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Novay_Z [31]
3 years ago
15

Solve for a.

Mathematics
2 answers:
mote1985 [20]3 years ago
6 0

Answer:

lesser x = -4/3

greater x = -1

Step-by-step explanation:

Amiraneli [1.4K]3 years ago
3 0

Answer:

Step-by-step explanation:

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Pls solve this 15 points
anygoal [31]

Answer:

128

Step-by-step explanation:

1/3base area×height

3 0
3 years ago
Given right triangle JKM, which correctly describes the locations of the sides in relation to ∠J?
Leto [7]

Answer:

a is the hypotenuse, b is adjacent, c is opposite

Step-by-step explanation:

6 0
3 years ago
Mezclas de alimentos. Un chef repostero creó una solución de azúcar de 50 onzas constituida por 34% de azúcar con una solución d
Kay [80]

Answer:

Las cantidades empleadas para su preparación son: 15 onzas de solución al 20 % y 35 onzas de solución al 40 %.

Step-by-step explanation:

Podemos estimar la proporción de ingredientes mediante el siguiente promedio ponderado:

0.34= \frac{0.2\cdot m_{A} + 0.4\cdot m_{B}}{m_{A}+m_{B}} (1)

Donde:

m_{A} - Masa de la solución al 20 %, en onzas.

m_{B} - Masa de la solución al 40 %, en onzas.

Podemos simplificar la formula como sigue:

0.2\cdot x + 0.4\cdot (1-x) = 0.34 (2)

Donde x es la proporción de la solución al 20 % dentro de la solución final, sin unidades.

Ahora resolvemos para x en (2):

0.4-0.2\cdot x = 0.34

0.2\cdot x = 0.06

x = \frac{0.06}{0.2}

x = 0.3

Este resultado quiere decir que la solución al 34 % es el resultado de 30 % de la solución al 20 % y 70 % de la solución al 40 %. Si conocemos que la solución final tiene una masa de 50 onzas, entonces las cantidades empleadas para su preparación son: 15 onzas de solución al 20 % y 35 onzas de solución al 40 %.

4 0
3 years ago
What is the solution to the system x+ y =4 and 2x - y = -1
Lostsunrise [7]

Answer:

Step-by-step explanation:

hello :

the system is :  x+ y =4 ...(*)

                       2x - y = -1...(**)

add(*) and (**) : 3x=3    so : x=1

put this value into (*) : 1+y=4     so : y=3

one solution : (1 , 3)

4 0
3 years ago
Which of the following is equivalent to the midpoint between the points (8, -9) and (0, 5)?
olya-2409 [2.1K]
Add up the x points and divided by 2
same to go for the y points
so the and is (4,-2)

7 0
3 years ago
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