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Yakvenalex [24]
3 years ago
10

Julie is x years old. Kevin is x+3 years old & Omar is 2x years old. Write an expression , in terms of x , for the mean of t

heir ages.
Mathematics
1 answer:
Umnica [9.8K]3 years ago
7 0

Answer:

(x+x+3+2x)/3 = (4x+3)/3

Step-by-step explanation:

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Solve the equation. −3(y+5)=15
e-lub [12.9K]

Divide both sides by -3

y + 5 = -15/3

Simplify 15/3 to 5

y + 5 = -5

Subtract 5 from both sides

y = -5 - 5

Simplify -5 - 5 to -10

y = -10

8 0
3 years ago
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Please help with question 8 and explain steps
Ket [755]
2 -> 7; but 7 = 2 * 2 + 3;
3 -> 9; but, 9 = 3 *2 + 3;
4 -> 11; but, 11 = 4 * 2 + 3;
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The rule is : ( your number ) * 2 + 3;

The function rule is f( x ) = 2x + 3.
4 0
3 years ago
Which expression is equivalent to 4 - (-7)
ad-work [718]
4 - (-7)

This will be the same as 4 - - 7
Which is 4 + 7
11
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3 years ago
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The diagram shows two straight lines<br>work out the value of x<br><br>​
Virty [35]

Answer:

136

Step-by-step explanation:136 The angles are vertical angles and vertical angles are equal

8 0
2 years ago
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FOR 20 POINTS PLEASE SHOW ME STEPS FOR ANSWERING THIS QUESTION PLEASE!!!!!!!
Vaselesa [24]
To answer this first we need to find out how much Tiffany earns per hour and then we will multiply. lets do it:-

77.28 ÷ 4 = 19.32
$19.32 per hr

CHECK OUR WORK:-
19.32 × 4 = 77.28
we were RIGHT!!

Now lets see how much she earns in 15 hrs.

19.32 × 15 = 289.8
Tiffany earns $289.8 to work for 15 hrs.

CHECK OUR WORK:-

289.8 ÷ 15 = 19.32
we were RIGHT!!

So, Tiffany earns $289.8 to work for 15 hrs.

Hope I helped ya!! 
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