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Kipish [7]
3 years ago
12

Jake bought a mountain bike on sale. He saved $72 on the bike,

Mathematics
1 answer:
scoundrel [369]3 years ago
6 0
15%. 480-72=408
480x15%= 72
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The mean of four consecutive even numbers is 15. The greatest of these numbers is a1. The least of these numbers is a2.
skad [1K]
X + (x + 2) + ( x + 4) + (x + 6)
-----------------------------------     = 15
                   4

4x + 12
---------    = 15
    4

Multiply by 4 on both sides

4x + 12 = 60
subtract 12 from both sides
4x = 48
divide by 4 on each side
x = 12
x + 2 = 14
x + 4 = 16
x + 6 = 18
6 0
3 years ago
The sum of two non-zero numbers a and b equals the sum of their reciprocals. If a+b≠0, what is the product of the two numbers?
Vadim26 [7]

Answer:

ab = 1

Step-by-step explanation:

A Reciprocal of a number is a number which when multiplied by the original number yields the multiplicative number, 1.

So the reciprocal of x would be x⁻¹ or ¹⁄ₓ

The information we are given states that the sum of the two non-zero numbers a and b equals the sum of their reciprocals.

So we can write this into an equation and solve,

(See image)

Once we solve, we get the equation (ab-1)(a+b) = 0

We are given info that a+b≠0

So for the above equation to be true, ab-1 has to equal 0

For <em>this</em> to be true, the product ab must equal 1

7 0
3 years ago
Someone please help me!!!!!
jolli1 [7]

Here is your answer wish you good luck

6 0
2 years ago
Let g(x) = -x2 + x. Find g(-10).
Inessa05 [86]

Answer:

10

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A piece of wire is 30 m long. What will be the length of each side if the wire is used to form
Mariulka [41]

Answer:

7.5 m

10 m

Step-by-step explanation:

i) 30 m ÷ 4 = 7.5m

iii) 30m ÷ 3 = 10m

7 0
2 years ago
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