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TEA [102]
2 years ago
10

Find the value of each variable. X=?

Mathematics
1 answer:
Effectus [21]2 years ago
6 0

Answer:

x=3

Step-by-step explanation:

The equation is x² + 5x = 24, so 3² +15 would be the perfect match. This is because 9+15=24.

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Express 1 1/2% as a decimal.
Step2247 [10]
If 1% is equal to 0.01
and 1/2% is equal to 0.005
then 1 1/2% is equal to 0.015
7 0
2 years ago
PLEASE HELP ASAP ITS DUE SOON AND I NEED THE ANSWER RN! SHOW YOUR WORK ILL GIVE BRAINLIEST
IceJOKER [234]

Answer:

(12, -6)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Algebra I</u>

  • Terms/Coefficients
  • Coordinates (x, y)
  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

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

-4x = y - 42

x = 18 + y

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

  1. Substitute in <em>x</em>:                                                                                                -4(18 + y) = y - 42
  2. Distribute -4:                                                                                                   -72 - 4y = y - 42
  3. [Addition Property of Equality] Add 4y on both sides:                                 -72 = 5y - 42
  4. [Addition Property of Equality] Add 42 on both sides:                                -30 = 5y
  5. [Division Property of Equality] Divide 5 on both sides:                               -6 = y
  6. Rewrite/Rearrange:                                                                                         y = -6

<u>Step 3: Solve for </u><em><u>x</u></em>

  1. Define original equation:                                                                               x = 18 + y
  2. Substitute in <em>y</em>:                                                                                                x = 18 - 6
  3. Subtract:                                                                                                           x = 12
6 0
2 years ago
4. A health club manager wants to determine
chubhunter [2.5K]

Answer: 600 members of the club

Step-by-step explanation:

  • In a statistical study ,  a population is a large group of observations by the researcher's  point of view regarding the objective of the study.

A sample is a subset of the population that represents the entire population.

Here , we are given that ,

The club surveys  50 of its 600 members.

Clearly , Population = 600 members of the club

Sample = 50 members

Hence, the population of this study is "600 members of the club " .

7 0
3 years ago
Find the surface area of the square pyramid below.
valentina_108 [34]

Answer:

728 m^2

Step-by-step explanation:

There are 5 faces of the square pyramid.

You have to calculate area of each face and add them to find surface area.

Bottom face is a square, so

area = 14^2 = 196 m^2

All the other faces are triangle with same area, so

4 × triangle area

4 × ((1/2)×14×19)

4 × 133

532 m^2

Now add those areas,

(196 + 532) m^2

728 m^2

4 0
3 years ago
Someone pls help me . Thank you sm
vladimir1956 [14]

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>X = 24</em>

<em>m = 13/7 or about 1.86</em>

▹ Step-by-Step Explanation

X/3 + 7 = 15

X + 3 * 7/3 = 15

X + 21/3 = 15

X = 24

3.5m - 1.5 = 5

35/10m - 15/10 = 5

5 * 7/2 * 5m - 3 * 5/2 * 5 = 5

m = 13/7 or about 1.86

Hope this helps!

CloutAnswers ❁

━━━━━━━☆☆━━━━━━━

5 0
3 years ago
Read 2 more answers
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