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4 years ago

PLEASE HELP I really don’t understand this I’ve been stuck on it for days please

Mathematics

1 answer:

hammer [34]4 years ago

5 0

Answer:

Step-by-step explanation:

BD = 16, so:

2y − 2 + y + 3 = 16

3y + 1 = 16

3y = 15

y = 5

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every week nora buys six oranges priced $0.49 each. if the price of an orange increases from $0.49 to $0.69, how much will the c

jenyasd209 [6]

Answer: 1.20

Step-by-step explanation: 4.14-2.94=1.20

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3 years ago

24. A tank can be filled by a pipe in 30 minutes and emptied by another pipe in 50 minutes. How many minutes will it take to fil

OleMash [197]

Answer:

75 minutes

Step-by-step explanation:

The rate at which the tank is filled up, F, and emptied, E, are respectively:

$F=\frac{V}{30}*60 = 2V/hour\\E=\frac{V}{50}*60 = 1.2V/hour$

Since V is the full volume of the tank, the time required to fill the tank if both pipes are open is given by:

$F-E=2V/hour-1.2V/hour = 0.8V/hour\\t= \frac{1}{0.8}=1.25\ hours = 75\ minutes$

It will take 75 minutes to fill the tank if both pipes are open.

4 0

3 years ago

Riya is applaying mulch to her garden. She applies it at a rate of 250,000 cm3 of mulch for every m2 of garden space. at what ra

mart [117]

For this case the first thing you should do is take into account the following conversion:

$1m = 100cm$

Therefore, by applying the conversion we have:

$(250,000\frac{cm^3}{m^2})((\frac{1}{100})^3\frac{m^3}{cm^3})$

Rewriting we have:

$(250,000\frac{cm^3}{m^2})(\frac{1}{100^3}\frac{m^3}{cm^3})$

$(250,000\frac{cm^3}{m^2})(\frac{1}{1,000,000}\frac{m^3}{cm^3}) = 0.25\frac{m^3}{m^2}$

Answer:

The rate in m^3/m^2 is:

$0.25\frac{m^3}{m^2}$

4 0

4 years ago

Read 2 more answers

Solve the following <br>2(X+3)=X-4

Andreas93 [3]

Answer:

2(x+3)=x-4

2x+6=x-4

2x-x=-4-6

x=-10

3 0

3 years ago

Read 2 more answers

Which expression represents 3 more than twice another 2 plus n plus 3

elena55 [62]

Answer:

twice a number n is 2n

plus 3 is + 3

→ twice a number n plus 3 is 2n + 3.

Step-by-step explanation:

4 0

3 years ago