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3 years ago

The original price of a gold ring is $722. What is the sale price? The sale is 50% off

Mathematics

2 answers:

BabaBlast [244]3 years ago

8 0

Answer:

361$

Step-by-step explanation:

vovangra [49]3 years ago

7 0

Answer:

$361 is the sale price

Step-by-step explanation:

"Half off" on a $722 gold ring is found by expressing 50% as 0.50 and multiplying $722 by 0.50: $361 is the sale price.

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Is 5(2x-3y) and 10x-3y equivalent?

stiks02 [169]

Answer:

Step-by-step explanation:

Apply the distributive property to 5(2x - 3y):

Multiply 5 by each term inside the parentheses.

5(2x - 3y) = 10x - 15y

The other expression is 10x - 10y.

The terms 10x in both expressions are equal.

Since the term -15y is not equal to the term -10y, the expressions are not equivalent.

3 0

3 years ago

What is the slope of y= -7/5x +4

dem82 [27]

Y= -7/5x + 4

To find -intercept/zero, substitute

Multiply both sides of the equation by

0= -7/5x +4

Move the variable to the left-hand side and change its sign

0= -7x +20

Divide both sides of the equation by

7x=20
20/7 = 2 6/7 = x 2.857

6 0

3 years ago

Read 2 more answers

NEED HELP FAST WILL GIVE BRAINLIEST

Brrunno [24]

In a music stadium, 35th row has 120 seats

and explicit formula is  $a_{n}=3n+15$ is explicit formula for given sequence.

Step-by-step explanation:

In music stadium, there are 18 seats in first row and 21 seats in second row and it is continuously increasing by 3

Here, Arithmetic sequence is 18,21,24,27.....120

There Arithmetic sequence is given as a,a+d,a+d......a+(n-1)d

Where, a = First term = 18 and d = Increment = 3

Q (a) Write an explicit rule to model the sequence formed by the number of seats in each row.

Now, Create an explicit formula

$a_{n}=a+(n-1)d$

$a_{n}=18+(n-1)(3)$

$a_{n}=18+(3n-3)$

 $a_{n}=3n+15$ is explicit formula for given sequence.

Q (b) Use the rule to determine which row has 120 seats.

Given $a_{n}=120$

To determine which row has 120 seats.

$a_{n}=3n+15$

$120=3n+15$

$105=3n$

$n=35$

Therefore, 35th row has 120 seats

8 0

3 years ago

Find (f ∘ g)(-6) when f(x) = 9x + 2 and g(x) = -9x2 - 2x + 1.

Salsk061 [2.6K]

Given that the two functions are $f(x)=9x+2$ and $g(x)=-9x^2-2x+1$

We need to determine the value of $(f \circ g)(-6)$

The value of $(f \circ g)(x)$ :

The value of $(f \circ g)(x)$ can be determined using the formula,

$(f \circ g)(x)=f[g(x)]$

Substituting $g(x)=-9x^2-2x+1$ in the above formula, we get;

$(f \circ g)(x)=f[-9x^2-2x+1]$

Now, substituting $x=-9 x^{2}-2 x+1$ in the function $f(x)=9x+2$ , we get;

$(f \circ g)(x)=9(-9x^2-2x+1)+2$

$(f \circ g)(x)=-81x^2-18x+9+2$

$(f \circ g)(x)=-81x^2-18x+11$

Thus, the value of $(f \circ g)(x)$ is $(f \circ g)(x)=-81x^2-18x+11$

The value of $(f \circ g)(-6)$ :

The value of $(f \circ g)(-6)$ can be determined by substituting x = -6 in the function $(f \circ g)(x)=-81x^2-18x+11$

Thus, we have;

$(f \circ g)(-6)=-81(-6)^2-18(-6)+11$

$(f \circ g)(-6)=-81(36)-18(-6)+11$

$(f \circ g)(-6)=-2916+108+11$

$(f \circ g)(-6)=-2797$

Thus, the value of $(f \circ g)(-6)$ is -2797

Hence, Option B is the correct answer.

8 0

4 years ago

Find the magnitude and direction angle for the vector v = 3 cos 123°i + 3 sin 123°j.

Alika [10]

The vector written in its generic form is given by:
v = lvl cos theta ° i + lvl without theta ° j
Where.
lvl: magnitude of the vector
theta: angle of the vector with respect to the x axis.
For this case we have the following vector:
v = 3 cos 123 ° i + 3 without 123 ° j
Where,
lvl = 3
theta = 123 °
Answer:
The magnitude and direction angle for the vector v is:
D. 3, 123 °

8 0

4 years ago