Need help on this becOuse I don't understand

Mathematics

2 answers:

joja [24]3 years ago

8 0

Six pounds of rice is $18 homie

gavmur [86]3 years ago

3 0

6 is X and 18 is Y
This represents (6,18)
Under the 6 it says Pounds of rice bought. That means someone bought 6 pounds of rice.
Next to the 18 which is on the Y scale it says Cost for buying 6 pounds of rice. Which means the 6 Pounds of rice costs $18.

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Slope passing through the points of (3,-3) and (2,-5)

umka2103 [35]

Answer:

Use the slope formula (y2-y1)÷(x2-x1)

Step-by-step explanation:

(-5-(-3))÷2-3

= (-2.5,-1)

4 0

3 years ago

The price of an item yesterday was $60. Today, the price fell to $42. Find the percentage decrease.

oksian1 [2.3K]

Answer:

-30% or 30% decrease

Step-by-step explanation:

What's percentage decrease?

Percent decrease is the difference between the initial value and new value, indicating a loss of value.
The formula to find percent decrease is $\frac{NV-IV}{IV} * 100$ , where NV = new value and IV = initial value.

How do we solve this problem?

We know that the original value was $60, so that represents IV. Also, now that the price is $42, it represents NV.
Now, we plug in the values!
$\frac{42-60}{60} * 100$
$\frac{-18}{60} * 100$
$-\frac{3}{10} * 100$
$-3 * 10$
$-30$