3 years ago

A person riding in an elevator travels 180 feet in 30 seconds. What equation

Mathematics

2 answers:

amid [387]3 years ago

8 0

6x; 60 because 180/30 is 60

adoni [48]3 years ago

3 0

Answer:

I believe its A

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The Formula for the area of a trapezoid is A=1/2(b1+b2)h when this equation is solve for B1, One equation is b1=2A/h -b2 which o

sukhopar [10]

Answer:

see below

Step-by-step explanation:

Multiply by 2 and expand the right side:

2A = b1h +b2h

Subtract the b2 term:

2A -b2h = b1h

Divide by h:

b1 = (2A -b2h)/h

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3 years ago

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If a= -2, b=3 evaluate the expression 2a-3b

tia_tia [17]

2x-2-3x3 =-13. -13 is the answer

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I don't understand the blank ones. Please reply (ASAP).

scoray [572]

11. 180-73 = 107
10. 180-107=73
12. 180-73=107
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15. ABE = 3x+66 = 3*21+66 = 129

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4 years ago

Jan plans to spend $100 on a pair of jeans and shirts. She buys 2 shirts for $24 each. What is the most she can spend on the jea

Volgvan

Answer:

Step-by-step explanation:

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3 years ago

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The solution to a system of linear equations is (-3,-3) Which system of linear equations has this point as its solution? x -5y=-

Ann [662]

Answer:

$x-5y=12$ and $3x+2y=-15$

Step-by-step explanation:

The first system is

$x-5y=-12$ and $3x+2y=-15$

We substitute x=-3 and y=-3

$-3-5*-3=12\ne-12$ and $3*-3+2*-3=-15$

Both equations are not satisfied

The next system is

$x-5y=12$ and $3x+2y=-15$

We substitute x=-3 and y=-3

$-3-5*-3=12$ and $3*-3+2*-3=-15\ne15$

Both equations are satisfied

The next system is

$x-5y=-12$ and $3x+2y=15$

We substitute x=-3 and y=-3

$-3-5*-3=12\ne12$ and $3*-3+2*-3=-15$

Both equations are not satisfied

The next system is

$x-5y=12$ and $3x+2y=15$

We substitute x=-3 and y=-3

$-3-5*-3=12\ne-12$ and $3*-3+2*-3=-15$

Both equations are not satisfied

6 0

4 years ago