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Shtirlitz [24]
3 years ago
8

Solve the equation 3.5z-2.7z=-6

Mathematics
2 answers:
zysi [14]3 years ago
5 0
First you do 3.5z-2.7z= .8z then you divide .8 with -6, which gives you -7.5 so z= -7.5
svlad2 [7]3 years ago
3 0

Answer: The value of z is -0.75.

Step-by-step explanation:

The given equation is 3.5z-2.7z=-6

In term to solve it to find z ,  we first simplify the left side.

By using distributive property :ba+ca=(b+c)a , we get

(3.5-2.7)z=-6\\\\\Rightarrow 0.8z=-6

Now , Divide both sides by 0.8 , we will get

z=\dfrac{-6}{0.8}=\dfrac{-60}{8}\\\\\Rightarrow\ z=-7.5

Hence, the value of z is -0.75.

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How to find average value of a function over a given interval?
Strike441 [17]
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3 years ago
Which expressions are equivalent to 5p+3p+(-9)5p+3p+(−9)5, p, plus, 3, p, plus, (, minus, 9, )? Choose all answers that apply:
Lemur [1.5K]

Answer:

Option B.

Step-by-step explanation:

The given expression is

5p+3p+(-9)

We need to find an expression which is equivalent to the given expression.

Combine like terms.

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The simplified form of given expression is 8p-9. So, option A is incorrect.

In option B, the given expression

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Using distributive property, we get

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Combined liker terms.

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It is same as the simplified form of given expression.

Therefore, the expression 3(p+(-3))+5p is equivalent to the given expression and correct option is B.

7 0
2 years ago
Read 2 more answers
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3 0
3 years ago
I need help with this math question
ICE Princess25 [194]

Answer:

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Step-by-step explanation:

Step 1: Rewrite the equation a bit

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Step 2: Place a logarithm base 7 on both sides

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Neat exponent question :)

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2 years ago
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