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bixtya [17]
3 years ago
9

Josephine wrote the number 1-100 and placed them in a bag. If she selects a number without looking, what is the probability that

the number is greater than 78?
Mathematics
1 answer:
nirvana33 [79]3 years ago
6 0
22% since 100-78 is 22 so that is the percentage of numbers between 78 and 100
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T = AB-5 for A what would be the answer for A
Ainat [17]

The given equation solved for A is A = (T + 5)/ B

<h3>Solving linear equation</h3>

From the question, we are to solve the given equation for A

To solve the equation for A, we will simply make A the subject of the equation

The given equation is

T = AB - 5

Solving for A

T = AB - 5

Add 5 to both sides of the equation

T + 5 = AB - 5 + 5

T + 5 = AB

Divide both sides of the equation by B

That is,

(T + 5)/B = AB/B

(T + 5)/B = A

∴ A = (T + 5)/ B

Hence, the given equation solved for A is A = (T + 5)/ B

Learn more on Solving linear equation here: brainly.com/question/1531728

#SPJ1

3 0
1 year ago
Evaluate the following expression if a = -6, b = 2/3 and c = -5.5 : -ab - ac
11111nata11111 [884]

Answer:

-29

Step-by-step explanation:

-ab-ac

= -(-6)(2/3)-(-6)(-5.5)

=4-33

= -29

3 0
3 years ago
Read 2 more answers
Find Z for the following proportion
krek1111 [17]
This is the simplest proportion i have seen.
This is how we do it:
\frac{z}{7} = \frac{1}{7}
The answer surprisingly is obvious, z = 1
But we can still do cross multiplication

7z = 7
Divide by 7 to isolate z

\frac{7z}{7} =  \frac{7}{7}
7 and 7 cancels out
z = 1
7 0
3 years ago
Read 2 more answers
Jackie is thinking of one number and Adrian is thinking of another. Camila thought if I take these two numbers, they have a prod
ladessa [460]

Answer:

  • Jackie: 27
  • Adrian: 21

Step-by-step explanation:

Integers with a product of 567 are ...

  567 = 1·567 = 3·189 = 7·81 = 9·63 = 21·27

The last of these pairs of factors have a difference of 6, so they are the answers.

Jackie's number is 27; Adrian's number is 21.

_____

You could let "a" represent Adrian's number and write the equation ...

  a(a +6) = 567

  a^2 +6a +9 = 576 . . . . . complete the square

  (a +3)^2 = 24^2 . . . . . . . write as squares

  a = -3 +24 = 21 . . . . . . . . take the positive square root; subtract 3

Adrian's number is 21; Jackie's number is 27.

4 0
3 years ago
What is 1 4/5 + 2 3/20 +5/ 3
sveticcg [70]
1 \frac{4}{5} +2 \frac{3}{20} + \frac{5}{3} \\ \\ 3 +  \frac{4}{5}  +  \frac{3}{20} + \frac{5}{3}  \\ \\ LCD = 60 \\ \\ 3 +  \frac{4 \times 12}{5 \times 12} +  \frac{3 \times 3}{20 \times 3} +  \frac{5 \times 20}{3 \times 20} \\ \\ 3 +  \frac{48}{60} + \frac{9}{60} + \frac{100}{60} \\ \\ 3 +  \frac{48 + 9 + 100}{60} \\ \\ 3 +  \frac{157}{60} \\ \\ 3 + 2 \frac{37}{60} \\ \\ 5 \frac{37}{60} \\ \\ Answer: \fbox {5 37/60} \ or \ \fbox {5.6167}
5 0
3 years ago
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