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sleet_krkn [62]
3 years ago
15

-12.2z - 13.4z=-179.2. idk how to do this ​

Mathematics
1 answer:
Sever21 [200]3 years ago
8 0

Let's solve your equation step-by-step.

−

12.2

z

−

13.4

z

=

−

179.2

Step 1: Simplify both sides of the equation.

−

12.2

z

−

13.4

z

=

−

179.2

−

12.2

z

+

−

13.4

z

=

−

179.2

(

−

12.2

z

+

−

13.4

z

)

=

−

179.2

(Combine Like Terms)

−

25.6

z

=

−

179.2

−

25.6

z

=

−

179.2

Step 2: Divide both sides by -25.6.

−

25.6

z

−

25.6

=

−

179.2

−

25.6

z

=

7

Answer:

z

=

7

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What is the best estimate of the sum of the fraction? 31/4 +17/3 +8/18
Bogdan [553]

The best estimate of the sum of the expression given is \rm 13 \dfrac {31}{26}

What is a Fraction ?

A fraction is written as p/q , where q \rm \ne 0

It is asked to determine the sum of the fraction

31/4 + 17/3 + 8/18

Taking the LCM of 4 , 3 , 18

LCM of 4 , 3 ,18 is 36

Therefore

\rm \dfrac{ 31 *9 + 17 *12 + 8 *2}{36 }

(279+204+16) /36

499 / 36

\rm 13 \dfrac {31}{26}

Therefore the best estimate of the sum of the expression given is \rm 13 \dfrac {31}{26}.

To know more about Fraction

brainly.com/question/10354322

#SPJ1

3 0
2 years ago
What is the value of g(−3) when g(x)=2x−2 ?
hram777 [196]

To solve a function like this, simply put the numerical value in place of the unknown variable for which you have to find the solution, for instance '-3' in this case.

g(x) = 2x-2

so to find g(-3), we just need to replace the x in the given expression by '-3'. Working is shown below:

g(x) = 2x-2

putting '-3' in place of x

g(-3) = 2(-3) - 2

g(-3) = -6 -2

g(-3) = -8

4 0
3 years ago
I will give brainliest
Alja [10]

1. The answer is 16^2, so B.

16 x 16 = 256

2. The answer is 17, so B.

Some of the factor of 68 are: 1, 2, 4, 17, 34 and 68.

3. The answer is 15, so B.

Only 15 is composite since it contains more than a factor, which are 3 and 5. The rest of the numbers are prime since they only contain a factor.

4. The answer is 2^2^3^7, so B.

The factor tree:

84

2 x 42

2 x 2 x 21

2 x 2 x 3 x 7

Hope this helps! :)

3 0
3 years ago
What is the ordered pair for 16x – 2y = 74 and 2x – 2y = 4?
34kurt
The answer is ....................
X=5
Y=3

8 0
3 years ago
7 1/2 as a fraction greater than 1
9966 [12]

Answer:

yes 15/2

Step-by-step explanation:

3 0
2 years ago
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