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egoroff_w [7]
3 years ago
15

Angela can paint 3 sections in 25 minutes.

Mathematics
1 answer:
natima [27]3 years ago
3 0

Answer:

Análisis del problema

Nos dan como datos el tiempo que se tarda cada uno en pintar la habitación:

Gerardo: 3 horas

Ángel: 6 horas

La velocidad de trabajo podemos definirla como dada por la cantidad de habitaciones que pueden pintar sobre el tiempo: H/t

Gerardo: 1 hab /3h

Ángel: 1 hab / 6h

Sumamos ambas velocidades de trabajo:

Por lo tanto entre los dos pintarían una habitación en dos horas.

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What is the slope of the line
Elena L [17]

Answer:

slope = -3/4

Step-by-step explanation:

y(1)-y(2)/x(1)-x(2)

Plug in coordinates (0,4) and (4,1)

1-4/4-0

-3/4 is the slope

6 0
3 years ago
An airplane has a total of 414 packets of crackers, pretzels, and peanuts available for passengers.
zhenek [66]
There is no question in Part A, but i do what i can.

Part A.
We know that:

n - number of <span>packets of crackers
p -</span> <span>number of packets of pretzels

p = 2n+9

s - </span><span>number of packets of peanuts

s = 3p = 3(2n+9) = 6n+27

So:

n+p+s=414\\\\n+(2n+9)+(6n+27)=414\\\\9n+36=414\quad|-36\\\\9n=378\quad|:9\\\\\boxed{n=42}\\\\\\&#10;p=2n+9=2\cdot42+9=\boxed{93}\\\\s=6n+27=6\cdot42+27=\boxed{279}

There are 42 </span><span>packets of crackers, 93 </span><span>packets of pretzels and 279 packets of peanuts.

Part B.

x - number of rows with exactly 2 </span><span>passengers
y </span>- number of rows with exactly 3 <span>passengers

and:

\boxed{\begin{cases}x+y=48\\2x+3y=132\end{cases}}\\\\\\&#10;\begin{cases}x+y=48\quad|\cdot2\\2x+3y=132\end{cases}\\\\\\&#10;\begin{cases}2x+2y=96\\2x+3y=132\end{cases}\\\\--------(-)\\\\2x-2x+2y-3y=96-132\\\\-y=-36\\\\\boxed{y=36}\\\\\\x+y=48\\\\x+36=48\\\\x=48-36\\\\\boxed{x=12}

There are </span><span>12 rows with exactly 2 passengers and 36 rows with exactly 3 passengers.</span>
3 0
4 years ago
How would I graph this 8x-5y=15?
FromTheMoon [43]
This is linear. 8x-5y=15
-5y=15-8x
Divide -5
Y=8/5x-3.
Start at -3 on y axis and go down 8 points and right 3.
8 0
3 years ago
Read 2 more answers
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
kirza4 [7]

Answer:

Yes

Step-by-step explanation:

If you graph it... and they intersect there is a sloution.

soloution!:y=0

x=-1.5

3 0
3 years ago
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There are 24 people at a party and each person eats 1/8 of a cake. There was not any cake leftover. How many cakes were at the p
sasho [114]

Answer: 3 cakes were at the party

Step-by-step explanation:

Multiply 1/8*24 to find the exact number of cakes that were at the party

Hope this helps :)

5 0
3 years ago
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