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SpyIntel [72]
4 years ago
6

What is the value of 42-2(3 times 5+1)

Mathematics
1 answer:
Angelina_Jolie [31]4 years ago
8 0

42-2 = 40

3x6 = 18

its either 58 or 720 since Im confused about if theres paranthesis or not

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WRITE A EQUATION ''THE QUOTIENT OF A NUMBER AND 20.7 is 9
zhannawk [14.2K]

Answer:

186.3

To find the answer you have to do inverse operations

9×20.7=186.3

186.3÷20.7=9

3 0
3 years ago
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An alloy is composed of nickel, zinc, and copper in a 7:2:9 ratio. How many kilograms of each metal is needed to make 3.8 kg of
Tamiku [17]
Ni : Zn: Cu = 7:2:9 =7x : 2x : 9x

7x+2x+9x = 3.8
18x=3.8
x=3.8/18=1.9/9≈0.21

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Check 1.5+0.4+1.9 =3.8 True
6 0
3 years ago
A bakery sold a total of 500 cupcakes in a day, and 360 of them were mocha flavored.
GREYUIT [131]

Answer:

72%

Hope this Helps! :)

7 0
3 years ago
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Multiply: (x – 4)(x + 5)
denpristay [2]

Answer:

D.  x2 + x - 20.

Step-by-step explanation:

(x – 4)(x + 5).

= x(x + 5) -4(x + 5).

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= x2 + x - 20.

3 0
4 years ago
a student has answered 82% of the questions correctly in the examination. He made mistakes in 9 questions Calculate the toltal n
Sonja [21]

Answer:

There is a total 50 questions.

Step-by-step explanation:

Let x = total questions in the exam

Since 82% of the test was scored correctly, that means 18% of the student's exam was scored incorrectly.

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x=9\div18\% (divide 18% on both sides)

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∴ There was a total of 50 questions in the examination.

5 0
3 years ago
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