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kobusy [5.1K]
3 years ago
8

What value makes the equation true? 2(x-5)=20

Mathematics
1 answer:
SashulF [63]3 years ago
6 0

2(x-5)=20

Divide both sides by 2  (division of property equality)

x - 5 = 10

Add 5 to both sides     (addition of property equality)

x = 15

Answer

x = 15 is the solution

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Find the selling price of a $7.50 agenda book with a 15% discount.
Diano4ka-milaya [45]

Answer:

The selling price of the agenda book is $6.38 to the nearest cent.

Step-by-step explanation:

Assume that the cost price of the agenda book is 100%

∵ The discount is 15%

∵ The selling price = the cost price - discount amount

∴ The selling price = 100% - 15%

→ That means the selling price is 85% of the cost price

∵ The cost price = $7.50

∴ The selling price = 85% × 7.50

→ Change 85% to a number by divide it by 100

∴ The selling price = \frac{85}{100} × 7.50

∴ The selling price = 6.375

→ Round it to the nearest cent (2 d.p)

∴ The selling price = $6.38

∴ The selling price of the agenda book is $6.38 to the nearest cent.

8 0
3 years ago
5/6k=1/6 solve for k
Molodets [167]
5/6k = 1/6
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7 0
3 years ago
Read 2 more answers
Help please due soon
AfilCa [17]

Answer:

16

Step-by-step explanation:

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5 0
3 years ago
Help regular 7th grade math​
Reptile [31]

Answer:

Y = <u><em>5x</em></u> + <em><u>3</u></em>

Now for the other one if your asking is:

Y = <em><u>-12x</u></em> + <em><u>4</u></em>

<em><u /></em>

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3 0
3 years ago
If f(x+5)=x^+kx+30,k=
Vilka [71]

30 divided by 5 is 6, so the other term is (x+6). (x+5)(x+6) becomes x^2+11x+30, so k is equal to 11.


5 0
3 years ago
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