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3 years ago

7

A customer would like a wall constructed that is 4 feet high. If the bricklayer wants to use all of the 1,820 bricks that he has

readily available, how long will the wall be?

1 answer:

yan [13]3 years ago

3 0

Answer: 7,280

Step-by-step explanation:

If we take the wall that is feet high and use 1,820 bricks we multiply to get the answer of 7,280. ;) Hope this helps

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A crew will arrive in one week and begin filming a city for a movie. The mayor is desperate to clean the city streets before fil

Reptile [31]

Step-by-step explanation:

1 week = 7 days of 24 hours each = 7×24 = 168 hours.

the first team can do 1/700 of the total work per hour.

the second team can do 1/600 if the total work per hour.

if they work together, then 1/700 + 1/600 of the total work can be done per hour.

to add these 2 fractions we need to bring them to the same denominator. and that would be 4200 (LCM of 700 and 600).

1/700 + 1/600 = 6/4200 + 7/4200 = 13/4200

so, together, they can do 13/4200 if the total job in 1 hour.

how many hours will they need together to finish the job ?

well, how often does 13 fit into 4200 (as 4200/4200 is the complete job) ?

4200 / 13 = 323.0769231... hours

so, it will still take a little bit over 323 hours to clean all the streets.

but there are only 168 hours until the film crew starts.

so, no, there is not enough time.

4 0

2 years ago

What is the simplified form of the expression √450?

Darina [25.2K]

15<span>√2 is what I got for the answer.</span>

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3 years ago

If f(x)=3x^2+1 and g(x) =1-x, what is the truly value of (f-g)(2)

Lilit [14]

Answer:

14

Step-by-step explanation:

f(x)=3x²+1

f(2) = 3 x 2² + 1 = 13

g(x) =1-x

g(2) = 1 - 2 = -1

(f-g)(2) f(2) - g(2) = 13 - (-1) = 14

8 0

3 years ago

Which proportion can be used to show that the slope of JL is equal to the slope of MP

Ilya [14]

Answer:

See below and attached

Step-by-step explanation:

<u>As per the graph we have:</u>

Coordinates of JL are J(-7, 4), L(-4, 0)

Coordinates of MP are M(-10, 8), P(-1, -4)

<u>Slope formula is:</u>

m = (y₂ - y₁)/(x₂ - x₁)

<u>Slope of JL:</u>

(0 - 4)/(-4-(-7)) = - 4 / 3

<u>Slope of MP:</u>

(-4 -8)/(-1- (-10)) = -12 / 9 = - 4/3

5 0

3 years ago

Please help me please I really need the answer worth 20 points

Sav [38]

Answer:

3:1, 24 gallons blue 8 gallons yellow

Step-by-step explanation:

Jenny will use 24 gallons of blue paint and 8 gallons of yellow paint

Their ratio is 24:8 = 3:1

8 0

3 years ago