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4 years ago

The price of a notebook was

Mathematics

1 answer:

vagabundo [1.1K]4 years ago

5 0

3.35 - 3.10 = .25

.25/3.35 = .0746

.0746*100 = 7.46 or 7.5 rounded

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Give me cookie recipes without flour or cocoa powder will give brainilest

Naya [18.7K]

Answer:

Sorry no such thing only flourless:(

Step-by-step explanation:

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3 years ago

If r = 9 units and x = 5 units, then what is the volume of the cylinder

GuDViN [60]

Answer:

The answer is volume= 1272

Step-by-step explanation:

volume of a cylinder= pi (3.14)*r^2*h

3.14*9^2*5, 3.14*81*5= 1271.7 when rounded is 1272

5 0

3 years ago

What is x given ABC~DBE. Show your work

alexandr1967 [171]

x = 37.5 (or) $\frac{75}{2}$

Solution:

Given $\triangle A B C \sim \triangle D B E$

AC = 50, DE = 30, EC = 25, BE = x, BC = 25 + x

To find the value of x:

Property of similar triangles:

If two triangles are similar then the corresponding angles are congruent and the corresponding sides are in proportion.

$$\frac{BE}{BC} =\frac{DE}{AC}$

$$\frac{x}{25+x} =\frac{30}{50}$

Do cross multiplication, we get

$50x=30(25+x)$

$50x=750+30x$

Subtract 30x from both sides of the equation.

$20x=750$

Divide by 20 on both sides of the equation, we get

x = 37.5 (or) $\frac{75}{2}$

Hence the value of x is 37.5 or $\frac{75}{2}$ .

5 0

4 years ago

Lily and Elsa are both college students.Before mom gave them this months allowance lily had $750 and Elsa had &215.After mom

Drupady [299]

After mom gave each girl an equal amount of money for this months allowance, lily had twice as much money as Elsa. Thus mom gave $ 320 to each girl

Solution:

Given that Lily and Elsa are both college students

Before mom gave them this months allowance lily had $750 and Elsa had &215

Amount (in dollars) with Lily and Elsa already is given as:

amount with Lily = $ 750

amount with Elsa = $ 215

After mom gave each girl an equal amount of money for this months allowance, lily had twice as much money as Elsa

Let "x" be the equal amount of money which mom gave to Lily and Elsa

Now amount with Lily and Elsa after mom gave equal amount is:

amount with Lily = amount with Lily already + x

amount with Lily = 750 + x

amount with Elsa = amount with Elsa already + x

amount with Elsa = 215 + x

Given that lily had twice as much money as Elsa

Amount with lily = 2(amount with elsa)

750 + x = 2(215 + x)

750 + x = 430 + 2ax

2x - x = 750 - 430

x = 320

Therefore mom gave $ 320 to each girl

6 0

4 years ago

What is the value of the coins?

nikitadnepr [17]

Answer:

220 cents, $2.20

Step-by-step explanation:

Count the amount of QUARTERS there are.

7 quarters.

The next coin in the photo is a dime.

4 dimes.

The next coin in the photo is a penny.

5 pennies.

Quarters are worth 25 cents, dimes are worth 10 cents, and pennies are worth 1 cent.

25(7) + 4(10) + 5(1) = v (the total value)

25 * 7 = 175 cents

4 * 10 = 40 cents

5 * 1 = 5 cents

175 + 40 + 5 = v

175 + 40 = 215 cents

215 + 5 = 220 cents

The value of all of those coins is 220 cents, or $2.20.

5 0

3 years ago