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posledela
3 years ago
6

-185 = -5 - 9b How to find the answer to this problem above?

Mathematics
1 answer:
balu736 [363]3 years ago
4 0

Answer:

b=20

Step-by-step explanation:

-185-5=9b

-180=9b

=>b= -20

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One number is 44 times a first number. a third number is 100 more than the first number. if the sum of the three numbers is 5385
svlad2 [7]

I take it that the actual total is 538. If it really is 538538 leave me a note.

Let the first number = x

Let the second # = 44x

Let the third # = 100x

Equation

x + 44x + 100x = 538 Add the left side. All terms are part of the total.

145x = 538 Div By 145

x = 538/145

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Check

First number = 3.71

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5 0
3 years ago
What is the length of SA?<br> 1.89 ft<br> 2.43 ft<br> O<br> 3 ft<br> 7 ft
Brums [2.3K]

Incomplete Question, Figure is not there the required figure is attached below.

Answer:

The Correct option is third one 3 ft.

Therefore length of SA is 3 ft.

Step-by-step explanation:

Given:

BS = 10 ft

BT = 9ft

TC = 2.7 ft

TS || CA

To Find:

SA = ?

Solution:

Basic Proportionality Theorem:

Basic Proportionality Theorem States that "If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points, the other two sides are divided in the same ratio".

Here, TS || CA        ......Given:

\dfrac{BS}{SA}=\dfrac{BT}{TC} ...Basic Proportionality Theorem

Substituting the values we get

\dfrac{10}{SA}=\dfrac{9}{2.7}\\\\SA=\dfrac{27}{9}=3\\\\\therefore SA =3\ ft

Therefore the length of SA is 3 ft.

5 0
3 years ago
Which of the following points is a solution to the system of equations x - y = 1 and -x + 3y = - 7?
kiruha [24]

Answer:

(-2,-3)

Step-by-step explanation:

Put the equations over each other.

\binom{x - y = 1}{ - x + 3y =  - 7 }

Subtract the x values.

\binom{ - y = 1}{3y =  - 7}

Subtract on both sides.

2y =  - 6

Divide on both sides.

y =  - 3

Insert the y value into one of the equations.

x - ( - 3) = 1

Get rid of the parenthesis.

x + 3 = 1

Subtract on both sides.

x =  - 2

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7 0
2 years ago
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