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Papessa [141]
1 year ago
9

4. Use the graph for the following: Please answer Picture is included

Mathematics
1 answer:
sergiy2304 [10]1 year ago
6 0

Answer:

(a) 9

(b) -2

Step-by-step explanation:

it is very important to start by finding the equation of the line then substitute in some values.

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Luis wants to buy a skateboard that usually sells for $79.08. All merchandise is discounted by 12%. What is the total cost of th
FrozenT [24]

Answer:

$74.96

Step-by-step explanation:

$79.80 × 0.12 = 9.576 (discount)

$79.80 - $9.576 = $70.224

$70.224 × 0.0675 = 4.74012 (add for sales tax)

$70.224 + $4.74012 = $74.96412

8 0
3 years ago
Eighty, decreased by three times a
Marina86 [1]

Answer:

The number is 9.

Step-by-step explanation:

Lets write this as an equation first. We'll substitute the number for the variable <em>x</em>.

80 - 3x = 5x + 8

First, let's add 3x to both sides.

80 - 3x + 3x = 5x + 3x + 8

80 = 8x + 8

Next, let's subtract 8 from both sides.

80 - 8 = 8x + 8 - 8

72 = 8x

Finally, let's divide both sides by 8.

72/8 = 8x/8

9 = x

<em>"x" is 9.</em>

<em>So the secret number is 9.</em>

P.S.

This is my first answer to a Brainly question so please don't complain!

6 0
3 years ago
a $3 500.00 principal earns 3 interest compounded semiannually after 20 yeara what is the balance in the account
Amiraneli [1.4K]
A=3,500×(1+0.03÷2)^(2×20)
A=6,349.06
5 0
3 years ago
I need major help with 3 and 4 PLEASE
Westkost [7]

Answer:

I answered 3 (your recent question)

The answer to 4 is C

Step-by-step explanation:

MRQL is the plane on the right hand side.

Lines parallel to that are: JK, NP, JN, and KP.

Thus the correct answer is C.

5 0
3 years ago
What is another name for the set of all x-values from its graph
12345 [234]
For functions, it's solutions.
7 0
3 years ago
Read 2 more answers
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