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Alex777 [14]
3 years ago
10

Need help understanding this

Mathematics
1 answer:
N76 [4]3 years ago
3 0
DONT GO TO LINK ITS DANGEROUS ⚠️
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WILL GIVE BRAINLIEST!!!
Nostrana [21]

Answer:

J

Step-by-step explanation:

Mn=PQ

SAS requires 2 sides and you need to know that they are congruent

4 0
3 years ago
Helpppp! please i'll put brainliest
Anna35 [415]

Answer: -1

Step-by-step explanation:

Subtract each fraction by each other than simplify

4 0
2 years ago
Read 2 more answers
Solve for x.<br> 7(1x - 3) = 4(x + 5)
alexandr1967 [171]

Answer:

x = 41/3

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

7(1x - 3) = 4(x + 5)

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Simplify:                                        7(x - 3) = 4(x + 5)
  2. Distribute:                                     7x - 21 = 4x + 20
  3. Subtract 4x on both sides:          3x - 21 = 20
  4. Add 21 on both sides:                  3x = 41
  5. Divide 3 on both sides:                x = 41/3

<u>Step 3: Check</u>

<em>Plug in x to verify it's a solution.</em>

  1. Substitute:                    7(1(41/3) - 3) = 4(41/3 + 5)
  2. Multiply:                        7(41/3 - 3) = 4(41/3 + 5)
  3. Subtract/Add:               7(32/3) = 4(56/3)
  4. Multiply:                        224/3 = 224/3

Here, we see that 224/3 is indeed equivalent to 224/3. ∴ x = 41/3 is a solution to the equation.

And we have our final answer!

6 0
2 years ago
A triangular-shaped window has a base of 3 feet and a height of 4 feet. What is the area of the window?
Simora [160]

Answer:

12 feet

Step-by-step explanation:

4 times 3 is 12 and that is how u find area I think

6 0
1 year ago
Jack is 4 times as old as Lacy. 3 years from now the sum of their ages will be 71 . How old are they now?
Marizza181 [45]

Answer:

Lacy is 13 and Jack is 52

Step-by-step explanation:

In 3 years their ages will add up to 71 so you have to subtract 6 as there are two of them to get 65. Lacy's age is represented by x and since Jack is 4 times older his age is represented by 4x. So added together their age is 5x. So 5x=65. Then 65/5=13. So 13=x. So Lacy is 13 and Jack is 52 as 13x4 is 52.

3 0
3 years ago
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