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3 years ago

11

Donna is going to swim 20 laps. She has completed 6 laps. What fraction of laps has she completed? What fraction of her swim rem

ains?

1 answer:

Citrus2011 [14]3 years ago

3 0

Answer:

1.6/20

2.14/20

Step-by-step explanation:

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What is the solution to the equation below? Round your answer two decimal places. 3^x = 9.2

My name is Ann [436]

3x = 9.2 ⇒ x = 2.02000606

4 0

2 years ago

If three bakers can prepare 15

Molodets [167]

Answer:

45 cakes/3 hours

Step-by-step explanation:

15 cakes/1 hour = x cakes = 3 hours (multiply by 3)

3 0

3 years ago

SOLVE FOR X??? <br><br><img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B3%7D%20%2B2%20%3D%5Cfrac%7Bx%7D%7B4%7D%2B3" id="TexFor

natima [27]

Answer:

$\boxed{ \bold{ \boxed{ \sf{1. \: \: \: \: \: x = 12}}}}$

$\boxed{ \bold{ \boxed{ \sf{2. \: \: \: \: \: x = 3}}}}$

Step-by-step explanation:

$\sf{1. \: \: \: \: \frac{x}{3} + 2 = \frac{x}{4} + 3}$

Move x / 4 to left hand side and change its sign

Similarly, move 2 to right hand side and change it's sign

$\longrightarrow{ \sf{ \frac{x}{3} - \frac{x}{4} = 3 - 2}}$

Take the L.C.M of 3 and 4

L.C.M of 3 and 4 = 12

$\longrightarrow{ \sf{ \frac{x \times 4 - x \times 3}{12} = 3 - 2}}$

$\longrightarrow{ \sf{ \frac{4x - 3x}{12} = 3 - 2}}$

$\longrightarrow{ \sf{ \frac{x}{12} = 3 - 2}}$

Subtract 2 from 3

$\longrightarrow{ \sf{ \frac{x}{12} = 1}}$

Do cross multiplication

$\longrightarrow{ \sf{x = 1 \times 12}}$

$\longrightarrow { \sf{x = 12}}$

--------------------------------------------------------------------

$\sf{2. \: \: \: \: 3(4 + 2x) = 33 - x }$

Distribute 3 through the parentheses

$\longrightarrow{ \sf{12 + 6x = 33 - x}}$

Move x to left hand side and change it's sign

Similarly, move 12 to right hand side and change it's sign

$\longrightarrow{ \sf{6x + x = 33 - 12}}$

Collect like terms

$\longrightarrow{ \sf{7x = 33 - 12}}$

Subtract 12 from 33

$\longrightarrow{ \sf{7x = 21}}$

Divide both sides by 7

$\longrightarrow{ \sf{ \frac{7x}{7} = \frac{21}{7} }}$

Calculate

$\longrightarrow{ \sf{x = 3}}$

Hope I helped!

Best regards! :D

4 0

3 years ago

A net and the prism it will form when it is folded are shown below.

Mashcka [7]

Answer:

Option A)724 square centimeters

Step-by-step explanation:

we know that

The surface of the prism is equal to the area of its six rectangular faces

The surface area is equal to

$SA=2B+PH$

where

B is the area of the base

P is the perimeter of the base

H is the height of the prism

we have

$L=12\ cm$

$W=11\ cm$

$H=10\ cm$

<em>Find the area of the base B</em>

$B=LW$

$B=(12)(11)=132\ cm^{2}$

<em>Find the perimeter of the base P</em>

$P=2(L+W)$

$P=2(12+11)=46\ cm$

<em>Find the surface area SA</em>

$SA=2(132)+(46)(10)=724\ cm^{2}$

6 0

3 years ago

Read 2 more answers

4 to 8 = 15 to n Can someone show me the answer

melamori03 [73]

Answer:

n=30

Step-by-step explanation:

4 15

------ = --------

8 n

using cross products

4n = 8*15

4n = 120

divide by 4

4n/4 =120/4

n = 30

6 0

3 years ago