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mariarad [96]
2 years ago
5

Please help me w my homework:)

Mathematics
1 answer:
Vesna [10]2 years ago
6 0

Answer:

12.5

Step-by-step explanation:

7.5+5=12

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Does this look correct?
Neko [114]
That is not correct.  I will help you.  Begin by subtracting the 9x from both sides, like this:  9x - 9x + 2y = 6 - 9x.  That simplifies to 2y = -9x + 6.  Now divide both sides by 2 to get y all alone, like this:  \frac{2y}{2}=- \frac{9}{2}x+ \frac{6}{2}.  That reduces down to y=- \frac{9}{2}x+3.  That is slope-intercept form.  y = mx + b.
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How do I simplify this by combining like terms
pickupchik [31]
You would simplify this expression by adding the coefficients 14 and -5.
14x^{2} -5^{2}\\ 9x^{2}
7 0
3 years ago
Kaya's family spends $105 to rent a boat for 7 days. The total cost, c, of the boat rental is proportional to the number of days
Elza [17]

Answer:

c=15d

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=\frac{y}{x} or y=kx

Let

c ----> the total cost of the boat rental

d ---> is the number of days, the family rents the boat

we know that

Kaya's family spends $105 to rent a boat for 7 days

so

For d=7 days, c=$105

Find the value of the constant of proportionality k

k=\frac{c}{d}

substitute the given values

k=\frac{105}{7}=\$15\ per\ day

therefore

The linear direct equation is equal to

c=15d

8 0
3 years ago
How to find the value of x so the polygons have the same perimeter
Scorpion4ik [409]
I hope this helps you

6 0
3 years ago
Read 2 more answers
How do I work this out and explain how
Sav [38]

80* 4/5

Cross out 80 and 5

You can divide by 5 for both of the numbers

80/5=16

5/5=1

16*4= 64

Answer is 64

4 0
3 years ago
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