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Lubov Fominskaja [6]
2 years ago
11

Dwayne answered 80% of the questions on a quiz correctly.If he answered 40 questions correctly what was the total number of ques

tions on Dwayne's quiz
Mathematics
2 answers:
trapecia [35]2 years ago
7 0

Answer:

hold up i know it

Step-by-step explanation:

Darina [25.2K]2 years ago
5 0

50, because 4÷5=.80 or 80%.

So 40÷50=.80 or 80%

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MA_775_DIABLO [31]

Answer:

Cuadrilátero A: A = y^{2}+4\cdot y +4

Cuadrilátero B: A = a^{2}+6\cdot a + 9

Step-by-step explanation:

Existen dos formas distintas de determinar las áreas de cada cuadrilátero:

(i) <em>Obtener el área de cada cuadrado y sumar los resultados.</em>

(ii) <em>Calcular los lados del cuadrilátero grande y determinar el área. </em>

Cuadrilátero A

Método (i)

A = y^{2}+2\cdot y +4+2\cdot y

A = y^{2}+4\cdot y +4

Método (ii)

A = (y+2)\cdot (y+2)

A = y^{2}+4\cdot y + 4

Cuadrilátero B

Método (i)

A = a^{2}+3\cdot a +9 + 3\cdot a

A = a^{2}+6\cdot a +9

Método (ii)

A = (a+3)\cdot (a+3)

A = a^{2}+6\cdot a + 9

8 0
2 years ago
Add the product of 2 and 5 to the product of 9 and 8
Lerok [7]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
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iVinArrow [24]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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4 0
2 years ago
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Murljashka [212]
The answer to this question is $1.75x ≤ $25
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