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tresset_1 [31]
3 years ago
14

What is 2x - 3 for x = 4.

Mathematics
2 answers:
MrRissso [65]3 years ago
6 0

Answer:

Step-by-step explanation:

2x - 3

2(4) - 3

8 - 3

5

Yanka [14]3 years ago
5 0
Your answer will be 5 because 2x4=8 then take the 8-3 will give you 5
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The sum of two numbers is 12. the productof those same numbers is -64. Find the numbers
krok68 [10]
Let the first number be A. and the second number B.
A + B=12-------equation1 and
A ×B =-64------eqn2

from eqn1,
A =12 - B
so put A=12-B into eqn 2

(12-B) ×B=-64
.12B-B^2=-64
B^2-12B-64=0
now use calculator to find the answer.
u will get two answers, but u haven't finished yet. if B is = X,
put Xinto A=12-B
to find the value of A.
and so the same for the second number.
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4 years ago
What is k(3) for the function k(n) = 4n to the 2 power?<br> A. 36 <br> B. 24<br> C. 10 <br> D. 49
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B because 3*4 equals 12
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slamgirl [31]

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7 0
3 years ago
Evaluate Expressions
iren [92.7K]
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• Hari bought 25 kg of pure ghee at Rs 180 per kg and 25 kg vanaspati ghee of Rs.80 per kg. He mixed both types of ghee and sold
Basile [38]

Step-by-step explanation:

as given,

hari bought,

amount of pure ghee he bought = 25 kg

cost of pure ghee per kg = Rs. 180

so, cost of 25 kg of pure ghee = 180 × 25 = Rs 4,500

amount of vanaspati ghee = 25 kg

cost of per kg of vanaspati ghee = Rs. 80

so, cost of 25 kg of vanaspati ghee = 80 × 25 = Rs. 2,000

he mixed both the ghee and got ( 25 + 25 ) = 50 kg of mixed ghee.

he sold them in cost = Rs. 150 per kg

so, total SP of mixed ghee = 150 × 50 = Rs. 7,500

so,

total CP = ( 4500 + 2000 ) = Rs. 6,500

total SP = Rs. 7,500

so,

Profit = SP - CP

→ 7,500 - 6,500 = Rs. 1000

Profit / gain = ( gain × 100 / CP)

→ (1000 × 100 / 6,500 )

→ 1000/65 = 15.38 ( approx.)

therefore, it's a profit of 15.38%.

<em>hope</em><em> this</em><em> answer</em><em> helps</em><em> you</em><em> dear</em><em>!</em><em> </em><em>and </em><em>may </em><em>u</em><em> have</em><em> a</em><em> great</em><em> day</em><em> ahead</em><em>!</em><em> </em><em>take </em><em>care!</em>

8 0
3 years ago
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