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kari74 [83]
3 years ago
15

Are the two expressions in the equation 2b + 5 + 1b = 3b + 5 equal or equivalent? How do you know?

Mathematics
2 answers:
irga5000 [103]3 years ago
8 0

Answer:

the equation are equivalent

Step-by-step explanation:

to know why, look at the pic above

hodyreva [135]3 years ago
4 0

Answer:

they are equal because while solving 2b+5+1b it will come 3b+5 so they are equal

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Please help 7th grade math question? URGENT! awarding brainliest!
Ivenika [448]

correct Option is B i.e, 72x^2+288x^2-216x whose simplified form is: 360x^2-216x

Step-by-step explanation:

We need to solve the expression:

2[(6x)(6x)]+4[(12x - 9)(6x)]

Solving:

2[(6x)(6x)]+4[(12x - 9)(6x)]\\=2[36x^2]+4[(12x*6x)-(9*6x)]\\=72x^2+4[72x^2-54x]\\=72x^2+288x^2-216x\\=360x^2-216x

So, correct Option is B i.e, 72x^2+288x^2-216x whose simplified form is: 360x^2-216x

Keywords: Surface area of the rectangular prism

Learn more about surface area of the rectangular prism at:

  • brainly.com/question/12613605
  • brainly.com/question/6443737
  • brainly.com/question/3306327

#learnwithBrainly

4 0
3 years ago
Alex drew the triangles shown. Which of the following correctly describes the triangles? 2 triangles are shown. Each triangle ha
evablogger [386]

Answer: D. Both triangles have an obtuse angle

This is because it says "Each triangle has <u>1 obtuse angle</u> and 2 acute angles" in the instructions. An obtuse angle is any angle between 90 and 180 degrees, excluding both endpoints.

4 0
3 years ago
1. Mitch needs to do his laundry. It takes him 75 minutes to do each load when he washes and dries the load. It takes him 43 les
NARA [144]

not sure if this is correct but 1. A ( reasoning: "Hint: Mitch has to do the opposite of subtract 43 to both sides." which means he had to add. 2. She can get no more than 4

5 0
3 years ago
66 is what percent of 52.8?
Ivan

Answer:

125%

Step-by-step explanation:

If you take the question

66 is what percent of 52.8?

and convert it into an equation it would be

66=x*52.8

Using this information we divide 66 by 52.8 this then gives us our final answer of 1.25 or 125%

7 0
4 years ago
Which equation represents the line that passes through (–8, 11) and (4, 7/2)?
slavikrds [6]
A is the answer since if you graph it, it has those points, or you may just simply plug in the x points that are given and see if they equal the y number
5 0
3 years ago
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