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lina2011 [118]
3 years ago
5

If its total was $490 for the week, what was its average daily change?

Mathematics
2 answers:
g100num [7]3 years ago
5 0

Answer:

$70/day

Step-by-step explanation:

7 days = 490

1 day   =     X

Cross multiply

7X  =  490

Divide both sides by 7

X=70

zheka24 [161]3 years ago
4 0
$70/day because a week has seven days so 490 divided by 7 is 70
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if two fractions have the same denominator but different new Mary which fraction is greater? Give an example
german
It would be the one with the greater numerator 6/6 would be greater than 5/6
5 0
4 years ago
Help on how to figure this out
MakcuM [25]
6/3 = 6 divided by 3
= 2

12/6= 12 divided by 6
= 2

3 0
3 years ago
A bean plant grows at a constant rate for a month. After 10 days, the plant is 25 centimeters tall. After 20 days, the plant is
wariber [46]
Y = 2x + 5

If you take the height at 10 days, 25 centimeters, after 10 more days the height is 45 centimeters, meaning for those 10 extra days the been plant grown 20 centimeters. Since we're told the plant is growing at a constant rate, this shows the bean plant is growing 2 centimeters per day. We can represent this with y = 2x. (After 10 days, the bean plant will be 20 centimeters, after 20 days, the bean plant will be 40 centimeters, etc.)

However, this is not completely true yet. As you can see, after the first 10 days the plant is not 20 centimeter, it's 25 centimeters. We already know the rate in which the plant is changing, but now we need to find the height that the plant was originally, before it started growing.

After the first 10 days, the plant is 25 centimeters tall. Since we know that the plant is growing 2 centimeters per day, we can subtract 20 from 25 to find the original height of the bean plant.

25 - 20 = 5
The bean plant was originally 5 centimeters.

This makes our final equation y = 2x + 5.
2x is the slope, and 5 is the y intercept.

Hope this helps1!
5 0
3 years ago
10 points! How do I factor 8x^2-26x+15
Rufina [12.5K]
<h3><u>(2x - 5)(4x - 3)</u></h3>

The AC method, also known as splitting the middle, can be shown like this:

8x^2 - 26x + 15

<em><u>Check factors of 120.</u></em>

1 * 120

-1 * -120

2 * 60

-2 * -60

3 * 40

-3 * -40

5 * 24

-5 * -24

6 * 20

-6 * -20 (these factors, when added together, are equal to the middle term, and thus splitting the middle term is possible.)

<em><u>Split the middle term.</u></em>

8x^2 - 6x - 20x + 15

<em><u>Group in terms of 2.</u></em>

(8x^2 - 6x) - (20x + 15)

<em><u>Factor each binomial.</u></em>

2x(4x - 3) - 5(4x - 3)

<em><u>Rearrange the terms.</u></em>

(2x - 5)(4x - 3)

6 0
3 years ago
Read 2 more answers
Pls help me with this question ASAP
WINSTONCH [101]

Answer:

8

Step-by-step explanation:

(3+5)^2/8=(8)^2/8=64/8=8

5 0
3 years ago
Read 2 more answers
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