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Strike441 [17]
3 years ago
8

Can someone help with these questions? ¿Alguien puede ayudar con estas preguntas?

Mathematics
2 answers:
4vir4ik [10]3 years ago
3 0

9514 1404 393

Answer:

  • 63/94
  • $6857.14

Step-by-step explanation:

a) The fraction is ...

  2(5 1/4)/(15 2/3) = (21/2)/(47/3) = 63/94

Two streamers will require 63/94 of the original material.

__

b) $4800 is 70% of Sara's salary, so that salary is ...

  4800 = 0.70s

  4800/0.70 = s = 6857.14

Sara's salary is about $6857.14.

ahrayia [7]3 years ago
3 0

Answer:

a)The fraction is 63/94.

b)$4800 is 70% of Sara's salary , so that salary is

4800=0,70 s

4800/0.70=s=6857.14

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Dafna1 [17]
45 minutes i m sure all you do is count up or subtract 60 from 15
7 0
3 years ago
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Z=(x+y)ex,x=3t,y=2−t2, find dz/dt using the chain rule. assume the variables are restricted to domains on which the functions ar
luda_lava [24]
z=(x+y)e^x
\begin{cases}x=3t\\y=2-t^2\end{cases}

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\dfrac{\mathrm dz}{\mathrm dt}=(e^x+(x+y)e^x)(3)+e^x(-2t)
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7 0
4 years ago
El piso de un habitación es de forma cuadrada. Tiene 10m de longitud por lado y debe ser cubierto con losetas cuadradas de 25cm
lora16 [44]

Answer:

4 fichas

Step-by-step explanation:

Paso 1

Encontramos el área de la habitación cuadrada.

Área de un cuadrado = longitud del lado²

Longitud lateral = 10 cm

Área del piso cuadrado = (10cm) ²

= 100 cm²

Paso 2

El suelo debe estar cubierto con baldosas cuadradas de 25 cm.

Por lo tanto: El número de mosaicos que serán necesarios =

Área del piso cuadrado ÷ Área de las baldosas

= 100cm² / 25 cuadrados

= 4 fichas

4 0
3 years ago
Can someone please help me with #37
kolbaska11 [484]
Using the diagram, we can conclude that the radius is 10 feet, and the height is 6 feet.

Plug in the values for radius and height into the equation.
V = π10^2*6
Simplify in terms of pi.
V = 600π
Round pi to 3.14 and multiply by 600.
V = 1,884

1,884 cubic feet is your answer.
In the image you provided, I do not see a fourth option that includes 1,884 cubic feet. I would assume that the camera did not take a full picture of the answer choices.
4 0
3 years ago
The ratio of grade 7's to grade 8's is 5:3. If there
Greeley [361]

Answer:

240 students

Step-by-step explanation:

Grade 7 : Grade 8 = 5 : 3

Number of seventh grade students = 5x

Number of Eighth grade students = 3x

3x = 90

x = 90÷3

x = 30

Total students = 5x + 3x = 8x = 8 * 30 = 240

5 0
3 years ago
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