3 years ago

100 points to anyone who can solve these problems! Please show work! :)

Mathematics

2 answers:

yulyashka [42]3 years ago

7 0

4. 20 minutes
Explanation- It's the only answer with "minutes" as an answer.

aliina [53]3 years ago

3 0

Answer:

20 minutes

Explanation- It's the only answer with "minutes" as an answer.

Step-by-step explanation:

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Question 3 Translate this sentence into an equation. The sum of 13 and Julie's age is 50. Use the variable to represent Julie's

LekaFEV [45]

Answer: 13 + x = 50

Step-by-step explanation: the sum is 50 , 13 is provided , julie’s age is the variable

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3 years ago

How do you subtract nega

sergey [27]

Well think of it like this. lets say your teacher made you do this problem -48 - 10. I would just act like 48 is not an negative and add 10. After that I would put the negative back. So the answer would be -58. :P

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3 years ago

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The total surface area of this cuboid is 112cm squared find the value of x

Liono4ka [1.6K]

Answer:

The height of cuboid is 3 cm

Step-by-step explanation:

Total surface area of cuboid = $2lb+2bh+2hl$

Length of cuboid = 10 cm

Width of cuboid = 2 cm

Let the height be x

Total surface area of cuboid = $2(10)(2)+2(2)(x)+2(x)(10)$

Total surface area of this cuboid is 112 cm squared

$2(10)(2)+2(2)(x)+2(x)(10)=112$

$40+4x+20x=112$

$40+24x=112$

$24x=112-40$

$24x=72$

$x=\frac{72}{24}$

$x=3$

Hence the height of cuboid is 3 cm

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3 years ago

Is .277277277 irrational

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3 years ago

The solution set for 7q2 − 28 = 0 is { }. (Separate the solutions with a comma) NextReset

SVETLANKA909090 [29]

7q^2 - 28 = 0

7q^2 = 28
q^2 = 4
q = +/-2
solution set is {-2,2}

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3 years ago

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