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
Sholpan [36]
3 years ago
11

Using coupons, you spend $120 grocery shopping. This is 80% of the total retail price of the groceries. How much would you have

spent if you had not used the coupons?
Mathematics
1 answer:
tatiyna3 years ago
6 0
Hey. Good afternoon.

120$ --- 80%
   x    --- 100%
80x = 12000
x = 12000/80
x = 150$

Sorry my bad english, i'm Brazilian.
You might be interested in
3 students are 15% of what
geniusboy [140]

Answer:

20

Step-by-step explanation:

Calculate 10% of total = 3 / 1.5 = 2

Multiply by 10x since 10% is 1/10 of 100%

2 x 10 = 20

6 0
3 years ago
Simplify 1/3 12x - 6<br> A. -2x-1<br> B.-2x-8<br> C.-x+4<br> D.3x+10<br> E. 4x-2
Natali5045456 [20]
1/3(12x - 6)

4x - 2: e
4 0
3 years ago
Find the output of the function y = x - 16 if the input is -28.<br> Help please
Serhud [2]

Answer:

-44

Step-by-step explanation:

If the input is -28, that means x = -28, so we plug -28 in for x and solve for y, which is the output:

y = x - 16

y = -28 - 16 = -44

The answer is thus -44.

5 0
3 years ago
show that the sum of the x- and y- intercepts of any tangent line to the curve sqrt(x) sqrt(y) = sqrt(c) is equal to c.
expeople1 [14]
The answer is <span>√x + √y = √c </span>
<span>=> 1/(2√x) + 1/(2√y) dy/dx = 0 </span>
<span>=> dy/dx = - √y/√x </span>

<span>Let (x', y') be any point on the curve </span>
<span>=> equation of the tangent at that point is </span>
<span>y - y' = - (√y'/√x') (x - x') </span>

<span>x-intercept of this tangent is obtained by plugging y = 0 </span>
<span>=> 0 - y' = - (√y'/√x') (x - x') </span>
<span>=> x = √(x'y') + x' </span>

<span>y-intercept of the tangent is obtained by plugging x = 0 </span>
<span>=> y - y' = - (√y'/√x') (0 - x') </span>
<span>=> y = y' + √(x'y') </span>

<span>Sum of the x and y intercepts </span>
<span>= √(x'y') + x' + y' + √(x'y') </span>
<span>= (√x' + √y')^2 </span>
<span>= (√c)^2 (because (x', y') is on the curve => √x' + √y' = √c) </span>
<span>= c.  hope this helps :D</span>
5 0
3 years ago
Use the distributive property to remove the parentheses.
blagie [28]

Answer:

Step-by-step explanation:

10x^2(3x^2 - 5x)                       Remove the brackets (Distributive Property)

10*3*x^2 * x^2 - 5x * 10x^2

30 x^(2 + 2) - 5*10x^(2+1)

30x^4 - 50x^3

6 0
2 years ago
Other questions:
  • there is one plane that leaves from the city to the ski resort every hour. the first plane leaves at 10 the last plane leaves at
    5·1 answer
  • A hypothesis test was conducted to investigate whether the population proportion of students at a certain college who went to th
    9·1 answer
  • Simplify 7y exponent 2- y exponent 2=
    5·2 answers
  • How do i solve this equation 5x-3y=12 for y
    14·1 answer
  • what is the distance between the points (4, 5) and (10, 13) on a coordinte plane a. 12 units b. 8 units c. 10 units d. 14 units
    7·1 answer
  • Please solve B, C, D, E, and F and I will give Brainliest!
    13·1 answer
  • Two eights of the championship football game tickets sold for under $30. One eighth of the tickets sold for more than $100. What
    12·1 answer
  • A spinner is evenly divided into red, yellow, blue, green and orange sections. What is the probability of spinning a yellow?
    10·2 answers
  • What percent of 150 is 78?​
    5·2 answers
  • Name at least 5 angles for this diagram
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!