HELP <br> when 10 is the input, the output is 1.0. what would the output be if the input was 9

A pair of jeans cost $89. A jean jacket costs twice as much. What is the total cost of a jean jacket and 4 pairs of jeans

PolarNik [594]

Jean jacket cost 178$ and 4 of jeans cost 356$ total is 534

7 0

3 years ago

Which pair shows equivalent expressions?

DENIUS [597]

2( $\frac{2}{5}$ x + 4) = $\frac{4}{5}$ x + 4 which is the second option is the equivalent expression.

Explanation:

First, we need to calculate the value of two-fifths of x. It means 2 portions out of the five portions of x which equates to $\frac{2}{5}$ x.

Now we calculate the values of the two expresssions on the LHS.

1) 2 (two-fifths x + 2) = 2 ( $\frac{2}{5}$ x + 2) = $\frac{4}{5}$ x + 4.

2) (two-fifths x + 4) = 2( $\frac{2}{5}$ x + 4) = $\frac{4}{5}$ x + 8.

Now we determine values of the four expressions on the RHS.

1) Two and two-fifths x + 1 = 2 $\frac{2}{5}$ x + 1

2) Four-fifths x + 4 = $\frac{4}{5}$ x + 4

3) Four-fifths x + 2 = $\frac{4}{5}$ x + 2

4) Two and two-fifths x + 8 = 2 $\frac{2}{5}$ x + 8.

Out of the various LHS and RHS values, the $1^{st}$ LHS value and $2^{nd}$ RHS value is the same. So option 2 is the answer.

7 0

3 years ago

Read 2 more answers

An elementary school is offering 3 language classes: one in Spanish, one in French,and one in German. The classes are open to an

Alona [7]

Answer:

A. 0.5

B. 0.32

C. 0.75

Step-by-step explanation:

There are

28 students in the Spanish class,
26 in the French class,
16 in the German class,
12 students that are in both Spanish and French,
4 that are in both Spanish and German,
6 that are in both French and German,
2 students taking all 3 classes.

So,

2 students taking all 3 classes,
6 - 2 = 4 students are in French and German, bu are not in Spanish,
4 - 2 = 2 students are in Spanish and German, but are not in French,
12 - 2 = 10 students are in Spanish and French but are not in German,
16 - 2 - 4 - 2 = 8 students are only in German,
26 - 2 - 4 - 10 = 10 students are only in French,
28 - 2 - 2 - 10 = 14 students are only in Spanish.

In total, there are

2 + 4 + 2 + 10 + 8 + 10 +14 = 50 students.

The classes are open to any of the 100 students in the school, so

100 - 50 = 50 students are not in any of the languages classes.

A. If a student is chosen randomly, the probability that he or she is not in any of the language classes is

$\dfrac{50}{100} =0.5$

B. If a student is chosen randomly, the probability that he or she is taking exactly one language class is

$\dfrac{8+10+14}{100}=0.32$

C. If 2 students are chosen randomly, the probability that both are not taking any language classes is

$0.5\cdot 0.5=0.25$

So, the probability that at least 1 is taking a language class is

$1-0.25=0.75$

3 0

4 years ago

Solve the quadratic equation.<br> 4x2 - 9 = 0

fenix001 [56]

(2x +3)(2x-3)= 0

x= -3/2 x = 3/2

4 0

3 years ago

Read 2 more answers

The amount of money raised at a charity

DochEvi [55]

9514 1404 393

Answer:

$1200

Step-by-step explanation:

60 attendees is 12 times 5 attendees, so we expect the amount raised to be 12 times $100.

$1200 will be raised for 60 attendees.

8 0

3 years ago

HELP when 10 is the input, the output is 1.0. what would the output be if the input was 9