3 years ago

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

Mathematics

1 answer:

svet-max [94.6K]3 years ago

3 0

Answer:

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.

You might be interested in

Is 4/13 or 6/13 greater than less than or equal too

Ymorist [56]

Answer:

Less than.

Step-by-step explanation:

Because they have the same denominator, you can ignore them and just look at the numerator. 4 < 6.

4 0

2 years ago

Abigail Hot 97 apples she gave 19 to her mom 13 to her dad and 19 from Sister how many more apples does Abby have left

SIZIF [17.4K]

46 apples left for Abby

7 0

2 years ago

SOMEONE PLEASE HELP ME<br><br> Geometry <br> Lesson 1.1 Practice

otez555 [7]

Answer:

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

4w+5z=30 solve for w

zepelin [54]

Answer:

$w=\frac{30-5z}{4}$

Step-by-step explanation:

$4w+5z=30\\\\4w+5z-5z=30-5z\\\\4w=30-5z\\\\\frac{4w=30-5z}{4}\\\\\boxed{w=\frac{30-5z}{4}}$

Hope this helps.

3 0

3 years ago

Ramu and ravi borrowed rs 8000

Phoenix [80]

Answer: Rs. 11,520

Step-by-step explanation:

As the method of compounding is not stated, the default of simple interest will be used.

Simple interest is a fixed amount that is paid over the course of the loan and is based on the original amount borrowed.

Formula is:

Amount owed = Amount borrowed * ( 1 + rate * time)

= 8,000 * ( 1 + 8% * 5.5 years)

= 8,000 * 1.44

= rs 11,520

4 0

2 years ago