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marshall27 [118]
3 years ago
13

Please find the x, thank you!

Mathematics
2 answers:
posledela3 years ago
5 0
Switch around the equation
7/x - 9/x = -1/4
-2/x = -1/4
Cross multiply
x = 8
Black_prince [1.1K]3 years ago
4 0

Answer:

X=8

Step-by-step explanation:

Hope this helps

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What are the original substances called in a chemical reaction?
yulyashka [42]

Answer:

reactants

A chemical reaction is the process in which atoms present in the starting substances rearrange to give new chemical combinations present in the substances formed by the reaction. These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find three consecutive integers whose sum is -93 and write an equation.
mylen [45]
-30, -31, -32
-30 + -31 + -32 = -93
8 0
3 years ago
What is the solution to the system of equations? (7, 4) (7, startfraction 13 over 3 endfraction) (8, startfraction 14 over 3 end
miss Akunina [59]

The points are (7, 13/3).

Lets simplify the equation,

The equation of first line: y = 1/3 x + 2

the equation of second line: y= 4/3x - 5

Solve the system of equations by elimination,

Multiply equation A by -4 both sides

-4y = -4(1/3x +2)

-4y = -4/3x-8

After eliminating the equation we get,

y = 13/3

So now have to find x

13/3 = 1/3x + 2

Lets multiply above by 3
x = 13-6

x = 7.

Hence the points are (7, 13/3)

Learn more about Quadratic Equation on:

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5 0
2 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
WILL MARK BRAINLIEST IF RIGHT PLS DONT GET IT WRONG
Usimov [2.4K]

Answer:

A triangle's total is 180 degrees. 90 is a right angle. 20 is the angle for A. That would mean the value of 90+20=110. 180-110=70 B is 70

3 0
3 years ago
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