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Which equation can be used to solve for x in the diagram?


A: 3x + 30 + 90=180

B: 3x=30

C: 3x + 30=90

D: 90=3x-30

Answer:

y = 1.5x

Step-by-step explanation:

Charge for 3 pounds of salad is $4.50

Charge per pound is thus 4.5/3 = $1.5

Now, we want to write an equation that can be used to represent the cost of salad y for x pounds of salad

Mathematically, that will be;

y = 1.5x

Answer:

1

Step-by-step explanation:1

Answer:

2

Step-by-step explanation:

It's up 20, right 10. 20 divided by 10 is 2. Therefore, the slope is 2

Answer:

its the first one

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

This is an exponential function of the form  

We will use the following

y for the number of bacteria at a given time

x for the time

a for the starting number of bacteria, which is 700

b for the base of the exponent

so lets find b, we need the following:

r, which will be our rate, which is 4.3% or 0.043, so

With this info, let's substitute, and get the equation as the answer:  

Put that into desmos, (I attached a screenshot for you)

Step-by-step explanation:

Answer:

Point A

Step-by-step explanation:

The long that would be used to find f(3) is the point that shows the value of y when x = 3.

Looking at the graph given, the only point that shows the value of y when x = 3 is point A.

When x = 3, y = 0.

Therefore, f(3) = 0.

Answer:

$70

Step-by-step explanation:

Convert the percent. 175% = 1.75.

Multiply 40 * 1.75.

70

Answer:

Section A = 26,500 seats

Section B = 14,900 seats

Section C = 11,600 seats

Step-by-step explanation:

Total seats = 53,000

Total revenue = 1,997,400

Section A seat = $42

Section B seat = $36

Section C seat = $30

The number of seats in this in section A equals the total number of seats in section BNC

A = B + C

A + B + C = 53,000 (1)

42A + 36B + 30C = 1,997,400 (2)

Substitute A = B + C into (1)

A + B + C = 53,000

B + C + B + C = 53,000

2B + 2C = 53,000

2(B + C ) = 53,000

B + C = 53,000 / 2

= 26,500

B + C = 26,500 (3)

Substitute B + C = 26,500 into (2)

42A + 36B + 30C = 1,997,400

Recall,

A = B + C

42( 26,500) + 36B + 30C = 1,997,400

1,113,000 + 36B + 30C = 1,997,400

36B + 30C = 1,997,400 - 1,113,000

36B + 30C = 884,400. (4)

Multiply (3) by 30

B + C = 26,500 × 30

30B + 30C = 795,000 (5)

36B + 30C = 884,400 (4)

Subtract (5) from (4) to eliminate C

36B - 30B = 884,400 - 795,000

6B = 89,400

B = 89,400/6

= 14,900

B = 14,900

From (3)

B + C = 26,500

C = 26,500 - B

= 26,500 - 14,900

= 11,600

A = B + C

= 14,900 + 11,600

= 26,500

Section A = 26,500 seats

Section B = 14,900 seats

Section C = 11,600 seats

Step-by-step explanation:

The approximate stopping distance d(in feet) is given by the formula :

[tex]d=0.05v^2+2.2v[/tex] ...(1)

Where

v is the speed of the car in mph

We need to find the speed of the car when the distance is 200 feet

Put d = 200 in equation (1)

[tex]0.05v^2+2.2v=200\\\\0.05v^2+2.2v-200=0[/tex]

It is a quadratic equation. Divide the above equation by 0.05.

[tex]v^2+44v-4000=0[/tex]

The solution of the above equation is given by :

[tex]v=\dfrac{-44\pm \sqrt{44^2- 4(1)(-4000)} }{2(1)}\\\\v=\dfrac{-44+ \sqrt{44^2- 4(1)(-4000)} }{2(1)},\dfrac{-44- \sqrt{44^2- 4(1)(-4000)} }{2(1)}\\\\v=44.96\ ft/h, -88.96\ ft/h[/tex]

Since, 1 mph = 5280 ft/hour

44.96 ft/h = 0.00851 mph

-88.96 = -0.0168 mph

Hence, this is the required siolution.

