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ankoles [38]
3 years ago
7

What is 3d+8=2d-7 is equations

Mathematics
1 answer:
fredd [130]3 years ago
6 0
3d + 8 = 2d - 7 equals d = -15.

First, 
subtract 2d from both sides. Your problem should look like: 3d + 8 - 2d = -7.
Second, simplify 3d + 8 - 2d to get d + 8. Your problem should look like: d + 8 = -7.
Third, subtract 8 from both sides. Your problem should look like: d = -7 - 8.
Fourth, simplify -7 - 8 to get -15. Your problem should look like: d = -15, which is your answer.

Hopefully this helps, I'm not exactly sure what you meant by "is equations," but this is how you solve the problem.
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Negative one half minus negative five ninths
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Answer: -101/18

Step-by-step explanation: I think, I don’t know

6 0
3 years ago
In a certain Algebra 2 class of 27 students, 18 of them play basketball and 16
Bogdan [553]

Answer:

<em>The probability is 0.89 or 89%</em>

Step-by-step explanation:

<u>Probability</u>

There are n=27 students in a certain Algebra 2 class. 18 out of them play basketball and 16 of them play baseball.

We also know 3 students play neither sport. This leaves 27-3=24 students playing sports.

The probability that a randomly chosen student plays basketball or baseball is:

\displastyle p=\frac{24}{27}

Simplifying:

\displastyle p=\frac{8}{9}=0.89

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6 0
3 years ago
Suppose Larry has 16 books and Pat has x books. (Larry still has at least 3 more than Pat.)
zimovet [89]

Answer:

13 ≥ x

Step-by-step explanation:

  • Larry = 16
  • Pat = x

<u>Larry has at least 3 more than Pat</u>

  • 16 ≥ x + 3

<u>Simplified</u>

  • 16-3  ≥ x + 3 - 3
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4 0
3 years ago
The length of a rectangle is "a" inches and the width is 3 inches more than its length. find the perimeter and the area
Alex73 [517]

Answer:

Step-by-step explanation:

Givens

Length = a

Width = a + 3

Formulas

P = 2L + 2w

Area = L * w

Solution

Perimeter

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P = 2*a + 2(a + 3)             Remove the Brackets

p = 2a + 2a + 6                Combine

<u><em>P = 4a + 6</em></u>

Area

Area = L * w

Area = a (a + 3)

<u><em>Area = a^2 + 3a</em></u>

7 0
2 years ago
How much does each one equal?​
nadya68 [22]

Answer:

need more information

4 0
3 years ago
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