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
kherson [118]
3 years ago
5

Write a proportion to find how many points x a student needs to score on a test worth 50 points to get a test score of 78%.

Mathematics
1 answer:
olganol [36]3 years ago
4 0
The answer is:  "39 points" .
_______________________________________________________
Explanation:
_______________________________________________________
" x/ 50 = 78/100 " ;   in which "x" equals the number of points needed.

_______________________________________________________

To solve for "x" ; 
_______________________________________________________

Look at the denominators:  50 * (what value?) = 100.

→ "100 ÷ 50 = 2" .

→ So;  "50 * 2 = 100" ; 

So, let us look at the numerators:

x * 2 = 78 ; 

↔  2x = 72 ; 

Divide each side of the equation by "2" ; to isolate "x" on one side of the equation ; and to solve for "x" ;
_____________________________________________
 →  78 ÷ 2 = 39 ;

The answer is:  "39 points" .
_____________________________________________


You might be interested in
Mr Abraham is able to divide the learners in his mathematics class into equal groups of 2, 5 or 6 without leaving any learners o
IRISSAK [1]

Answer:

30

Step-by-step explanation:

Find the lowest number divisible by both 6, 5, and 2.

To start, let's list off the numbers divisible by six, and see if we can check any of them off for 5. Since both 2 and 6 are even numbers, we know that if a number is divisible by 6, it's divisible by 2.

6 12 18 24 30 36 42 48 54 60

All of these numbers are divisible by two. Let's find the lowest one that is divisible by 5. We know this by either the umber ending in 5 or 0.

30 is the lowest number that is divisible by 2, 5, or 6.

3 0
3 years ago
Can anybody help me with this this is all I need for today and it is for a grade. PLEASE HELP
zzz [600]
Not proportional, because the 185 divided by three isn’t 65. However, the others were 65 so it wasn’t consistent.

The constant would be 65.
4 0
3 years ago
Which equation correctly applies the distributive property?
Elodia [21]

Answer:

−3⋅(6.48)=(−3⋅6)+(−3⋅0.4)+(−3⋅0.08)

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
How to calculate the sin, cos, and tan. (Trigonometry)
Kryger [21]

Answer:

Please see the attached picture for full solution.

7 0
3 years ago
What is the distance from (6, -8) to the origin?
Flauer [41]
You have to use Pythagoras' theorem for this!

The triangle formed is 6 units across, and 8 units down, which means we can form an equation like this:

a^2 + b^2 = c^2
6^2 + 8^2 = c^2
36 + 64 = c^2
100 = c^2
c = 10.

The answer is 10 :)
7 0
3 years ago
Other questions:
  • What is the coefficient of the second term of the trinomial? (4a+5)2=16a2+Ba+25 Enter your answer in the box. B =
    12·1 answer
  • In the data set below, what is the mean absolute deviation?
    10·1 answer
  • The touchdown to fumble ratio for Bobby Boucher was 9:2 If Bobby ran for 18 touchdowns,
    12·1 answer
  • If a line segment contains one endpoint at (2,3) and has a midpoint of (-2,6) what is the second endpoint of the line segment
    15·1 answer
  • How do I make 4(x+3)=3(3x-1) into a simpler form without parentheses. Then substitute 3 for x.
    11·2 answers
  • Find the length of the rectangle whose area is 99 square inches and the width is 9 inches.
    15·1 answer
  • (1.5×<br> 10<br> −7<br> )×(3.6×<br> 10<br> 15<br> )÷(1.2×<br> 10<br> −3<br> )=
    15·1 answer
  • If p(x) = x2 – 1 and q (x) = 5 (x minus 1), which expression is equivalent to (p – q)(x)?
    5·2 answers
  • I'm asking this question again because the other picture didnt show the full picture. x = 2 and y = 3​
    5·2 answers
  • Answer this question please ASAP!!
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!