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trapecia [35]
3 years ago
15

Two similar prisms have heights of 4 cm and 10 cm. what is the ratio of their surface areas?

Mathematics
2 answers:
MaRussiya [10]3 years ago
8 0
The first is 4 : 25,
the second is 8:125
ioda3 years ago
6 0
The first one is B4:25
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Copy and complete. PLEASE SOLVE IT FAST thanks
Setler79 [48]

Answer:

(a) Increased by 100%

(b) Increased by 50%

(c) Decreased by 33.33%

(d) Decreased by 50%

(e) Increased by 200%

(f) Decreased by 66.67%

Step-by-step explanation:

In this question, we can use the following <em>formula</em>:

\text{Percentage Change =} \dfrac{\text{New value - Old Value}}{\text{Old Value}} \times 100

Positive value of percentage change means increase and

Negative value of percentage change means decrease.

Solution a)

Old Value = 1

New Value = 2

\text{Percentage Change =} \dfrac{\text{2 - 1}}{\text{1}} \times 100\\\Rightarrow 100\%

Increase of 100%

Solution b)

Old Value = 2

New Value = 3

\text{Percentage Change =} \dfrac{\text{3 - 2}}{\text{2}} \times 100\\\Rightarrow 50\%

Increase of 50%.

Solution c)

Old Value = 3

New Value = 2

\text{Percentage Change =} \dfrac{\text{2 - 3}}{\text{3}} \times 100\\\Rightarrow -33.33\%

Decrease of 33.33%.

Solution d)

Old Value = 2

New Value = 1

\text{Percentage Change =} \dfrac{\text{1 - 2}}{\text{2}} \times 100\\\Rightarrow -50\%

Decrease of 50%.

Solution e)

Old Value = 1  

New Value = 3

\text{Percentage Change =} \dfrac{\text{3 - 1}}{\text{1}} \times 100\\\Rightarrow 200\%

Increase of 200%.

Solution f)

Old Value = 3

New Value = 1

\text{Percentage Change =} \dfrac{\text{1 - 3}}{\text{3}} \times 100\\\Rightarrow -66.67\%

Decrease of 66.67%.

So, the answer is:

(a) Increased by 100%

(b) Increased by 50%

(c) Decreased by 33.33%

(d) Decreased by 50%

(e) Increased by 200%

(f) Decreased by 66.67%

6 0
4 years ago
Whats the midpoint of A (-1,5) and M (3,3)​
storchak [24]

Answer:  (1,4)

Step-by-step explanation:

To find the mid-point,find the mean average between the x and y values.

\frac{-1+3}{2} = 1  

\frac{5+3}{2} = 4  

4 0
4 years ago
1.solve d=m/v for m
Dominik [7]
The answer to the question

5 0
3 years ago
6. Mr. Lee ordered 45 points of milk for the fourth - grade party. There are 96 fourth graders and each is supposed to get 1 cup
Svetllana [295]

Answer:

6. (a) No Mr Lee did not order the correct amount of milk.

(b)Mr Lee should have ordered for 48 pints of milk.

7. 156 pints sized jars

8. Eilleen's gallon can hold more cups that James's 3 quart water bottle.It can hold 4 more cups

Step-by-step explanation:

6. There are 96 fourth graders and each is supposed to get 1 cup of milk.

Hence, the number of cups of milk for all the fourth graders at the party is

96 × 1 cup of milk = 96 cups of milk.

Mr. Lee ordered 45 pints of milk for the fourth - grade party.

We have the conversion rate:

1 cup = 0.5 pints

Hence

1 cup = 0.5 pints

96 cups of milk = x

Cross Multiply

1 cup × x = 96 cups of milk × 0.5 pints

x = 96 cups of milk × 0.5 pints/1 cup

x = 48 cups of milk

a. Did Mr. Lee order the correct amount of milk?

No Mr Lee did not order the correct amount of milk.

b. if so, explain why you think he is correct. if not, how many pints of milk should he have ordered?

Mr Lee should have ordered for 48 pints of milk.

7. Daphne and Jordan made jam to sell at the market. Their jam is sold in pint - size jars.

They made 137 quarts but only sold 59 quarts.

The amount of quarts left is calculated as: 137 quarts - 59 quarts

= 78 quarts

We have conversion rate of

1 quart = 2 pints

The number of pint - size jars that are left is calculated as:

1 quart = 2 pints

78 quarts = x

Cross Multiply

1 quart × x = 78 quarts × 2 pints

x = 78 quarts × 2 pints/1 quart

x = 156 pints

The number of pint - size jars that are left 156 pints

8.

For James

James had a 3-quart water bottle.

1 quart = 4 cups

3 quarts = x

Cross Multiply

1 quart × x = 3 quarts × 4 cups

x = 3 quarts × 4 cups/1 quart

x = 12 cups

Hence, James 3 quart water bottle can hold 12 cups

For Eileen

Eileen bought 1-gallon jug.

1 gallon = 16 cups

Hence, Eileen's gallon can hold 16 cups

The difference between both containers is:

16 cups - 12 cups = 4 cups

Therefore, Eileen's gallon can hold more cups that James's 3 quart water bottle

It can hold 4 more cups

7 0
3 years ago
Which expression is equivalent to 2.3 × 2.3 × 2.3 × 2.3 × 2.3?
alexdok [17]

An expression that is equivalent to 2.3 x 2.3 x 2.3 x 2.3 x 2.3 is 2.3^

5 0
4 years ago
Read 2 more answers
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