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stellarik [79]
3 years ago
14

(4+5)²-(-2)²×(13+7) ayúdenme es para hoy​

Mathematics
2 answers:
ser-zykov [4K]3 years ago
8 0
(9)^2 - (-4) • (20)
81 - (-80)
161
ExtremeBDS [4]3 years ago
7 0
The answer is 1 i think
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there are 98 girls at Ross elementary there are 15 less boys then girls how many boys and girls are at Ross elementary​
Luba_88 [7]
Answer: 98-15= 83 boys
8 0
3 years ago
-5+22=r-4+3r+5<br> I need help please and thank u
Brilliant_brown [7]

Answer:

r = 4

General Formulas and Concepts:

<u>Pre-Alg</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

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

-5 + 22 = r - 4 + 3r + 5

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

  1. Combine like terms:                    17 = 4r + 1
  2. Subtract 1 on both sides:             16 = 4r
  3. Divide 4 on both sides:               4 = r
  4. Rewrite:                                        r = 4

<u>Step 3: Check</u>

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

  1. Substitute:                    -5 + 22 = 4 - 4 + 3(4) + 5
  2. Add/Subtract:               17 = 3(4) + 5
  3. Multiply:                        17 = 12 + 5
  4. Add:                              17 = 17
6 0
3 years ago
Tammy is creating potpourri bowls using 40 bags of shredded bark and 20 bags of flower
Anni [7]

Answer:

20

Step-by-step explanation:

She only has 20 bags of flower petals, so she cannot create more than that. Because 40 is divisible by 20, she can make 20 bowls.

5 0
3 years ago
Daria invested $5,000 in an account that earns 5% interest annually. She will earn $(blank) in interest over nine months.
Murrr4er [49]
5000*.05. The answer is $250.
4 0
3 years ago
Somebody who remembers this plz answer ALL the questions correctly!
professor190 [17]

Answer:

Step-by-step explanation:

22: 7/5

23: 15/4

24: 21/8

25: 9/2

26: 16/3

27: 13/7

28: 25/4

29: 32/9

30: 32/3

5 0
3 years ago
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