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9514 1404 393

Answer:

  (2, 3)

Step-by-step explanation:

The coefficients of x are opposites, so the x-terms can be eliminated by adding the two equations together:

  (2x+3y) +(-2x+5y) = (13) +(11)

  8y = 24 . . . simpify

  y = 3 . . . . . divide by 8

Only one answer choice has y = 3: (x, y) = (2, 3).

__

If you like, you can finish the solution by substituting into one of the equations.

  2x +3(3) = 13

  2x = 4 . . . . . . . subtract 9

  x = 2 . . . . . . . . divide by 2

The solution is (x, y) = (2, 3).

_____

A graph confirms this solution.

Answer:

5/12 , 1/2 , 3/5 , 3/4

Step-by-step explanation:

i gave them all a common denominator then ordered them

give brainliest please

Answer:

[tex]x^2+3x+2[/tex]

Step-by-step explanation:

[tex](x+2)(x+1)\\x^2+2x+x+2\\x^2+3x+2[/tex]

use F.O.I.L.

Answer:

7

Step-by-step explanation:

4+3=7

Answer:

There were 12 gold coins in the chest at the start.

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

x = Number of gold coins in a chest

1/2x = Number of gold coins taken by the captain

1/4x = Number of gold coins taken by Sally

3 = Number of gold coins left

2. How many coins were in the chest at the start?

Let's write the following equation to solve for x:

1/2x + 1/4x + 3 = x

2x + x + 12 = 4x (Lowest Common Denominator is 4)

4x - 2x - x = 12 (Like terms)

x = 12

There were 12 gold coins in the chest at the start.

Hope this helps :D

The simple interest earned on $530 at 5.5% rate for 1 years is $31.80.

The formula for simple interest is expressed mathematically as;

I = P × r × t

Where I is interest, P is principal, r is interest rate and t is time period.

Given the data in the question;

First, convert the rate from percent to a decimal form

Rate r = 6%

Rate r = 6/100

Rate r = 0.06

To determine the simple interest earned, plug the given values into the simple interest formula and solve for I.

I = P × r × t

I = $530 × 0.06 × 1

I = $530 × 0.06

I = $31.80

Therefore, the simple interest accumulated after 1 years is $31.80.

Learn more about simple interest here: brainly.com/question/25845758

#SPJ1

Answer:

the answer is 6 u welcome

Answer:

1/2

Step-by-step explanation:

went up one across two. rise over run y over x

Answer:

1/2

Step-by-step explanation:

Answer:

Let

[tex]\sf length=x [/tex]

[tex]\sf Breadth={\dfrac {x}{4}}[/tex]

As we know that in a rectangle

[tex]{\boxed{\sf Perimeter=2 (l+b)}}[/tex]

[tex]{:}\longrightarrow\sf 2 \left (x+{\dfrac {x}{4}}\right)=375 [/tex]

[tex]{:}\longrightarrow\sf 2 \left({\dfrac {4x+x}{4}}\right)=375 [/tex]

[tex]{:}\longrightarrow\sf 2 \left({\dfrac {5x}{4}}\right)=375 [/tex]

[tex]{:}\longrightarrow\sf {\dfrac {10x}{4}}=375 [/tex]

[tex]{:}\longrightarrow\sf 10x=4×375 [/tex]

[tex]{:}\longrightarrow\sf 10x=1500 [/tex]

[tex]{:}\longrightarrow\sf x={\dfrac {1500}{10}}[/tex]

[tex]{:}\longrightarrow\sf x=150[/tex]

[tex]\therefore[/tex]Length =150feet

The question above is incomplete

Complete Question

A doctor estimates that a particular patient is losing bone density at a rate of 3% annually. The patient currently has a bone density of 1,500 kg/mg³. The doctor writes an exponential function to represent the situation. Which values should the doctor use for a and b in a function written in the form f(x) = ab^x, where f(x) represents the bone density after x years?

Answer:

a = 1500

b = 0.97

f(x) = ab^x

f(x) = 1500(0.97)^x

f(x) = 1500 × 0.97^x

Step-by-step explanation:

We are to find a and b

This question has to do with exponential decay.

