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
Juli2301 [7.4K]
3 years ago
14

A. The sum of Andre and Brandon scores on a math quiz is 180. Andres score is 2 times more than 30 less than Brandon score. Find

each students quiz score.
B. Solve the inequalities.
100x-200>50x-75
Mathematics
1 answer:
pantera1 [17]3 years ago
8 0
A)

a+b=180 and a=2(b-30) using this in the first equation gives you:

2(b-30)+b=180

2b-60+b=180

3b-60=180

3b=240

b=80 so a=100

Andre's score was 100 and Brandon's score was 80.

b)

100x-200>50x-75  subtract 50x from both sides

50x-200>-75  add 200 to both sides

50x>125  divide both sides by 50

x>2.5
You might be interested in
Find the area of the region in two ways. a. Using integration with respect to x. b. Using geometry. 9-x
Natali [406]

Answer: hello your question is incomplete attached below is the complete question

answer :

a)   \int\limits^3_0 {(10-x)-(x+4)} \, dx     ( option D )

b) A =  1/2 (6)(3)   ( option B )

c) Area of shaded region = 9

Step-by-step explanation:

<u>a) Using integration with respect to x </u>

Area =   \int\limits^7_4 {(y-4)} \, dy + \int\limits^a_7 {(10-y)} \, dy         ( note a = 10 )

          = y^2/2 - 4y |⁷₄  + 10y - y^2/2 |¹⁰₇

          = 33/2 - 12 + 30 - 51/2   = 9

hence the best integral from the options attached is option D

\int\limits^3_0 {(10-x)-(x+4)} \, dx

= [ 10x - x^2 /2 - x^2/2 - 9x ] ³₀

= 30 - 9/2 - 9/2 - 12  = 9

<u>b) Using Geometry </u>

Area = 1/2 * base * height

        = 1/2 * 6 * 3

        = 9

7 0
3 years ago
how long will it take for an investment of 2000 to double given an annual interest rate of 6% compounded monthly
Agata [3.3K]
It will take about 16.66 months for the investment to double.
Hope this helps.
5 0
3 years ago
Q1. In a fruit cocktail, for every 30 ml
lora16 [44]

Answer:

3/10

Step-by-step explanation:

\frac{30}{30 + 20 + 50}   =  \frac{3}{10}

5 0
2 years ago
Is How many oranges did<br> Sally eat last month? a statistical question
Yuri [45]

Answer:

25

Step-by-step explanation:

Lets say it's a 30 day month. Sally really likes oranges so she eats them a lot.

8 0
2 years ago
Find the exact solution of the system of equations of x^2+y^2-4x-6y+4=0 and x^2-4x-3y+4=0
gavmur [86]
We can readily know the x^2-4x+4=3y then use it to replace the same function in the first equation which refers to the 3y+y^2-6y=0 
                                                              y^2-3y=0
                                                             y(y-3)=0
                                                               y1=0 -----------y2=3
7 0
3 years ago
Other questions:
  • WORTH EXTRA POINTS! Pythagrem theroem 7th grade math EASY. Will mark brainliest
    8·1 answer
  • Samantha is making soup. To make the broth, she combines 2/3 cup of vegetable stock and 2/3 cup of chicken stock. Boiling the br
    11·1 answer
  • Show that the curve y=2e^x + 3x +5x^3 has no tangent line with slope 2
    11·1 answer
  • Can someone show me the work to this?
    7·1 answer
  • What do the following two equations represent? y-8 +5) y-8- +5) Choose 1 answer: The same line Distinct parallel lines Perpendic
    14·1 answer
  • Write an equation of the line shown. Then use the equation to find the value of x when y = 150​
    7·1 answer
  • Jeremy bought a $60 pair of sneakers on sale for 15% off. Then, he used a coupon that gave him an additional 10% off. Can Jeremy
    14·1 answer
  • Jill wants to find the quotient use multiplication and distributive property to help Jill find the quotient of 144 divided by 8
    9·2 answers
  • Camilo tiene $840pesos que debe repartir en partes iguales Y sin que sobre .Entre sus 6hijos ¿Cuánto le tocará a cada uno de sus
    10·1 answer
  • I’m stuck on this. Help!!!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!