3 years ago

HELLLPPP PLLZZZZ IIII BEEEEGGGG UUU

Mathematics

1 answer:

Anuta_ua [19.1K]3 years ago

5 0

Asked and answered elsewhere.
brainly.com/question/9124477

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The length of the base of an isosceles triangle is x. The length of a leg is 2x-6. The perimeter of the triangle is 23 . Find x.

expeople1 [14]

Answer:

In an isosceles triangle, the legs of the triangle have same lengths.

${ \tt{perimeter = side + side + side}}$

• substitute:

${ \tt{23 = x + 2(2x - 6)}} \\ \\ { \tt{23 = x + 4x - 12}} \\ \\ { \tt{5x = 35}} \\ \\ { \boxed{ \tt{ \: \: x = 7 \: \: }}}$

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3 years ago

The width of a rectangle is 7t-4.5 feet and the length is 4.5t+9 feet. Find the perimeter of the

Ray Of Light [21]

Answer:

P=2L+2w

P=2(4.5t+9)+2(7t-4.5)

P=9t+18+14t-9

P=23t+9 feet

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3 years ago

In the problem 3 x 5 = 15, the 3 and the 5 are called WHAT IS IT Called

atroni [7]

Answer:

factors ?

Step-by-step explanation:

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4 years ago

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The sparkling house cleaning company has cleaned 28 houses this week. If this number represents 40% of the total number of house

erma4kov [3.2K]

28 number of Houses = 40% of the total houses the cleaning company needs to clean in a week.
Find the total number of houses do the cleaning company needs to clean in a week>
=> 28 number of houses / 40%
=> 28 / 0.4
=> 70
Thus, the total number of houses that a cleaning company needs to clean in the whole week is 70 houses.
Since they already cleaned 40% of it, which is 28, thus, they still need to clean 42 more.

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4 years ago

Find the measure of angle A.<br> A<br> 9x+6<br> 4x + 6<br> m/A=

Likurg_2 [28]

Answer:

angle A=30°

Step-by-step explanation:

$9x + 6 + 4x + 6 + 90 = 180 \\ 13x + 102 = 180 \\ 13x = 180 - 102 \\ 13x = 78 \\ \frac{13x}{ 13} = \frac{ 78}{13} \\ x = 6 \\ 4x + 6 = a \\ 4(6) + 6 = a \\ 24 + 6 = a \\ 30 = a$

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2 years ago