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Marta_Voda [28]
3 years ago
7

If 4 more than 4 times a certain number is the same as 4 more than the product of 3 and 4, what is that number?

Mathematics
1 answer:
gtnhenbr [62]3 years ago
5 0

Answer: the number is 3

Step-by-step explanation:

Let the number be represented by x.

If 4 more than 4 times a certain number is the same as 4 more than the product of 3 and 4, it means that

4x + 4 = 4 + 3×4

4x + 4 = 4 + 12

4x + 4 = 16

Subtracting 4 from the left hand side and the right hand side of the equation, it becomes

4x + 4 - 4 = 16 - 4

4x = 12

Dividing the left hand side and the right hand side of the equation by 4, it becomes

x = 12/4 = 3

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allsm [11]
This means a has a value of 24.
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3 years ago
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What is the length of the unknown side of the right triangle? A right triangle with hypotenuse x and legs 7 and 24 7 24 25 31
arlik [135]

Answer:

X = 25

Step-by-step explanation:

To find the hypotenuse of a right triangle you use pythagorean theorm Where C = Hyp

A = Leg1

B = Leg 2

A^2 + B^2 = C^2

7^2 + 24 ^2 = x^2

49 +  576 = x^2

625 = X^2    (Square root both sides)

25 = x

-- Gage Millar, Algebra 1/2 tutor

8 0
2 years ago
Find the perimeter of this semi-circle with diameter, d = 39cm. Give your answer rounded to 1 DP.
deff fn [24]

Answer:

p=1/2*3.14+d

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Step-by-step explanation:

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3 0
2 years ago
2) Today, the price of a pack of pens costs $12. In 2000, the same pack of pens only cost $8. What is the percent of change? 3)
Alex787 [66]

Answer:

2)4 3)20 4)15

Step-by-step explanation:

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91 - 77

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3 years ago
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Chris buys 8 more Ninja Turtles than Star Wars action figures. The Ninja Turtles cost $7 each and the Star Wars cost $9 each. Wr
Natalka [10]

Answer:

Total Cost, C=$(16S +56)

Step-by-step explanation:

Chris buys 8 more Ninja Turtles than Star Wars action figures.

Cost of each Ninja Turtle = $7

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Let number of Star Wars bought = S

As per question statement, number of Ninja Turtles bought = S+8

Cost of 'S' number of Star Wars = Number of Star Wars bought \times cost of each Star Wars

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Total Cost of the purchase, C = 9S + (7S +56)

\Rightarrow C=\$(16S +56)

4 0
3 years ago
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