1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lostsunrise [7]
3 years ago
9

I dont understand this i did the study guide but this still doesn't make sense ​

Mathematics
1 answer:
Serga [27]3 years ago
4 0
The answer should be C
You might be interested in
What is the greatest number that rounds to 60000
Archy [21]
The greatest number is 70000 and i know because im un fourth grade
7 0
3 years ago
1. white socks to brown socks
Semenov [28]
8 White
6 Black
4 Blue
5 Brown
Total=8+6+4+5=23

1. White to brown = 8:5
2. Blue to non-blue =4:(23-4) = 4:19
3. Black to all = 6 : 23 
4. Ratios equivalent to Q1, 8:5
Multiply ratio by integer factors:
2(8:5)=16:10
3(8:5)=24:15
4(8:5)=32:20
etc.
4 0
4 years ago
Read 2 more answers
Assume that blood pressure readings are normally distributed with a mean of 123 and a standard deviation of 9.6. If 144 people a
Vanyuwa [196]

Answer:

The probability is 0.9938

Step-by-step explanation:

In this question, we are asked to calculate the probability that the mean blood pressure readings of a group of people is less than a certain reading.

To calculate this, we use the z score.

Mathematically;

z = (mean - value)/(standard deviation/√N)

From the question, we can identify that the mean is 125, the value is 123 , the standard deviation is 9.6 and N ( total population is 144)

Let’s plug these values;

z = (125-123)/(9.6/√144) = 2.5

Now we proceed to calculate the probability with a s score less than 2.5 using statistical tables

P(z<2.5) = 0.9938

8 0
3 years ago
At every company meeting, the president speaks for 20 minutes and then takes questions from her employees. Let q represent the n
ololo11 [35]

Answer:

t = 20 + q (minutes)

Step-by-step explanation:

The meeting consists of speaking and Question & Answer (Q&A) sessions.

Speaking session = 20 minutes

Q&A session = q minutes

Total number of minutes spent for the two sessions = 20 + q (minutes)

But total number of minutes meeting lasted = t minutes.

Therefore, t = 20 + q (because they both represent the total number of minutes the meeting lasted)

4 0
3 years ago
Simplify 15 - 12 - 8 + 4 - 6 + 1
Alex Ar [27]
15-12-8+4-6+1=
        3-8+4-6+1=
          -5+4-6+1=
               -1-6+1=
                   -7+1=
                       -6=
The Answer is -6
6 0
3 years ago
Other questions:
  • The expression 2a+1.5b 2a+1.5b  gives the cost (in dollars) for a a cupcakes and b b cookies at a bake sale
    8·1 answer
  • -28+15-22z=31 can u help me please I really need help
    13·2 answers
  • What is the smallest whole number that will round up or down to 300 when we are rounding to the nearest hundred
    15·1 answer
  • Write an equation for the line that is parallel to the given line and that passes through the given point.
    12·1 answer
  • Use rectangle model to find partial quotient of 246÷3
    11·1 answer
  • Which ordered pair is generated from the equation below? y = x - 2 A. (5, 7) B. (7, 14) C. (7, 9) D. (5, 3)
    13·1 answer
  • An oil tanker spills oil that spreads in a circular pattern whose radius increases at a rate of 15 ft/min. Let A be the area of
    6·1 answer
  • At a store, 7 out of the first 10 people who entered were
    14·2 answers
  • in the figure, &lt; 3 =~ &lt; 6. explain how you know that all four pairs of corresponding angles are congruent. (if you answer
    5·2 answers
  • The Perez family bought4 crates of eggs last week. Each crate had 18 eggs. Since then, they have eaten 26 of the eggs. How many
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!