All categories

3 years ago

F(x)=2x+3 find x=9 explain how you got the answer please help me I need the answer today

Mathematics

1 answer:

hram777 [196]3 years ago

6 0

You would fill in 9 for x so your equation would be 2(9)+3 and you would then get 21. Therefore the answer is f(x)=21

You might be interested in

Brianna wants to buy a digital camera for a photography class. One store offers the camera for $50 down and a payment plan of $2

julia-pushkina [17]

Answer:

The second camera. The second camera is $30 cheaper than the first camera.

Step-by-step explanation:

The equation of the first store is y = 20x + 50. Keep this in mind.

Replace x with 12 in each of these equations to determine which is cheaper.

y = 20(12) + 50 = $290

y = 15(12) + 80 = $260

So the second store is cheaper.

8 0

3 years ago

Fill in the blank with the correct response. The slope of the graph of y= x is___

motikmotik

Answer:

Step-by-step explanation:

y=mx+c

m is the gradient/slope

y=1x

hence m=1

5 0

2 years ago

Jamal bought a diamond ring at a 20% discount. He paid $2640 for the ring. Naomi bought a similar ring but was given a discount

Fudgin [204]

Answer: 72%

Step-by-step explanation:

Set Jamal's original ring price = x

$x - x(0.2) = 2640\\x(1-0.2)=2640\\x(0.8)=2640\\x=\frac{2640}{0.8}=3300$

Jamal's original ring price = $3300

Set Naomi's discount = y

$3300-3300(y)=924\\=3300(1-y)=924\\1-y=\frac{924}{3300} \\-y=\frac{924}{3300} -1\\y=1-\frac{924}{3300}=1-0.28=0.72$

Naomi's discount is 0.72 = 72%

7 0

2 years ago

A submarine sits at –300 meters in relation to sea level. Then it descends 115 meters. What is its new position in relation to s

avanturin [10]

Answer:

$New\ Position = -415m$

Step-by-step explanation:

Given

$Position= -300m$

$Descend = 115m$

Required

Determine the new position

It descends means that it moved in the downward position.

So, the new position is:

$New\ Position = Position - Descend$

$New\ Position = -300m - 115m$

$New\ Position = -415m$

<em>Hence, the new position f the submarin is -415m</em>

3 0

3 years ago

Read 2 more answers

Simplify the numerical expression.

laiz [17]

Answer:

Step-by-step explanation:

13-2x 5

13-5= 8

2x 8

5 0

3 years ago