Mai wants to buy a pair of jeans at the mall. The jeans cost $35.00. She has a coupon for that store. She pays $28.00 for the jeans. What was the percent of her discount?

Answer:

3.84 inches squared

Step-by-step explanation:

The area of a triangle is given by the formula:

Area = 1/2 * base * height

In this problem, our side lengths are:

Base = 2.4 inches

Height = 3.2 inches

So, our area can be found:

Area = 1/2 * 2.4 * 3.2 = 3.84 inches squared

Answer:

0.104 = 10.4% probability that at least 2 drive without a seatbelt.

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they drive without a seatbelt, or they do not. The probability of a person driving without a seatbelt is independent of any other person. This means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

20% of the people in Fiji drive the car without seatbelt.

This means that [tex]p = 0.2[/tex]

3 people are randomly selected

This means that [tex]n = 3[/tex]

Find the probability that at least 2 drive without a seatbelt?

This is:

[tex]P(X \geq 2) = P(X = 2) + P(X = 3)[/tex]

In which

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 2) = C_{3,2}.(0.2)^{2}.(0.8)^{1} = 0.096[/tex]

[tex]P(X = 3) = C_{3,3}.(0.2)^{3}.(0.8)^{0} = 0.008[/tex]

[tex]P(X \geq 2) = P(X = 2) + P(X = 3) = 0.096 + 0.008 = 0.104[/tex]

0.104 = 10.4% probability that at least 2 drive without a seatbelt.

Answer:

its 77 degrees

Step-by-step explanation:

the angles altogether are 180 so you subtract 61 and 42 and get 77

Answer:

82°

Step-by-step explanation:

total wine of quadrilateral=360°

130+ 46+ 102 +x =360

x=360- 278

x=82°

Answer:

-13 = x

Step-by-step explanation:

:))

Answer: x = 13

Step-by-step explanation:

First subtract -4 on both sides because your adding by 4

-x + 4 = -9

    -  4    -4

The 4 - 4 cancels out

So, -9 - 4 is -13

Then we change the sign because we cannot leave x negative.

-x = -13

x = 13  

Answer:

21+35

Step-by-step explanation:

use distributive property, multiply 7 by the two numbers in the parenthesis

keep the problem though.

Answer:

do you still need help?

Step-by-step explanation:

Answer:

x = 29

Step-by-step explanation:

Multiply both sides by 7:

[tex]4x-4=\frac{7x+21}{2}[/tex]

Multiply both sides by 2:

[tex]8x-8 = 7x+21[/tex]

Subtract 7x from both sides:

[tex]x-8=21[/tex]

Add 8 to both sides

[tex]x=29[/tex]

Answer:

One example would be y = -3x

Step-by-step explanation:

We can more easily find a line parallel to the given equation if it is put in slope intercept form.

3y = -27 - 9x

y = -3x - 9

So the slope is -3. You can choose any line also with a slope of -3.

Answer:

.37 years

Step-by-step explanation:

I did this one in delta math

Answer:

[tex] - 4(x - 1) = 16 \\ = > - 4x + 4 - 16 = 0 \\ = > - 4x - 12 = 0 \\ = > - 4x = 12 \\ = > x = - 3[/tex]

Answer:

5

Step-by-step explanation:

5+2 = 7

7x4 = 28

Answer:

1) D ; 2) E ; 3) B ; 4) C ; 5) A

Step-by-step explanation:

Answer:

1. Corresponding = D

2. Alt Interior = E

3. Vertical = B

4. Alt Ext = C

5. Straight = A

Answer:

X = 6°

Step-by-step explanation:

In a set of parallel lines, the opposite angles and corresponding angles are similar. Since the opposite angle of 110° is the corresponding angle of 19x - 4, you can conclude that 19x - 4 = 110° ⇒ 19x = 114° ⇒ x = 6°.

Answer:

itz A

Step-by-step explanation:

Love you hun;)

Answer:

Step-by-step explanation:

Hhff

Answer:

15.70

Step-by-step explanation:

Answer:

78.5

Step-by-step explanation:

Formula: a = πr², r = d/2

Given: π = 3.14, d = 10

Sub: a = (3.14)r²

Find r.

r = 10/2

r = 5

Sub: a = (3.14)5²

Simplify: a = (3.14)25

Solve: a = 78.5

The answer is 78.5.

If this truly helped you, help me out by thanking me.

-Xax.

Answer:

21

Step-by-step explanation:

Answer:

Step-by-step explanation:

Its going to be a negative

negative, if wrong so sorry

Answer:

x  y

1   3

2   6

3    9

Step-by-step explanation:

That's the answer for Plato correct!

Answer:

0.41

Step-by-step explanation:

0.25 0.375 0.5 0.625

Answer:

ask ur question i will try to help

Step-by-step explanation:

Answer:

y = 90

Step-by-step explanation:

If y varies jointly as x and z, then;

y = kxz

If y = 18 when x = 2 and z = 3

18 = k(2)(3)

18 = 6k

k = 18/6

k = 3

To get y when x = 5 and z = 6

y = kxz

y = 3(5)(6)

y = 15*6

y = 90

Hence the value of y is 90

Answer:

x = 4

Step-by-step explanation:

Answer:

x=4

Step-by-step explanation:

Step 1: Subtract 7x from both sides.

11x−6−7x=7x+10−7x

4x−6=10

Step 2: Add 6 to both sides.

4x−6+6=10+6

4x=16

Then you divide both sides by 4

and get x=4

Hope it helps :)

Answer:

B

Step-by-step explanation:

Answer:

(2,−4).

Step-by-step explanation:

Hope this helps and have a wonderful day!!!!