Estimate the solution of the system of equations. Write the answer as an ordered pair.

Mathematics

1 answer:

AysviL [449]3 years ago

8 0

(1,2.5) would be the solution to the system of equations

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A bookstore manager marks down the price of older hardcover books,which originally sell for b dollars,by 46 percent. What is the

gladu [14]

We are given original selling price of book = $b.

Price is marked down by 46%.

46% can be written as 46/100 in decimals it would be 0.46.

Therefore, markdown as a decimal is 0.46

Now, markdown is 0.46 of original price = 0.46b

Therefore, new price after marked down can be written by expression =

b - 0.46b = 0.56b.

<h3>Therefore, the expression for the sale price of the hardcover book is 0.56b.</h3>

If original retail price was = $29.00.

The sale price would be 0.56b = 29*0.56 = $15.66.

Total saving = 29-15.66 = $13.34.

Therefore, you save $13.34 by paying the sale price $15.66.

8 0

3 years ago

Read 2 more answers

Students who attend Washington Middle School are either in seventh or eighth grade.

IgorLugansk [536]

Answer:

There are 1240 students at Washington middle school.

Step-by-step explanation:

Percentages and Portions

We can find portions of a whole by correctly managing the percentages of each part. We know 25% of all students at Washington middle school were on the honor roll. From that portion, 60% of the students are seventh graders. That means 40% of the 25% are eight graders, i.e. 40*25%=10% were from eight grade.

We have 10% of all students are 124, thus the number of students are 124/10%=1240

There are 1240 students at Washington middle school.

Let's test the answer. 25% of 1240 students are on the honor roll, which is 310 students. 40% of 310 students are from 8th grade, 40%*310 = 124 as stated in the problem

3 0

3 years ago

If a parallelogram has congruent

o-na [289]

Answer: A

Step-by-step explanation:

The contrapositive of a statement is logically equivalent to the original statement.

6 0

2 years ago

Subtract the quotient of 15 divided by 4 from the sum 33 and 7

weeeeeb [17]

33+7-15/4
=40-3.75
=36.25