3 years ago

HELPPPP PLSSSS ANSEERRRRRJSJSJSS PLSSS HELPPPPPE

Mathematics

2 answers:

frutty [35]3 years ago

8 0

yeah it’s the first one

vaieri [72.5K]3 years ago

3 0

Answer:

Step-by-step explanation:

i agree

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The perimeter of a rectangle is 42 cm. The width is 7 cm less than the length.

lara [203]

Answer:

<h2>Length = 14</h2><h2>Width =7</h2>

Step-by-step explanation:

$Let \:the\:length\:be \:x\\Perimeter = 42 cm\\Width = x -7\\\\P = 2(l+b)\\\\42 = 2(x+(x-7))\\\\42 = 2(x +x-7)\\42 = 2(2x-7)\\42 = 4x -14\\Collect\:like\:terms\\\\42+14=4x\\56 = 4x\\\\Divide \:both\:sides\:of\:the\:equation\:by \:4\\\frac{56}{4} = \frac{4x}{4} \\\\14 =x\\Length = 14\\Width = x-7\\Width = 14-7\\\\Width = 7$

7 0

3 years ago

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Help asap will mark brainiest

Sedbober [7]

Answer:

x=47

Step-by-step explanation:

If the total degrees in a triangle is 180 then you would just add the given values and subtract it from 180.

6 0

3 years ago

Can someone please help me out with this question??

malfutka [58]

Answer:

6(4 + 3t)

Step-by-step explanation:

The greatest common factor of 24 and 18 is 6

Take out 6 from each term

24 + 18t

= 6(4 + 3t)

5 0

3 years ago

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Bart budgeted $285.75 each month for utilities. His utility bills this month were $130.50 for electric, and $240 for gas. How mu

iren2701 [21]

Answer:

$84.75 over budget

Step-by-step explanation:

Barts' budget is 285.75

Bills: 240 + 130.50 = $370.50

(subract by his budget)

370.5 - 285.75 = $84.74

4 0

3 years ago

Find the length of a right triangle if a=6 and b=8

gulaghasi [49]

Answer:

Step-by-step explanation:

a^2 + b^2 = c^2

6^2 + 8^2 = c^2

36 + 64 = 100

Square root of 100 is 10

a=6 b=8 c=10

I'm so sorry if I got this wrong.

5 0

3 years ago