.05=$5.08 

$20.00-$5.08=$14.92
Leya [2.2K]3 years ago
5 0
3.80+2.60=6.40$ money that erik need to pay
6.40$ x .05=.32 (.05 represent the 5% coupon)
6.40$ - .32=6.08subtract the percent of the coupon to find the total bill of erik
20$ - 6.08=13.92$ subtract the money that erik needs to the 20$ 
13.92$ would be the change that erik receive back
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2) In each polygon the sum of the external angles is 360°

3) S5= (5-2) 180 = 540° than  we can add up all angles

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3 years ago
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5 0
3 years ago
In ΔCDE, \text{m}\angle C = (4x-16)^{\circ}m∠C=(4x−16) ∘ , \text{m}\angle D = (6x-1)^{\circ}m∠D=(6x−1) ∘ , and \text{m}\angle E
borishaifa [10]

Answer:

m∠C = 44°

Step-by-step explanation:

In ΔCDE,

m∠C=(4x−16) ∘

m∠D=(6x−1) ∘

m∠E=(4x−13) ∘ .

The sum of angles in a triangle = 180°

Step 1

We solve for x

m∠C + m∠D + m∠E

(4x−16)° + (6x−1)° + (4x−13)° = 180°

4x - 16 + 6x - 1 + 4x - 13 = 180°

4x + 6x + 4x -16 - 1 - 13 = 180°

14x - 30 = 180°

14x = 180+ 30

14x = 210

x = 210/14

x = 15

Step 2

Find m∠C

m∠C = (4x−16)°

m∠C = (4 × 15 - 16)°

m∠C = (60 - 16)°

m∠C = 44°

3 0
3 years ago
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