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
Tomtit [17]
2 years ago
14

The sixth-grade science class found that 20% of the students in the school were left- handed. If there were 800students in the s

chool, how many were left-handed?
Mathematics
1 answer:
makkiz [27]2 years ago
4 0

Answer: 160

Step-by-step explanation:

So first you start by making the percent which is 20 a decimal (.20) . Then , you multiplu .20 by 800 and get 160 , or if you know 10% is 80 2 times that would be 20 percent . And 80 plus 80 is 160 .

You might be interested in
Indicate whether the statement is true of false.
yawa3891 [41]

The statement is false, as the system can have no solutions or infinite solutions.

<h3>Is the statement true or false?</h3>

The statement says that a system of linear equations with 3 variables and 3 equations has one solution.

If the variables are x, y, and z, then the system can be written as:

a_1*x + b_1*y + c_1*z = d_1\\\\a_2*x + b_2*y + c_2*z = d_2\\\\a_3*x + b_3*y + c_3*z = d_3

Now, the statement is clearly false. Suppose that we have:

a_1 = a_2 = a_3\\b_1 = b_2 = b_3\\c_1 = c_2 = c_3\\\\d_1 \neq d_2 \neq  d_3

Then we have 3 parallel equations. Parallel equations never do intercept, then this system has no solutions.

Then there are systems of 3 variables with 3 equations where there are no solutions, so the statement is false.

If you want to learn more about systems of equations:

brainly.com/question/13729904

#SPJ1

3 0
2 years ago
In the book Business Research Methods, Donald R. Cooper and C. William Emory (1995) discuss a manager who wishes to compare the
S_A_V [24]

Answer:

Null hypothesis is: U1 - U2 ≤ 0

Alternative hypothesis is U1 - U2 > 0

Step-by-step explanation:

The question involves a comparison of the two types of training given to the salespeople. The requirement is to set up the hypothesis that type A training leads to higher mean weakly sales compared to type B training.

Let U1 = mean sales by type A trainees

Let U2 = mean sales by type B trainees

Therefore, the null hypothesis (H0) is: U1 - U2 ≤ 0

This implies that type A training does not result in higher mean weekly sales than type B training.

The alternative hypothesis (H1) is: U1 - U2 > 0

This implies that type A training indeed results in higher mean weekly sales than type B training.

4 0
3 years ago
An ant walks 30 feet in 6 minutes.How long would it take the ant to walk 35 yards
pentagon [3]
You need to multiply 30 by 6 so 30times6 =your answer
4 0
3 years ago
What is 65÷3 ok ease answer
anzhelika [568]
The Answer Is 21.6 repeating
3 0
3 years ago
Read 2 more answers
If the area of the rectangle is 60 square inches, what is the width of the rectangle?
lesya692 [45]

Answer:

put a picture up

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • BRAINLIEST AND WORTH 10 POINTS!
    11·1 answer
  • the measure of angle p is Angles P and Q are complementary. the measure of angle Q is (6x+1), and 29 degrees. what is the value
    14·1 answer
  • Why is it a chemical change when kernels corns are heated into popcorn
    10·2 answers
  • If one score is randomly selected from a normal distribution with m = 100 and s = 20, the probability of obtaining a score betwe
    12·1 answer
  • Wish is 7(x-4) in simplest form?
    13·2 answers
  • The sum if three consecutive even numbers is 78 <br> What is the smallest of the three numbers ?
    7·1 answer
  • A pencil case for £3.99 a packet of pens for £2.49 a calculator for 4.99 she pays with a £20 note how much change will she recei
    15·2 answers
  • A cirdie is divided up into 24 equal pieces. What percentage of the total circle area will each piece be? Round to the nearest
    10·1 answer
  • 40÷12.0 and 32÷8.75. I need to show my work to.​
    7·1 answer
  • The sales tax on a $25,000 car is $1375. What is the sales tax rate?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!