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Oliga [24]
3 years ago
14

Solve for z 3z-5+2z=25-5z

Mathematics
2 answers:
Semenov [28]3 years ago
4 0

Answer:

z=3

Step-by-step explanation:

1. collect like terms

5z-5=25-5z

2. Move the variable to the left hand side and change its sign

5z-5+5z=25

3. Collect like terms

10z=25+5

4. Divide both sides of the equation by 10

z=3

iren [92.7K]3 years ago
3 0

Answer:

z=3

Step-by-step explanation:

Add 3z and 2z

5z-5=25-5z

Add 5z on both sides to eliminate the -5z on the RHS

10z-5=25

Add 5 on both sides to eliminate the -5 on the LHS

10z=30

Divide by 10

z=3

Hope this helps!

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What is the probability of rolling a “4” on a fair 6-sided die and flipping a heads on a fair coin?
Sauron [17]

Answer:

Die: 16. 2/3%

Coin: 50%

Step-by-step explanation:

Well rolling a 4 on a 6 sided die is 1/6.

To make that a percent we first make it a decimal.

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To make this a percent we move the decimal place 2 times to the right.

16.2/3%

The chance of flipping a heads on a fair sided coin is 50% because there are two sides with a 50/50 chance of being either.

<em>Thus,</em>

<em>for rolling a 4 on a 6 sided die there is a 16.2/3% chance and a 50% for flipping a heads on a 2 sided coin.</em>

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<em>Hope this helps :)</em>

4 0
3 years ago
What is the value of x?
fiasKO [112]

Answer:

n math, value is a number signifying the result of a calculation or function. So, in the example above, you could tell your teacher that the value of 5 x 6 is 30 or the value of x + y if x = 6 and y = 3 is 9. Value can also refer to a variable or constant. ... A variable is a letter used to signify an unknown number.


4 0
4 years ago
0.008 is one tenth of what number ?
mina [271]

Answer:

You really need to include the answer choices for your question.

Step-by-step explanation:


7 0
3 years ago
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How many thirds are there in 75%
aev [14]
This means that we have 3 thirds in any whole number. We can show this by multiplication: 3*(1/3) = 3/3 = 1  <span> if we have fraction.  ....   .75x3 is 2.25 i believe!

</span>
5 0
3 years ago
How do you measure hexagonal prism
yan [13]

Answer:

See below.

Step-by-step explanation:

There are only two measurements necessary to fully identify a regular hexagonal prism: (1) length of one of its sides (s), and (2) its height (h). From these two measurements, the surface area as well as volume can be determined using the following formulas:

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3 years ago
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