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sergij07 [2.7K]
3 years ago
14

I NEED HELP PLEASE HELP ME

Mathematics
1 answer:
alex41 [277]3 years ago
6 0

Answer:

Length should be 15 cm and width should be 5 cm

Step-by-step explanation:

5 * 3 = 15

15+15+5+5=40

:)

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The difference of 5 times a number and 7 equals 53.<br><br> Translate
Contact [7]

Answer:

difference means subtraction operation.

let the number be n :

(5 \times n) - 7 = 53

arrange the equation:

5n - 7 = 53

______________________________________

---------------------------♦ end ♦----------------------------------

further more [ getting value of n ]

add 7 on all sides:

(5n - 7) + 7 = 53 + 7 \\ 5n = 60

divide all sides by 5:

\frac{5n}{5}  =  \frac{60}{5}  \\  \\ n = 12

7 0
3 years ago
John and his son are building a boxcar for a group competition. According to the rules of the competition, the length of the car
kozerog [31]

Answer:

x ≥ y + 2

0.50 (x) (x+3) + 2.25 (4) (y) ≤ 50

Step-by-step explanation:

x = width of the car

x+3 = length of the car

y = radius of the car

The width must be at least 2 inches greater than the radius, so:

x ≥ y + 2

The total cost must be no more than $50, so:

0.50 (x) (x+3) + 2.25 (4) (y) ≤ 50

6 0
4 years ago
What is the y intercept of the exponential function? f(x)= - 1/3 (3)^(x+3) -1
kobusy [5.1K]

Answer:

y- intercept = - 10 or (0, - 10 )

Step-by-step explanation:

to find the y-intercept, that is where the graph crosses the y- axis let x = 0 in the equation

f(0) = - \frac{1}{3} (3)³ - 1

     = - \frac{1}{3} × 27 - 1 = - 9 - 1 = - 10


5 0
4 years ago
Cody has $700 in a savings account that pays %4 simple interest. How much will he have in 1 year?
zloy xaker [14]

Answer:

<h2><em>In One Year Cody Will Have 12% Intrest</em></h2><h2>Step-by-step explanation:</h2>
7 0
3 years ago
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Factor 3x^3 + 27x^2 + 60x
nika2105 [10]

Answer: 3x(x+4)(x+5)

Step-by-step explanation:

8 0
3 years ago
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