kjtheking21
kjtheking21 kjtheking21
  • 21-05-2019
  • Mathematics
contestada

Patrica scored 80% on a math test. She missed 4 problems. How many problems were on the test?

Respuesta :

MathPhys
MathPhys MathPhys
  • 21-05-2019

Answer:

20

Step-by-step explanation:

Patrica got 80% correct.  She missed 4 problems, so that must have been the remaining 20% of the test.

Therefore:

4 = 20% x

Percent means out of 100, so:

4 = (20/100) x

4 = 1/5 x

x = 20

There were 20 problems on the test.

Answer Link

Otras preguntas

What is 4/5 equal to?
which statement about sentence lengths in a written piece is true
The table shows there are 24 number of books Salvador has read.Find the ratio of mystery books 10 to the total. Explain its meaning
Which mixture can be separated using filtration? Choose ALL answers that are correct. A. insoluble solids in water B. soluble solids in w
What was the reaction of other Native American groups to King Philip's war?
when economist use the term laissez-faire what economic idea are they referring to
How do you figure out longitude and latitude...
Cell structures that plant and animal cells don't share are _____.
which of these events influenced the formulation of the truman doctrine
The major turning point in Greek history is the ___. A) Persian Wars B)Trojan Wars C) Hundred Year Wars