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
Iteru [2.4K]
3 years ago
10

Mark for review (Will be highlighted on the review page) 1. Solve this equation: 80 = 3y + 2y + 4 + 1.

Mathematics
1 answer:
saul85 [17]3 years ago
7 0
First combine the like terms 3y + 2y to get 5y. Then combine 4 + 1 to get 5. Your equation will now be 80 = 5y + 5. To solve for y, 5 needs to be subtracted from both sides of the equation leaving 75 = 5y. Final step to solving for y, 5 needs to be divided from each side of the equation leaving the final answer of
15 = y.
You might be interested in
3√12•√6<br><br>please show a step by step explanation ​
Oduvanchick [21]

Answer:  18\sqrt{2}\\\\

This is the same as saying 18*sqrt(2) or you could say 18√2

============================================================

Explanation:

We'll be using this square root rule: \sqrt{A}*\sqrt{B} = \sqrt{A*B}

So we could have this as our steps:

3\sqrt{12}*\sqrt{6}\\\\3\sqrt{12*6} \ \text{ ... Apply the rule mentioned}\\\\3\sqrt{72}\\\\3\sqrt{36*2}\\\\3\sqrt{36}*\sqrt{2} \ \text{ ... Apply the rule again, but in reverse}\\\\3*6*\sqrt{2}\\\\18\sqrt{2}\\\\

Therefore, 3\sqrt{12}*\sqrt{6} = 18\sqrt{2}

The basic idea is to first combine the roots using that rule. From there, we factor the radicand such that we pull out the largest perfect square factor. This will allow us to break the root apart and fully simplify it.

5 0
3 years ago
The first three steps in determining the solution set of the system of equations algebraically are shown.
jolli1 [7]
Since both are equivalent to y, the equations must be equivalent.
x^2-x-3= -3x+5
x^2+2x-8=0

(x+4)(x-2)=0
x=-4, x=2

Plug the values of x in to either equation
y=-3(-4)+5
y= 12+5
y=17

y= -3(2)+5
y=-6+5
y=-1

Final answer: (-4,17) and (2,-1)
8 0
3 years ago
Read 2 more answers
In right triangle PQR, tanP =sqrt 3/2. Find the length of the hypotenuse of triangle PQR.
Aleksandr [31]
\sqrt{ \sqrt{3}^2+2^2} = \sqrt{3+4} = \sqrt{7}
8 0
3 years ago
Which graph best represents the equation 2x + 4y equals negative 8
Hitman42 [59]
You have to solve for y
Subtract 2x to the other side
Divide both sides by 4
y=-1x/2-2
Graph D has a slope of -1/2 and a y-intercept of -2
6 0
3 years ago
Please help me please please please help please help please help please help please help please help please help please help ple
DedPeter [7]

Answer:

its between c or b

Step-by-step explanation:

I've done this test before

5 0
3 years ago
Read 2 more answers
Other questions:
  • 4. A shipping company is considering which of these two boxes to use for shipping. Each box costs the same amount of money to sh
    15·1 answer
  • 6 divided by 2 (1 plus 2) equals
    8·1 answer
  • Leslie and Jenny are two of the partners in a business. Leslie makes $3 in profits for every $4 that Jenny makes. If Jenny makes
    14·1 answer
  • What is a soothsayer?
    10·1 answer
  • What’a the range and mode of 1,1,3,1,4,4,2,1
    5·2 answers
  • Joan's dinner contains 210 grams of carbohydrate, 60 grams of protein, and 52 grams of fat. What percent of kilocalories in this
    12·1 answer
  • I am thinking of a number.
    9·2 answers
  • 10 points Plz answer correctly
    11·2 answers
  • What is the total area of William’s backyard in square feet?
    12·2 answers
  • Please Help me with this ASAP plssss<br> advanced 6th grade
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!