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Leto [7]
2 years ago
8

Plz put the work clearly plzz I really need these

Mathematics
1 answer:
Dmitrij [34]2 years ago
8 0

Answer:

m∠C = 26°

m∠D = 108°

m∠E = 46°

Step-by-step explanation:

Set up the equation adding the expressions together to equal 180 (sum of all angles in a triangle)

(2x) + (x+3) + (5x-7) = 180

Remove the parentheses

2x + x+ 3 + 5x - 7 = 180

Add like terms

8x - 3 -7 = 8x -4 = 180

8x - 4 = 180

Add 4 on each side to cancel it out on the right

8x - 4 = 180

     +4   = +4

8x = 184

Divide each side by 8 to get the variable by itself

8/8 =1    184/8 = 23

x = 23

Substitute x in eac expression

2x = 2(23) = 46°

x + 3 = 23 + 3 = 26°

5x - 7 = 5(23) - 7 = 115 -7 = 108

Chek it by adding all the degrees to make sure it equals 180

46 + 26 + 108 = 72 + 108 = 180

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3 years ago
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Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. She also earns a base salary
algol13

Danielle earned $969 last week if she sold $4,400 in electronics merchandise

<h3><u><em>Solution:</em></u></h3>

Given that, Danielle earns a 7.25% commission on everything she sells at the electronics store where she works.  

She also earns a base salary of $650 per week.  

We have to find how much did she earn last week if she sold $4,400 in electronics merchandise?  

Now, we know that, earned amount = base salary + commission

Given that she earns a 7.25% commission on everything she sells

<em><u>So commission earned for selling $ 4400 is given as:</u></em>

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Earned amount = base salary + commission = 650 + 319 = 969

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3 years ago
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