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Annette [7]
3 years ago
13

Please help me with this!! What is 40% of 30?

Mathematics
2 answers:
Mandarinka [93]3 years ago
7 0

Answer:

12

Step-by-step explanation:

I looked it up

Wewaii [24]3 years ago
3 0

Answer: 12

40% = 40/100 = 0.40

"of" means "multiply" in percent word problems like this. Multiply 0.40 with 30 to get 0.40*30 = 12

Optionally, you can solve the equation below for x

part/whole = percent/100

x/30 = 40/100

x/30 = 0.40

x = 0.40*30

x = 12

much of those steps follow a similar pattern to what was mentioned earlier.

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A área de um retângulo é igual a 44, sabendo que as suas medidas são iguais a 4 e (3x+2), calcule a medida do lado maior deste r
jekas [21]

Responda:

11

Explicação passo a passo:

Área do retângulo = comprimento * largura

Dado

Comprimento = 4

Largura = 3x + 2

Área = 44

Substitua na fórmula e obtenha x

44 = 4 (3x + 2)

44 = 12x + 8

12x = 44-8

12x = 36

x = 36/12

x = 3

Obtenha os lados mais longos

Lado mais longo = 3x + 2

Substitua x = 3

Lado mais comprido = 3 (3) + 2

Lado mais comprido = 11

Portanto, a medida do lado mais longo deste retângulo é 11

4 0
3 years ago
The zeros of the function are , 3, and , and the y-intercept of the function is located at .
MissTica

Answer:

The zeroes are -1, 3, and -2

The y intercept is located at (0,6)

Step-by-step explanation:

(x+2)=0

x=-2

The easiest way is to use an online graph like desmos and graph the problem there. You can see where the y intercept is.

8 0
3 years ago
32 divied by y is equal to the product of three and y minus four
VLD [36.1K]

Answer:

your answer is y = 8/3

Step-by-step explanation:

6 0
3 years ago
The scale on a different map is 1 inch represents 6 miles
Crank

1 inch : 6 miles

2.5 inch : x miles

2.5 * 1 = 2.5

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8 0
3 years ago
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3 0
2 years ago
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