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
Lena [83]
1 year ago
14

Please help! This assignment is due soon! (In The photo)

Mathematics
1 answer:
eimsori [14]1 year ago
4 0

Answer

Elena must have substracted 1/2x from both sides of the equation.

Lin must have multiplied both sides of the equation by 2

Explanation

The equation given is

\frac{1}{2}x+3=\frac{7}{2}x+5

For Elena to have arrived at

3=\frac{7}{2}x-\frac{1}{2}x+5

Then Elena must have substracted 1/2x from both sides of the equation.

That is;

\begin{gathered} \frac{1}{2}x+3=\frac{7}{2}x+5 \\ \text{Substracting }\frac{1}{2}x\text{ from both sides of the equation will give Elena first step} \\ \frac{1}{2}x+3-\frac{1}{2}x=\frac{7}{2}x+5-\frac{1}{2}x \\ 3=\frac{7}{2}x-\frac{1}{2}x+5 \end{gathered}

For Lin to have arrived at

x+6=7x+10

It shows Lin must have multiplied both sides of the equation by 2

That is;

\begin{gathered} \frac{1}{2}x+3=\frac{7}{2}x+5 \\ \text{Multiply both sides of the equation by the lowest common mutiple } \\ \text{of the denominator which is 2.} \\ \frac{1}{2}x(2)+3(2)=\frac{7}{2}x(2)+5(2) \\ x+6=7x+10 \end{gathered}

You might be interested in
On the graph, △DEF was transformed to create △DGH.
mafiozo [28]

Answer:

it's B

Step-by-step explanation:

by analyzing it I figured it was 100% B

8 0
2 years ago
Read 2 more answers
Which quadratic equation is equivalent to (x + 2)2 + 5(x + 2) – 6 = 0?
Darya [45]
Quadratic is in the form
ax^2+bx+c=0

so distribute and stuff and simplify
remember
a(b+c)=ab+ac

(x+2)^2+5(x+2)-6=0
remember order of opertaions
(x+2)(x+2)+5(x+2)-6=0
x^2+4x+4+5x+10-6=0
add like terms
x^2+9x+8=0
3 0
3 years ago
Read 2 more answers
An altitude is drawn from the vertex of an isosceles triangle, forming a right angle
Hatshy [7]

Answer:56.8 inches

Step-by-step explanation:

For perimeter we must find the lengths of the 2 diagonal sides of the triangle which are the same because it is isosceles.

the triangle is cut directly in half so both halves of the base are 17/2

17/2 = 8.5

solve through pythagoren theorum

altitude^2 + (half of base)^2 = (diagonal length)^2

18^2 + (8.5)^2 = (diagonal length)^2

324 + 72.25 = (diagonal length)^2

396.3 = (diagonal length)^2

\sqrt{396.3} = diagonal length

diagonal length = 19.9

diagonal length + diagonal length + base = perimeter

19.9 + 19.9 + 17 = perimeter

56.8 inches = perimeter

6 0
2 years ago
PLEASE HELP ME WITH THIS MATH PROBLEM
pychu [463]

Answer:

A'(-1, -1)

Step-by-step explanation:

Dilation about the origin multiplies each individual coordinate value by the dilation factor.

A' = (1/3)A = (1/3)(-3, -3) = (-1, -1)

8 0
3 years ago
Read 2 more answers
2x+1&lt;9<br> I need help with this question
tia_tia [17]

Answer: x<4

Step-by-step explanation: Let's solve your inequality step-by-step.

2x+1<9

Step 1: Subtract 1 from both sides.

2x+1−1<9−1

2x < 8

Step 2: Divide both sides by 2.

2x /2  <  8 /2

x<4

4 0
3 years ago
Other questions:
  • The length of a classroom is 34 feet. What is the measurement in yards and feet?
    10·1 answer
  • 2(m+10)=4(m-15) I need the answer to this ASAP
    15·2 answers
  • How to find a least common demoniator
    5·1 answer
  • A bag contains yellow marbles and green marbles, 66 in total. The number of yellow
    7·1 answer
  • Which statement is true?
    12·2 answers
  • In a two-digit number, the units digit is 5 more than the tens digit. The number is 6 less than 4 times the sum of the digits. F
    10·1 answer
  • Hurry Need Help I Will Give You Brainliest!!
    10·2 answers
  • The inner circle circumference is 52 ft. the distance between the inner and the outer circle is 8ft. By how many ft is the outer
    8·1 answer
  • No it wouldnt because quadrant one is ++ so how is it that
    11·2 answers
  • Given these angles: m∠3 = 82°, m∠4 = 98°.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!