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
IgorLugansk [536]
4 years ago
7

Write a proportion to find how many points xx a student needs to score on a test worth 80 points to get a test score of 80%.

Mathematics
2 answers:
Ugo [173]4 years ago
8 0
Xx/80 = 80/100 . . . . . . . . . your proportion
Svet_ta [14]4 years ago
3 0

Answer:cross multiply to solve

100x = 50*78

x = 50*78/100

x = 39 points needed to score a 78%

Step-by-step explanation:hope this helps:D

You might be interested in
The range of the function?<br> 1 2 <br> 2 4<br> 3 9<br> 4 16
wariber [46]

Answer:

2,4,9,16

Step-by-step explanation:

2

4

9

16

are range because they are exactly opposite of domain

6 0
2 years ago
Help me pleaseeeeeeeeeeeeeeee
inn [45]

Answer:

1) n^2 – 3 n + 8   4^2 – 3*4 + 8 = 12    

2)    (x^2 – 4 y) / 2      (16 + 12) / 2 = 14

3) 4 * |-7 – 2| = 4 * 9 = 36     Abs -9 = 9  

4) 19 – x^2 = 19 – 25 = -6     (-5)^2 = 25

5) S^2 t – 10 = -8^2 * ¾ -10 = 64 * ¾ - 10 = 38

6) 4 p^2 + 7 q^3 = 4 * 9 + 7 * (-8) =  - 20      (-2)^3 = -8

4 0
3 years ago
Tamika had $35. She just went to the store to buy some snacks and now has $20.50. How much did she spend on snacks?
Komok [63]
The answer is she spent $14.50

7 0
3 years ago
¿Cuál es el volumen de una lata de chícharos que tiene un diámetro de 6 cm<br>y una altura de 8 cm?​
ivanzaharov [21]

Answer:

La respuesta podría ser 226.08 o 72π, dependiendo de si quieren que redondees pi o que solo pongas el símbolo.

Step-by-step explanation:

Para hallar el volumen de un cilindro, hay que primero hallar el área del círculo que tiene, por así decirlo. Entonces sería el radio al cuadrado, o sea 3 por 3 porque el diámetro es 6. Y luego lo multiplicamos por pi, y vendría siendo 9π o 9(3.14). Después, lo multiplicamos por la altura, 8 cm. Lo que nos daría 72π, o 226.08 ya redondeado.

7 0
3 years ago
John is 24 years old. Two years ago, he was twice Shane's age at that time. How old is Shane now?
gtnhenbr [62]

Answer:

Present age of john= 24 years

Let Shane's age= x years

 Two years ago

John's age = 24-2= 22 years

Shane's age = (x-2) years

  Writing in terms of equation,to the above statements

⇒22= 2(x-2)

⇒22= 2 x- 4

⇒22+4 = 2 x

⇒ 2 x= 26

⇒ x= 26÷2

⇒ x =13

Present age of son = 13 years




7 0
3 years ago
Other questions:
  • Fill in the blanks.
    10·1 answer
  • Graph the function f(x)=32x−4. Use the line tool and select two points to graph.
    5·2 answers
  • Which function has no horizontal asymptote?
    5·2 answers
  • Solve for h..-6.2h - 1.2= 0.86
    10·1 answer
  •  
    15·1 answer
  • P (A or B ). P(A or B) indicates​ _______. Choose the correct answer below. A. the probability that A and B both occur in the sa
    11·1 answer
  • 126 divide 6' long division
    10·1 answer
  • How is the equation of this circle written in standard form?<br><br> x2 + y2 - 6x + 14y = 142
    7·1 answer
  • What is 2+2 pls help
    7·1 answer
  • Need help this is last problem in math lol
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!