This is written as

y = a(1 - r)^x

f(x) = ab^x

r = rate of exponential decay

f(x) = y

a = a

b^x = (1 - r)^x

a = current bone density of the patient = 1500kg/m³

b = (1 - r)

r = 3% = 0.03

b = (1 - 0.03)

b = 0.97

Therefore,

a = 1500

b = 0.97

Hence:

f(x) = ab^x

f(x) = 1500(0.97)^x

f(x) = 1500 × 0.97^x

There's actually a video on Y ou Tu be for that. :p

Answer: After 25 years

Step-by-step explanation:

You included no intervals as options.

Question however states that Carlos will not close his account before $1,500 is present which means that he will only close this account after the interest has accumulated to $500.

Given that the account makes $20 a year, the number of years it would take to get to $500 is;

= 500/20

= 25 years

Carlos can close the account at any interval after 25 years.

Answer:

|3-4x|<3

Step-by-step explanation:

3-4x<3

-4x<0

x>0

3-4x>-3

-4x>-6

x>3/2

Answer:

sorry bro ion know it i just need points for my testg.

Step-by-step explanation:

Answer:

n>-15 or c

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

128/6=8

Answer:

8.

divide 128 by 16 and its ^

Answer:

A. experience an event through the author's eyes

Step-by-step explanation:

give brainliest please!

Answer:

68 percent

Step-by-step explanation:

Answer:

68%

Step-by-step explanation:

Answer:

J

Step-by-step explanation:

The dad gave him a one time 200 bonus. Therefore, the 25 is being multiplied per week. Hope this helps!

Answer:

(2, -5/2)

Step-by-step explanation:

We can easily find the midpoint of this line using the midpoint formula. Although we can just find it by looking at the graph, let's try finding the midpoint using the formula to make sure we are correct.

[tex](\frac{x1+x2}{2}), (\frac{y1+y2}{2} )[/tex]

[tex](\frac{2+2}{2}),(\frac{4+(-9)}{2})\\\\\\(\frac{4}{2}), (\frac{-5}{2})\\\\\\(2, \frac{-5}{2})[/tex]

Answer:

You can simplify the fraction to get the most simplified answer then you can compare them or multiply the top or the bottom of the fraction to start comparing the fractions.

Step-by-step explanation:

Step-by-step explanation:

Find the Equation of a Line Given That You Know Two Points it Passes Through. The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept.

Answer:

The points (0, 0) and (1, 20) can be used to create the line that represents the situation.

If t is the x-coordinate and r is the y-coordinate, then any point that satisfies the equation r = 20t for t > 0 can be used to graph the line. So, any two points that satisfy the equation, such as (0, 0), (1, 20), (2, 40), (3, 60), (4, 80), (5, 100), and so on, can be used to create the line that represents the situation. The line is the same in each case.

Step-by-step explanation:

This is the exact answer on Edmentum.

Answer:

C

Step-by-step explanation:

The equation of a line parallel to the x- axis ( slope of 0 ) and perpendicular to the y- axis has equation

y = c

where c is the value of the y- coordinates the line passes through.

The only equation in this form is

y = [tex]\frac{4}{5}[/tex] → C

Answer:

y=-2/3x+8

Step-by-step explanation:

first, find the y intercept, or b.

write your equation so far: y = -2/3x + b

Now substitute in your given point (6,4)

so now we got: 4 = -2/3(6) + b

which gives you: 4 = -4 + b

Now, we find b.

4 = -4 + b  

+4    +4      < isolating b...

8 = b

now put it back in..

y=-2/3x+b

hope this helped luv <3

answer:

48

Step-by-step explanation:

because its multiplying by 8 so 6x8= 48

Answer:

70 candies

Step-by-step explanation:

35 x 2 = 70

Check:

70/2 = 35

Answer:

14.65

Step-by-step explanation:

You add 13 + 6 3/4 then subtract 5 1/10 from that and you have your answer.