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meriva
3 years ago
15

Please help, im so confused!

Mathematics
1 answer:
MariettaO [177]3 years ago
8 0

Answer:

D (1,1)

Step-by-step explanation:

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A cleaning company charges x dollars per hour to clean floors and y dollars per hour to clean the rest of the house
Nina [5.8K]

Answer:

(15,18)

Step-by-step explanation:

write two equations with the information provided.

2x + 3y = 84

x + 4y = 87

use the property of substitution to answer.

x + 4y = 87,   x = 87 - 4y

2(87 - 4y) + 3y = 84

174 - 8y + 3y = 84

174 - 84 = 8y - 3y

90 = 5y

90/5 = y

y = 18

Add the value of Y to an original equation. Solve for X

2x + 3(18) = 84

2x + 54 = 84

2x = 84 - 54

2x = 30

x = 30/2

x = 15

8 0
3 years ago
Find the value of x so that the function has the given value.<br><br> t(x)=-4x-5 <br><br> t(x)=3
Sveta_85 [38]

Answer:

x = 8 since 3 × 8 = 24

4 0
2 years ago
A woman traveled 2445.1 miles in 17 hours 5 minutes. Find the average speed of her flight in miles per hour. (Change 17 hours 5
blagie [28]

Answer:

+140.68 m/h

Step-by-step explanation:

17.33 h

2438.1/17.33 = 140.68

+140.68 m/h

Please Mark Brainliest

6 0
2 years ago
Is 6^-2 positive or negative? Explain.​
Gnoma [55]

Answer:

It's positive when you have 6^-2 it's the same as having (\frac{1}{6})^{2} \\. So 6^-2 it's 1/36.

Step-by-step explanation:

7 0
3 years ago
Can you help me, please?​
anyanavicka [17]
I can not see the image sorry!!!
5 0
3 years ago
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