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
kvasek [131]
2 years ago
14

A student finished 72 of her homework problems in class. If the ratio of problems she finished to problems she still had left wa

s 8 : 1, how many homework problems did she have total?
Mathematics
1 answer:
kramer2 years ago
4 0


Finished:Left

8:1

8/1 = 72/x

Cross Multiply

8x=72

divide each side by 8

x=9

She already finished 72 and has 9 remaining

Total = Finished + Remaining = 72 + 9 = 81

You might be interested in
15 - 1/2 x 2 equals 14, but i dont know the steps
zloy xaker [14]
Remember PEMDAS - parentheses, exponents, multiply, divide, add, subtract

because multiply come before subtract, your first step would be 1/2 x 2 = 1

next, you subtract -> 15 - 1 = 14

14 is your answer
3 0
2 years ago
What is the area of the equilateral triangle, rounded to the nearest tenth? 2.7 cm2 4.1 cm2 16.2 cm2 24.2 cm2
Paul [167]

The area of the equilateral triangle with the given perimeter is 24.2cm².

Hence, option D)24.2cm² is the correct answer.

This question is incomplete, the complete question is:

An equilateral triangle has an apothem measuring 2.16 cm and a perimeter of 22.45 cm. What is the area of the equilateral triangle, rounded to the nearest tenth?

<h3>What is a triangle?</h3>

A triangle is simply a two-dimensional polygon with 3 sides and 3 interior angles.

An equilateral triangle is a triangle with all its three sides having the same length

The area of an equilateral triangle is expressed as;

A = ((√3)/4)a²

Where a is the length of the side

Perimeter of an equilateral triangle is expressed as;

P = 3a

Where a is the length of the side

Given that the perimeter of the equilateral triangle is 22.45 cm, the sides of the triangle will be;

P = 3a

22.45cm = 3a

a = 22.45cm / 3

a = 7.48cm

Now, the area of the equilateral triangle will be;

A = ((√3)/4)a²

A = ((√3)/4) × (7.48cm)²

A = 0.433 × 55.9504cm²

A = 24.2cm²

The area of the equilateral triangle with the given perimeter is 24.2cm².

Hence, option D)24.2cm² is the correct answer.

Learn more about triangles here: brainly.com/question/19305981

#SPJ4

5 0
2 years ago
Find 4+ (-1 2/3). Write your answer in simplest form.
kramer

Answer:

The answer is -5 1/3

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
(a(1) = 5/3<br> (a(n) = a(n − 1).(-9)<br> What is the 3rd term in the sequence?
nataly862011 [7]

Answer:-30

Step-by-step explanation:

Third term=a3

an=a(n-1) x (-9)

a3=5/3 x (3-1) x (-9)

a3=5/3 x 2 x -9

a3=(5x2x-9)/3

a3=-90/3

a3=-30

5 0
3 years ago
What is the slope of the line represented by the equation?<br> –2x + y = –1
Harrizon [31]
Isolate the y to one side so we get: y = 2x - 1
The slope of the line is 2.
8 0
2 years ago
Read 2 more answers
Other questions:
  • *******ASAP******
    12·1 answer
  • 4 vd<br> 6 yd<br> 20 yd<br> Surface Area =
    6·2 answers
  • 2 3/8 - 3/4 please solve that problem just please
    5·1 answer
  • A city's population is currently 150,500. If the population doubles every 62 years, what will
    11·1 answer
  • How do you write an equation given (2,3); m=2
    9·2 answers
  • Please help me with this question. Algebra 2 is hard!!
    12·1 answer
  • Explain the
    10·1 answer
  • An angle measures 3.8° more than the measure of its complementary angle. What is the measure of each angle?
    15·1 answer
  • Write the equation (in point-slope form) for the line parallel to y = x + 4 and passes
    8·2 answers
  • Please help. tap the photo to see the whole problem. thanks. ​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!