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3 years ago

What is Thuy’s error?

Mathematics

2 answers:

tia_tia [17]3 years ago

8 0

Answer:

number b

Step-by-step explanation:

thuy should have written the ratio as 30/39

Gekata [30.6K]3 years ago

3 0

They should me number 29’

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Listed are the quantities of green grapes Martha bought for four months in the amount that she spent on them. In May, she bought

Firlakuza [10]

Answer:

It is in February that the unit price of grapes ($2.70 per pound of grapes) is the same as that of May.

Step-by-step explanation:

Complete Question

Select the correct month.

Listed are the quantities of green grapes Martha bought for four months and the amount that she spent on them. In May, she bought 2 pounds of grapes for $5.40, in which month was the unit price the same as it was in May?

January

2 pounds for $7.40

February

4 pounds for $10.80

March

5 pounds for $11.65

April

3 pounds for $7.50

Solution

In May, Martha bought 2 pounds of grapes for $5.40.

The unit price per pound = (5.40/2) = $2.70 per pound of grapes.

We can then do this for the months given to obtain which month in which the unit price is the same as it was in May?

For January

She bought 2 pounds of grapes for $7.40

Unit price per pound = (7.40/2) = $3.70 per pound of grapes.

For February

Martha bought 4 pounds of grapes for $10.80.

Unit price per pound = (10.80/4) = $2.70 per pound of grapes.

March

She bought 5 pounds of grapes for $11.65.

Unit price per pound = (11.65/5) = $2.33 per pound of grapes.

April

She bought 3 pounds of grapes for $7.50.

Unit price per pound = (7.50/3) = $2.50 per pound of grapes.

It is evident that it is in February that the unit price of grapes ($2.70 per pound of grapes) is the same as that of May.

Hope this Helps!!!

7 0

4 years ago

Read 2 more answers

Suppose that u⃗ =⟨−6,2⟩ and v⃗ =⟨−2,−6⟩. What is the angle between u⃗ and v⃗ , rounded to the nearest degree?

wlad13 [49]

Answer:

Ya'll ask the most complicated questions that never get answered just gooogle it dude

Step-by-step explanation:

4 0

3 years ago

Please help I need an answer

Studentka2010 [4]

Answer:

i cant help without the graph

Step-by-step explanation:

Next time plz trytoshow the graph if you'd like me to answer

4 0

4 years ago

Hi my name is chaitra so I have a test coming up and I'm having trouble solving three digit by three digit multiplication and tw

arlik [135]

Answer:

So 2 digit multiplication is like this

x 45

-----

115

920

-----

1035

first yo multiply the 5 and the 3 and then you multiply the 5 by the 2 then you will get 15 for the first and you put the 1 on top of the 1 now 5 times 2 plus 1 is 11 so yo put the 11 down at the bottom. now you put a zero at the bottom of the answer will be $23 x 45 = 1035$

5 0

3 years ago

The ratio of the diameters is 15:11. If the diameter of the smaller ball is 55cm, what is the volume of the larger ball? Round t

gizmo_the_mogwai [7]

Answer:

220,781.25 cubic cm

Step-by-step explanation:

Given ratio of the diameters = 15:11

Let the actual value of of diameters be 15x and 11x to maintain the ratio of 15:11

Given that smaller one has diameter of 55cm

thus 11x = 55cm

x = 55/11 cm = 5

Thus, diameter of larger ball = 15xcm= 15*5cm =75cm.

we know that radius is half of diameter

Radius = diameter/2

Thus radius of larger ball = 75/2 cm = 37.5 cm.

Volume of sphere is given by $(4/3)\pi r^3$

we know that ball has spherical shape

thus volume of larger ball is calculated as given below

$volume \ of \ ball = (4/3)\pi r^3\\=> volume \ of \ ball = (4/3)*3.14* 37.5^3\\=> volume \ of \ ball = (4/3)*3.14* 37.5^3\\=> volume \ of \ ball = 220,781.25$

Thus, volume of larger ball is 220,781.25 cubic cm

5 0

4 years ago