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Juliette [100K]
3 years ago
15

Whats the solution to this equation?

Mathematics
1 answer:
lukranit [14]3 years ago
8 0

Answer:

C

Step-by-step explanation:

2x + 3(x - 10) = 45

2x + 3x - 30 = 45

5x - 30 = 45

5x = 75

x = 15

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Pls help! Geometry <br> What is the area of the new rectangle?
cupoosta [38]

Answer:

Step-by-step explanation:

Since the ladybug is 3.3cm far from each edge of the rectangle, it follows that the length of the new rectangle is 3.3cm+9.5cm + 3.3cm = 16.1cm and the width is 3.3cm+7.5cm + 3.3cm = 14.1cm.

Recall a formula for the area of a rectangle: A = l \cdot w, where l is a length and w is a width of the rectangle.

Substitute l=16.1cm and w=14.1cm into the formula:

A=16.1cm\cdot 14.1cm

Multiply the numbers:

A= 227.01cm^{2}

Therefore, the required area is equal to 227.01cm^{2}.

8 0
2 years ago
To the nearest tenth, what is the distance between the points (1, –2, 5) and (0, 7, –4)?
Eduardwww [97]

Answer:

The distance is 12.8\ units

Step-by-step explanation:

we know that

The formula to calculate the distance between two points is equal to

d=\sqrt{(x2-x1)^{2}+(y2-y1)^{2}+(z2-z1)^{2}}

we have

A(1,-2,5)\\B(0,7,-4)  

substitute the values

d=\sqrt{(0-1)^{2}+(7+2)^{2}+(-4-5)^{2}}

d=\sqrt{(-1)^{2}+(9)^{2}+(-9)^{2}}

d=\sqrt{1+81+81}

d=\sqrt{163}\ units

d=12.8\ units

8 0
3 years ago
If a customer's bill is $45.00 for the first month their subscription starts and $30.00 each month after that, which date did th
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What is the answer of this problem -7/3(3x-2)=-21 ?
weeeeeb [17]

Answer:

= 11/3

Step-by-step explanation:

1. COMBINE MULTIPLIED TERMS INTO A SINGLE FRACTION

- 7/3 (3x-2)= -21

-7 (3x-2) = -21

-----------------------

3

2. DISTRIBUTE

-7( 3x- 2) ➗ 3 =-21

3. MULTIPLY ALL TERMS BY THE SAME VALUE TO ELIMINATE FRACTION DENOMINATORS

-21x + 14 ➗ 3 = 3 (-21)

4. CANCEL MULTIPLIED TERMS THAT ARE IN THE DENOMINATOR

3 ( -21x + 14) ➗ 3 (-21)

5. MULIPLY THE NUMBERS

-21x + 14 = 3(-21)

6. SUBTRACT 14 FROM BOTH SIDES OF THE EQUATION

-21x + 14 = -63

7. SIMPLIFY

-21x = - 77

8. DIVIDE BOTH SIDES OF THE EQUATION BY THE SAME TERM

-21x/-21 = -77/-21

9. SIMPLIFY

x = 11/3

3 0
3 years ago
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