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3 years ago

9

Todd knows the ratio of boys in his class is 3:5. Since 12 of the students are boys he says there must be 36 students in his cla

ss. Is he right?

1 answer:

MArishka [77]3 years ago

6 0

Answer:

No there are 32 students in his class

Step-by-step explanation:

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(5,-6) and (4,3) find the slope

klio [65]

Answer:

$\displaystyle m = -9$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

<u>Algebra I</u>

Coordinates (x, y)
Slope Formula: $\displaystyle m = \frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

Point (5, -6)

Point (4, 3)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

Substitute in points [Slope Formula]: $\displaystyle m = \frac{3--6}{4-5}$
[Fraction] Subtract: $\displaystyle m = \frac{9}{-1}$
[Fraction] Divide: $\displaystyle m = -9$

3 0

3 years ago

If a set of patio furniture costs $575 and the tax rate is 10%. They are having a sale of 25% off. How much will the furniture c

Black_prince [1.1K]

Answer:

43.12500

Step-by-step explanation:

figure out 25 percent of 575 (143.75) then do 575-143.75 for the discounted price (431.25) then turn 10 percent into a deciaml (.10) and multiply 431.25 by .10 for your answer. Hope this help :)

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3 years ago

If Cody is draining his hot tub which holds 1,400 gallons of water at a rate of 27 gallons a minute, what impact will it have on

leva [86]

After 18 minutes there will be 486 gallons of water drained.

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3 years ago

Read 2 more answers

What is the value of x?

Sergeu [11.5K]

Answer:

1

Step-by-step explanation:

since both the triangles are Congruent

Side BC = side FE

13x - 12 = 7x - 6

13x - 7x = -6 +12

6x = 6

x = 6/6

x = 1

4 0

3 years ago

Crecimiento de arboles

denpristay [2]

Queremos encontrar la altura de las plantas luego de t años, dado que conocemos la altura inicial y la velocidad de crecimiento.

La ecuación de la altura es:

$h(t) = 0.75*t^2 + 5*t + 12$

Con ella veremos que los arbustos miden 69cm cuando son vendidos.

<em>Veamos como resolver esto.</em>

h(t) es la función que modela la altura de las plantas.

Sabemos que:

$\frac{dh(t)}{dt} = 1.5*t + 5$

Sí integramos, obtendremos:

$h(t) = (1/2)*1.5*t^2 + 5*t + c$

donde C es una constante de integración, la cual representa la altura inicial (para t = 0) de las plantas, notar que:

$h(0) = c$

Y sabemos que las plantas miden 12 cm cuando son plantadas, entonces c = 12.

La ecuación de la altura es entonces:

$h(t) = 0.75*t^2 + 5*t + 12$

Esta ecuación nos da la altura en centimetros a tiempo t.

Sabemos que los arbustos se venden luego de 6 años, entonces la altura que tendran cuando son vendidos es:

$h(6) = 0.75*6^2 + 5*6 + 12 = 69$

Es decir, los arbustos miden 69cm cuando son vendidos.

Sí quieres aprender más, puedes leer.

brainly.com/question/25180768

7 0

3 years ago