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
Harman [31]
3 years ago
15

Jordis took a test with a total of 90 questions. His teacher told him that he must answer 80% of the questions correctly to earn

a B. How many questions must he answer correctly to earn the B?
Mathematics
2 answers:
Tanzania [10]3 years ago
8 0

Answer:

72

Step-by-step explanation:

G o o g l e

g100num [7]3 years ago
4 0

Answer:

he must answer 72 question to earn the B.

~hope this is correct~

Step-by-step explanation:

You might be interested in
A farmers field has the dimensions 2 and 3/4 by 1 and 1/3. He needs to find the area of the field
Afina-wow [57]

Answer:

3 2/3 units²

Step-by-step explanation:

Since the field is rectangular in nature;

Area of the field = Length * Width

Given

Length = 2 3/4

Width = 1 1/3

Area of the field = 2 3/4 * 1 1/3

Area of the field = 11/4 * 4/3

Area of the field = 4/4 * 11/3

Area of the field = 1 * 11/3

Area of the field = 11/3

Area of the field = 3 2/3

Hence the area of the field is 3 2/3 units²

5 0
3 years ago
The graph represents a person's heart rate in beats per minute during 30 minutes of exercise.
Andrej [43]

Looking at the graph closely we can see that the heart rate increases from 0 to 6 min then became steady from 6 to 25 min then finally decreases from 25 to 30 min. Therefore the correct answer is:

“The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually decreases for 5 minutes.”

 

In real life cardiac exercises, we can interpret that the period from 0 to 6 min is the period where the person is still warming up thus leading to an increase in heart rate. At 6 min, the person is fully warmed up hence reaching a stable heart rate. Then at 25 min, the person starts cooling down which means that the exercise is ending soon.

5 0
3 years ago
What is the ratio for the surface areas of the rectangular prisms shown below, given that they are similar and that the ratio of
Harrizon [31]

Answer:

9 : 1

Step-by-step explanation:

given a linear ratio = a : b, then the corresponding area ratio is

a² : b²

Here the linear ratio of their edges = 3 : 1, hence

ratio of surface areas = 3² : 1² = 9 : 1


4 0
4 years ago
5. What is the simplest way to write
inysia [295]

Answer:

2m+3r-2x-2y

Step-by-step explanation:

2m+3r=2m+3r

-2×x=-2x

-2×y=-2y

answer=2m+3r-2x-2y

6 0
3 years ago
if a pitcher is full of lemonade. Which unit of liquid volume best describes the amount of lemonade in the pitcher? explain
sergij07 [2.7K]
You wouldn't use, cm,m,km,kg,or anything like that.. you would use capacity.. (fancy word for liquid) So, for liquid you would use L, litres or gallons, or millilitres.
7 0
4 years ago
Other questions:
  • If y varies directly as x, and y is 6 when x is 72, what is the value of y when x is 8?
    11·2 answers
  • A cyclist must travel 800 km. how many days will the trip take if the cyclist travels 8 h/day at an average speed of 16 km/h?
    7·1 answer
  • Please help me branniest <br><br> Any answer without proof will be reported
    8·2 answers
  • The vertical shift, k, is the amount every
    6·2 answers
  • Which inequality correctly compares One-third, Five-sixths, and Three-fifths? One-third &lt; Three-fifths &lt; Five-sixths One-t
    7·1 answer
  • ● The short and long hands of a clock are 4 cm and 6 cm long respectively. Find the sum of distance travelled by their tips in 2
    12·2 answers
  • Which of the following relationships would have a
    13·2 answers
  • 1111111111111111111111
    14·2 answers
  • 5th grade math. correct answer will be marked brainliest.
    10·1 answer
  • Does this graph represent a function? Why or why not?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!