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
Salsk061 [2.6K]
2 years ago
7

A teacher grades 27 tests in 3 hours How many tests can the teacher grade in 8 hours if he works at the same rate

Mathematics
2 answers:
larisa [96]2 years ago
5 0

Answer:

72 tests

Step-by-step explanation:

lets put this in a ratio

27 (tests) : 3 (hours)

now we simplify by dividing each side by 3

9:1

Now we must find 8 hours so multiply each side by 8

72:8

the teacher will grade 72 tests in 8 hours

Norma-Jean [14]2 years ago
4 0

Answer:

72 tests

Step-by-step explanation:

Lets find how many are graded per hour:

27 ÷ 3 = 9

9 tests per hour

9 · 8 = 72

72 tests

i hope this helped, please mark Brainliest, thank you!!

You might be interested in
Jillian is mailing an 8-pound package. She doesn’t know a single conversion factor that will convert pounds to grams. Which conv
cricket20 [7]
For this case we have the following conversion of units:
 1 lb = 453.59 g
 We apply the conversion of units to the weight of the package.
 We have then:
 (8) * (453.59) = 3628.72 g
 Answer:
 
the weight in grams is:
 
3628.72 g.
 
you can use the following conversion factor:
 
1 lb = 453.59 g
7 0
3 years ago
Read 2 more answers
Prove that the product of any three consecutive numbers is even.
mestny [16]

Answer:

The product of three consecutive numbers is essentially the product of an odd number and an even number.

The product of an odd number and an even number is always even.

Explanation:

Consecutive numbers follow a pattern - they alternate between odd and even. (Any number sequence goes: ... odd, even, odd, even, odd ...)

With three consecutive numbers, there are two combinations:

1. odd, even, odd

2. even, odd, even

Remember these rules:

The product of two odd numbers is always odd.

The product of two even numbers is always even.

***The product of an odd number and an even number is always even.

Simplify the equations of consecutive numbers with the rules.

odd X even X odd

= even X (odd)(odd)

= even X odd

= even

even X odd X even

= odd X (even)(even)

= odd X even

= even

***Why this rule works:

In any multiplication statement, the multiplication sign means "groups of".

For example, 5 times 3 = 5 groups of 3.

An even number means, like if a number was represented by number of people, everyone would have a partner.

odd X even means "odd# groups of even # people".

Within each group, everyone already has a partner. It does not matter how many groups there are.  Therefore it's an even number.

even X odd means "even# groups of odd # people".

In this model, there is a leftover person in each of the groups. These people find a partner from another group. Since there are an even number of groups, there is an even number of leftover people. Then they all find a partner. Therefore it's an even number.

4 0
3 years ago
If each group has the greatest possible number of club members,
Mars2501 [29]
So anybody know the answer yet cuz i don’t
7 0
2 years ago
Find in the table for any missing values. Please help!!!
Oxana [17]

Answer:

1:3

2:6

3:9

5:15

Step-by-step explanation:

Ask yourself: What times 3 equals my number?

As you can see 1x3=3 then 2x3=6, 3x3=9, and lastly 5x3=15

This is how you solve the chart.

8 0
3 years ago
Answer for the blank?​
umka2103 [35]
The answer is 3 you add the two numbers before it
3 0
2 years ago
Read 2 more answers
Other questions:
  • What is 16.91 with a discount of 18%
    7·2 answers
  • Brandon purchased a home for $419,000. He made a 10% down payment and financed the remaining amount. The intangible tax is 0.2%.
    11·1 answer
  • Please help me with the following questions. Thanks in advance!
    8·1 answer
  • Find the least positive angle measurement that is coterminal with 230°.
    7·1 answer
  • Complete the recursive formula of the arithmetic sequence -15, -11, -7...
    11·2 answers
  • What is the slope of the line that passes through the points (8, 2) and (9,3)? Write
    14·1 answer
  • Which phrase represents 3y+9​
    11·2 answers
  • What is the answer??
    10·1 answer
  • Awnser this for brainliest.
    13·2 answers
  • I need help with this
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!