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leonid [27]
3 years ago
9

What is the answer to 3k-1=7k+2

Mathematics
2 answers:
Phoenix [80]3 years ago
5 0
Answer is given above

Paladinen [302]3 years ago
3 0
The answer for 3k-1=7k+2 is -3/4, or -0.75 because:

 3k-1=7k+2
    +1      +1
 3k=7k+3
-7k -7k
-4k=3
/-4  /-4
 k=-3/4, or -0.75
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Find the volume of this object.
Tems11 [23]

Answer:

408 cm^3

Step-by-step explanation:

You have to find the volume of each object individually. You first find the volume of the sphere, so you input the radius, which is 3, into the equation which comes out to be 108 cm^3. You then have to find the volume of the cylinder, and since you have the diameter of the cylinder, and you need the radius, and the radius is half of the diameter, you would input 5 into the equation as the radius, since half of 10 is 5. That comes out to be 300 cm^3, so then you add the two volumes together, which is 408 cm^3

7 0
1 year ago
Bill is $75. tip is 18% what is the total bill
yarga [219]

Answer:

Total bill = $88.50

Step-by-step explanation:

Amount of bill = $75

Tip = 18%

Amount of tip = \frac{18}{100}*75

Amount of tip = 0.18 * 75

Amount of tip = $13.50

Total bill = Bill + Tip

Total bill = 75 + 13.50

Total bill = $88.50

3 0
3 years ago
Read 2 more answers
Can somebody help me with this question, please? I have no idea how to do this or find the answer. :/ How many ways are there to
san4es73 [151]

Answer:

28 different ways

Step-by-step explanation:

This is a combination question. Combination has to do with selection.

Total number of element in the set = 8

Number divisible by 6 or 8 are {-98, -48, -42, -36, -18, -6}

Total number divisible by 6 or 8 is 6

The number of ways we can choose 6 items from 8 is expressed as;

8C6 = 8!/(8-6)!6!

8C6 = 8!/(2)!6!

8C6 = 8*7*6!/2!6!

8C6 = 8*7/2

8C6 = 56/2

8C6 = 28 ways

Hence there are 28 different ways

5 0
3 years ago
The diagonals of this rhombus are 8 and 16 units long. Their intersection creates four right angles, two 4-unit-long segments, a
Roman55 [17]

Answer:

64\ \text{sq. units}

Step-by-step explanation:

Area of a rhombus is the product of the length of the diagonals divided by two.

Length of one diagonal is 8 units and the other diagonal is 16 units

Area is given by

A=\dfrac{8\times 16}{2}\\\Rightarrow A=64\ \text{sq. units}

The area of the rhombus is 64\ \text{sq. units}

Another approach is the diagonals have created 4 triangles where the base and is height is either 4 units long or 8 units long so the area of the rhombus would be the area of the 4 triangles.

A=4\times \dfrac{1}{2}\times 4\times 8\\\Rightarrow A=64\ \text{sq. units}

5 0
3 years ago
Use the formula A = h(b1 + b2).<br> What is the area of the trapezoid?<br> square units
deff fn [24]

Only use h=trapezoid's height.

b=base

4 0
3 years ago
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