Answer:

p(-2) = -11

p(0) = -3

p(5) = 17

Step-by-step explanation:

Think of p(x) as a y.  Just substitute the x values into the equation, and with some basic algebra, you should get your answer

p(-2) = -3 + (-8) = -11

p(0) = -3 + 0 = -3

p(5) = -3 + 20 = 17

the two shapes are similar but scaled differently

this ratio is 2:3 (EF:AB)

so to find y we’ll set this up

2/3= y/4.5

and solve for y

4.5(2/3) = y

y = 9/3

y = 3

Answer:

lol yes?

Step-by-step explanation:

Answer:

yes yes yes yes yes yes

Answer:

0.267

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

any equation that has a variable with an exponent (in this case x^4) is not linear

Answer:

y is correct but x is not

Step-by-step explanation:

because x+ 118°=180°[ co- interior angle ]

Answer:180-124= answer

Step-by-step explanation:I don’t have a caclator srry

Answer:

1.54034×10^5

Step-by-step explanation:

Answer:

98

Step-by-step explanation:

Mathematically, when we add all the angles of a triangle, we get 180

Thus;

x + 1 + 2x-2+ 3x-5 = 180

6x-6 = 180

6x = 186

x = 186/6

x = 31

so the measure of the biggest angle is 3x -5

= 3(31) + 5 = 93 + 5 = 98

Answer:

The other sides are called legs.

Step-by-step explanation:

Right Triangles

They are a special type of triangles on which one of its internal angles is 90°. Since the sum of all internal angles is 180°, the sum of the other acute angles is 90°.

The longest side is called the hypotenuse and the other two sides are called legs.

The attached image shows a right triangle of hypotenuse c and legs a and b.

Answer:

you multiply all of those answers

Step-by-step explanation:

Answer:

ΔABC has: AD=DB

                  AE = EC

=> DE is the median line of ΔABC

=> DE // BC

=> m∠AED = m∠ECF = 32°

.

Step-by-step explanation:

Answer:

∠ ECF = 32°

Step-by-step explanation:

DE is the midsegment of Δ ABC and is therefore parallel to the third side BC.

Since DE and BC are parallel lines, then

∠ ECF and ∠ AED are congruent ( corresponding angles ) , thus

∠ ECF = ∠ AED = 32°

Answer: decrease

Step-by-step explanation:

Answer:

The cost for adult tickets be represented by x = $5

The cost for student tickets be y = $2

Step-by-step explanation:

Let the cost for adult tickets be represented by x

the cost for student tickets be y

The Montague family and their neighbors the Capulets attended the school play together. The Montagues bought two adult tickets and three student tickets for $16.

= 2x + 3y = 16... Equation 1

The Capulets purchased three adult tickets and two student tickets for $19.

3x + 2y = 19 ..... Equation 2

How much was each adult and student ticket?

2x + 3y = 16... Equation 1

3x + 2y = 19 ..... Equation 2

We solve using Elimination method

Multiply Equation 1 by 2 and Equation 2 by 3 to eliminate u

4x + 6y = 32..... Equation 3

9x + 6y = 57.... Equation 4

Subtract Equation 4 from 3

-5x = -25

x = 25/5

x = $5

2x + 3y = 16... Equation 1

Since x = $5

2($5) + 3y = 16

10 + 3y = 16

3y = 16 - 10

3y = 6

y = 6/3

y = $2

Therefore:

The cost for adult tickets be represented by x = $5

The cost for student tickets be y = $2

Answer: A

Step-by-step explanation:

Answer:

1.2 laps/minute

Step-by-step explanation:

Answer:

A system of linear equations usually has a single solution, but sometimes it can have no solution (parallel lines) or infinite solutions (same line). This article reviews all three cases.

so the answer to this question is it has infinite solutions

Step-by-step explanation:

two parallel lines go forever

63 apparently

jsjxxjjddddkxx

Answer:

it is 30

                    12344555667890

Answer:

use Math away, it would help, I'm in a hurry so I cannot give u the answer at the moment.

Step-by-step explanation:

Answer:

a) -6+4k=4

4k=4+6 (transpose)

4k=10

k=5/2

b) 7p-3=-2

7p=1

p=1/7

c) 1/7=p/21

7p=21(cross-multiplication)

p=3

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