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
dem82 [27]
3 years ago
8

Angela tried to solve an equation step by step. \begin{aligned} \dfrac34+m&=\dfrac54\\\\ \dfrac34+m-\dfrac34&=\dfrac54+\

dfrac34&\green{\text{Step } 1}\\\\ m&=2&\blue{\text{Step } 2} \end{aligned} 4 3 ​ +m 4 3 ​ +m− 4 3 ​ m ​ = 4 5 ​ = 4 5 ​ + 4 3 ​ =2 ​ Step 1 Step 2 ​ Find Angela's mistake.
Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
7 0

Answer:

The mistake she made was ; She didn't change the sign when subtracting -3/4 from both sides

She wrote 5/4+3/4 instead of 5/4-3/4

Step-by-step explanation:

Correct solution:

\frac{3}{4}  + m =   \frac{5}{4}

Subtract-3/4 from both sides

\frac{3}{4}  -  \frac{3}{4}  + m =  \frac{5}{4}  -  \frac{3}{4}

Simplify

m =  \frac{5}{4}  -  \frac{3}{4}  \\ m =  \frac{1}{2}

You might be interested in
What is the expression in factored form?x^2+13x+14
nydimaria [60]

Answer:

\left(x-\dfrac{-13+\sqrt{113}}{2}\right)\left(x-\dfrac{-13-\sqrt{113}}{2}\right).

Step-by-step explanation:

To factor the expression x^2+13x+14 you need to know its roots.

First find the discriminant of this quadratic polynomial:

D=13^2-4\cdot 1\cdot 14=169-56=113.

Then the roots of the expression x^2+13x+14 are

x_{1,2}=\dfrac{-13\pm \sqrt{113}}{2}.

Now the factored form is

\left(x-\dfrac{-13+\sqrt{113}}{2}\right)\left(x-\dfrac{-13-\sqrt{113}}{2}\right).

8 0
3 years ago
Fuel for the reasearch vessels will be stored in a cylindrical tank with a radius of 10 meters and a height of 5 meters. Using a
Lemur [1.5K]

The volume of the tank is 1570 cubic meters

<h3>How to determine the volume</h3>

The formula for determining the volume of a cylinder is expressed as;

Volume = πr²h

Where;

  • radius is 10 meters
  • height is 5 meters
  • pi = 3. 14

Now, let's substitute into the formula;

Volume = 3. 14 × 10² × 5

Volume = 3. 14 × 100 × 5

Multiply through

Volume = 1570 cubic meters

Thus, the volume of the tank is 1570 cubic meters

Learn more about volume here:

brainly.com/question/1972490

#SPJ1

6 0
2 years ago
I need help please help me asap!
nexus9112 [7]
C=37.71 or 37.7 you choose
/\
| |
ω 
5 0
3 years ago
You need to buy 200 treats for a party. You can buy cookies at $ 0.80 each or muffins at $1.60 each. Your goal is to spend $200
Agata [3.3K]
You should buy cookies, because .80 x200=160 , which is less than $200
4 0
3 years ago
Of all rectangles with a fixed perimeter of​ p, which one has the maximum​ area? (give the dimensions in terms of​ p.)
TiliK225 [7]
<span>For all rectangles with a fixed perimeter of p the rectangle with the maximum area is one where the length is p/4 and the width is p/4, in other words a square. The area of such a rectangle would be (p*p) /16.</span>
8 0
3 years ago
Other questions:
  • What is the speed of the ball if it travels 19km in 19min
    15·1 answer
  • Find the area of a regular nonagon with a side length of 9 and an apothem of 16
    7·1 answer
  • What is the width of a rectangular room with an are 90 square feet and a length of 9 feet
    5·2 answers
  • Mya is selling tickets for the school
    11·1 answer
  • What is the rate and unit rate of this equation:360 customers in 30 days?
    9·1 answer
  • Explain how you might go from gallons to cups using more than one conversion factor.
    15·1 answer
  • What is the value of 3 five dollar bills and 3 ten dollar bills?
    8·2 answers
  • What is 2x^2(x-5) divided by 10x when x + 10?
    14·1 answer
  • Do you guys mind helping me with this question
    7·1 answer
  • Plot −5/4 and it's opposite on the number line.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!