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Ostrovityanka [42]

2 years ago

6

Someone exchanged a dollar bill for change and received 7 coins, none of which were half-dollars. How many of these coins were d

imes? a. 0 b. 1 c. 4 d. 5 e. Cannot be determined from the information given

1 answer:

Mariulka [41]2 years ago

7 0

There is only 1 dime because there are 3 quarters, 3nickels, and 1 dime which makes 7 coins

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If 110% of a number is 528, then the number is:

Anuta_ua [19.1K]

Answer:

c) 480

Step-by-step explanation:

Any percentage can be converted to a number ratio by dividing by 100%.

E.g. 100%/100% = 1

Following this concept, we can find the equivalent of 110% :

110%/100% = 1.1

Since 528 is 1.1 times the number we are looking for, we just need to divide 528 by 1.1 to find our number. This is because 1.1/1.1 = 1

528/1.1 = 480

Hope this helped!

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Answer:

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8 0

3 years ago

Solve the equation. -(7-4x)=9

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Answer:

x=4

Step-by-step explanation:

-(7-4x)=9

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3 years ago

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A pile of earth removed from an excavation is a cone measuring 6ft high and 30ft across its base. How many trips will it take to

nignag [31]

Answer: 14

Step-by-step explanation:

Given

Excavation cone measures

height $h=6\ ft$

Diameter $d=30\ ft$

Truck can dump $125\ ft^3$ at a time

The volume of a cone is

$V=\dfrac{1}{3}\pi r^2h$

Putting values

$\Rightarrow V=\dfrac{1}{3}\times \pi\times 15^2\times 6\\\Rightarrow V=1413.9\approx 1414\ ft^3$

No of trips(N) required to accumulate this much volume is given by

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Therefore, 14 trips are necessary to accumulate a cone of volume $1414\ ft^3$

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2 years ago