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Afina-wow [57]
4 years ago
11

Naomi has 45 minutes to get ready for school. She spends x minutes getting dressed. Write an expression that represents the numb

er of minutes she still has to get ready
Mathematics
1 answer:
muminat4 years ago
7 0
I think it would be 45-x     x= minutes spent getting dressed

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Can someoneplzzz do this???<br> Domain:<br> Range
slava [35]

Greetings! Hope this helps!

Answer

D {-3, 5}

R: {0,4}

Have a good day!

_______________

A brainliest would help tons! :D

3 0
3 years ago
15 ‒ 5x = 6x + 3 – 2x
LenKa [72]

Answer:

x = 4/3

Step-by-step explanation:

15 - 5x = 6x + 3 - 2x

In this kind of equation, we try to seperate the x's and the numbers.

So we add 5x to both sides and subtract 3 from both sides to seperate these values

15 - 3 - 5x + 5x = 6x + 3 - 3 - 2x + 5x

=> 12 = 9x

=> 12/9 = x

=> 4/3 = x

=> x = 4/3

To check, we can plug this in.

15 - 5(4/3) = 6(4/3) + 3 - 2(4/3)

15 - 20/3 = 24/3 + 3 - 8/3

45/3 - 20/3 = 24/3 + 9/3 - 8/3

25/3 = 25/3

So our answer works.

7 0
3 years ago
What is the sum of the measures of angles 3,4,5?
ruslelena [56]

Answer:

It's equal to 3² + 4² + 5² = 9 + 16 + 25 = 50

4 0
3 years ago
I need to solve these two equations using either substitution or elimination
vitfil [10]

Answer:

y = -15

x = -10

Step-by-step explanation:

1/4x - 1/2 = 5 (1)

3x + 2/3y = -40 (2)

Multiply (1) by 4

1/4x - 1/2 = 5

1/4x * 4 - 1/2y * 4 = 5 * 4

4/4x - 4/2y = 20

x - 2y = 20 (3)

Multiply (2) by 3

3x + 2/3y = -40 (2)

3x * 3 + 2/3y * 3 = -40 * 3

9x + 6/3y = -120

9x + 2y = -120 (4)

x - 2y = 20 (3)

9x + 2y = -120 (4)

Using elimination method, Add (3) and (4)

9x + x = -120 + 20

10x = -100

x = -100/10

x = -10

Substitute x = -10 into (3)

x - 2y = 20 (3)

-10 - 2y = 20

-2y = 20 + 10

-2y = 30

y = 30/-2

y = -15

y = -15

x = -10

8 0
3 years ago
Solve for c : 2.5c = 15.75
djyliett [7]
C=6.23. all you have to do is divide 15.75 by 2.5.
4 0
3 years ago
Read 2 more answers
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