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Fynjy0 [20]
3 years ago
10

4 bags of cement do 18m(squared), how many m(squared) can be done with 7 bags ?

Mathematics
1 answer:
Elis [28]3 years ago
4 0
I think 7 bags do 31.5 m squared
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How do I fill this out? Im not sure how to?
prohojiy [21]

Answer:

z=-21

Step-by-step explanation: (9-3)/2=(6+z)/5

We move all terms to the left:

(9-3)/2-((6+z)/5)=0

We add all the numbers together, and all the variables

-((z+6)/5)+6/2=0

We add all the numbers together, and all the variables

-((z+6)/5)+3=0

We multiply all the terms by the denominator

-((z+6)+3*5)=0

We calculate terms in parentheses: -((z+6)+3*5), so:

(z+6)+3*5

We add all the numbers together, and all the variables

(z+6)+15

We get rid of parentheses

z+6+15

We add all the numbers together, and all the variables

z+21

Back to the equation:

-(z+21)

We get rid of parentheses

-z-21=0

We add all the numbers together, and all the variables

-1z-21=0

We move all terms containing z to the left, all other terms to the right

-z=21

z=21/-1

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5 0
2 years ago
What value of k will make this expression equal to 0? <br><br> b • 3.8 • 2.72 • (k – 4)
Verizon [17]

4-4=0

anything x 0=0

your answer is 4

Hope this helps!

3 0
3 years ago
Read 2 more answers
What is the value of t in the equation 3(2t + 5) = 5t +25
zmey [24]
Distribute 3 
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subtract 5t from 6t
t+15=25
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7 0
3 years ago
Which of the following,is a factor of 3x^2-9x^2+3x
Savatey [412]

Answer:

-3x(x-1)

Step-by-step explanation:

-6x^2 +3x

-3x(x-1)

Hope this helps!

If you think i helped, please mark brainliest! Would really appreciate!

5 0
3 years ago
Sanjeev had 350 marbles and he gave 1/5 of them to his friend, Rayson. How many
kicyunya [14]

Answer:

70

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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