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MakcuM [25]
2 years ago
10

I need help with this plz

Mathematics
1 answer:
emmasim [6.3K]2 years ago
3 0

Answer:

x^{15}

Step-by-step explanation:

Distribute the ^3 on top

(27 x^{6} y^{-9})

distribute the ^ -9 on bottom, only to what is in the parenthesis

(27 x^{-9} y^{-9})

the 27's cross out, the y^{-9} 's cross out

x^{6}/ x^{-9} is left

move the  x^{-9} to the top of fraction to change its sign

x^{6} · x^{9} = x^{15}

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Find the value of x.
polet [3.4K]

Answer:

x = 20

Step-by-step explanation:

7x° + (x + 20)° = 180° (linear pair)

Solve for x

7x + x + 20 = 180

Add like terms

8x + 20 = 180

8x + 20 - 20 = 180 - 20

8x = 160

8x/8 = 160/8

x = 20

7 0
2 years ago
Dennis takes care of private swimming pools. He charges $50 to travel to a home and then $30 per hour. The equation t=50+30h mod
ICE Princess25 [194]

Answer:

(3, 140)

Step-by-step explanation:

If we have the equation t = 50 + 30h, we can substitute the value 3 as h to find the value of t.

t = 50 + 30(3)\\\\t = 50 + 90\\\\t = 140

So we know that the total cost is $140.

To represent this as an ordered pair, we need to take note that the independent variable (x) is the one that we change to get the result (y).

We changed h to get t, so h is the x and t is the y.

So it's represented as (3, 140).

Hope this helped!

6 0
3 years ago
Read 2 more answers
What is the length of line SR?<br> A. 9 units<br> B. 12 units<br> C. 15 units<br> D. 18 units
egoroff_w [7]
The answer is 12 units of the line sr
7 0
3 years ago
Read 2 more answers
- Trisha is making flags with 40 5/16 yards of fabric. If each flag requires 3 1/8 yards, how many flags can she make?​
Westkost [7]

Answer:

She can make 13 flags

Step-by-step explanation:

40 5/6 divided by 3 1/8

245/6 divided by 25/8

245/6 x 8/25

Use cancellation for a more simplified result

49/6 x 8/5

49/3 x 4/5 = 196/15 = 13 1/15

She can make 13 flags

4 0
2 years ago
Write an expression to show how much it costs per week to keep the 8 adults x where the number of pounds one adults in a day. Si
Nostrana [21]

Answer:

<h3>y = 56x</h3>

Step-by-step explanation:

Given the amount to keep one adult in a day to be x

Since 7 days = 1 week

Amount it will take to keep one adult for a week will be 7x

one adult = 7x pounds

To get the expression that show how much it costs per week to keep the 8 adults, we will say;

8 adults = y pounds

where y is the required amount

Solving both expressions

one adult = 7x pounds

8 adults = y pounds

Cross multiply

1 * y = 7x * 8

y = 56x

Hence the required expression is y = 56x

7 0
2 years ago
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