All categories

3 years ago

Solve for r. r + 62 ÷2 = 1

Mathematics

2 answers:

GrogVix [38]3 years ago

8 0

Answer:

r = -30

Step-by-step explanation:

Combine like terms: r + 31 = 1
Subtract 31 from each side, so it now looks like this: r = -30

I hope this helps!

Vanyuwa [196]3 years ago

6 0

Answer:

-30

Step-by-step explanation:

because when you put -30 in the equation the sum is 1

You might be interested in

The sum of the measures of the angles of all triangles is 180 degrees. If one angle of the triangle measures 45 degrees, and the

Helen [10]

Answer:

67.5 degrees

Step-by-step explanation:

The first angle is 45 and the second angle is x and the third angle is x (the second and third are equal)

We know the 3 angles of a triangle add to 180 degrees

45+x+x = 180

Combine like terms

45+2x=180

Subtract 45 from each side

45-45 +2x = 180-45

2x= 135

Divide by 2

on each side

2x/2 =135/2

x = 67.5

5 0

3 years ago

How many solutions does the following system have?

Allisa [31]

No solution since the two equations do not intersect

7 0

3 years ago

The following data were given in a study of a group of 1000 subscribers to a certain magazine. In reference to job, marital stat

kozerog [31]

Answer:

$(a)$ $P(M\ or\ P\ or\ C) = 1.307$

(b) See Explanation

Step-by-step explanation:

Given

$P = 312$ ---- Professionals,

$M = 470$ ----- Married persons,

$C = 525$ ---- College graduates,

$PCG = 42$ ----- Professional college graduates,

$MCG = 147$ ----- Married college graduates,

$MP = 86$ ---- Married professionals,

$MPCG = 25$ ---- Married professional college graduates

$Total =1000$

Solving (a): P(M or P or C)

This is calculated as:

$P(M\ or\ P\ or\ C) = P(M) + P(P) + P(C)$

$P(M\ or\ P\ or\ C) = \frac{n(M) + n(P) + n(C)}{Total}$

$P(M\ or\ P\ or\ C) = \frac{470 + 525 + 312}{1000}$

$P(M\ or\ P\ or\ C) = \frac{1307}{1000}$

$P(M\ or\ P\ or\ C) = 1.307$

(b) In probabilities, the probability of an event or collection of events must not exceed 1 and must not go below 0.

In (a) above, the calculated probability exceeds 1.

Because of this single reason, the collected data is incorrect

4 0

3 years ago

-27 w3 + 125 factorize<br>

Sedbober [7]

$-1(3w-5)(9w^{2} +15w+25)$

4 0

2 years ago

How can you represent the repeating decimal 0.3 (0.333333) as a fraction?

Tems11 [23]

<h3>when you write 0.33333333 in a calculator and convert it to fraction using the a b/c button you should get 1/3 as an answer</h3>

<h3>another method is </h3>

Step 1: Write down the decimal divided by 1

Step 2: Multiply both top and bottom by 10 for every number after the decimal point. (For example, if there are two numbers after the decimal point, then use 100, if there are three then use 1000, etc.)

Step 3: Simplify (or reduce) the fraction

refer to picture above plzz***

hope that helps !

5 0

3 years ago

Solve for r. r + 62 ÷2 = 1​

Solve for r. r + 62 ÷2 = 1