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3 years ago

If 3/4 of the class likes soda and 3/5 of those who like soda prefer Coke, what PERCENT of the whole class that likes Coke?

Mathematics

1 answer:

katen-ka-za [31]3 years ago

8 0

Answer:

For soda =3/4

For coke= 3/5 X 3/4=9/20

Whole class is 1....

Therefore X% of 1 =9/20

Solving :

X/100 X 1 =9/20

X/100=9/20

20X =900

X= 900/20 = 45%

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David bought a bag of candy that contains 300 pieces. He wants to split the bag among his 21 students. How many pieces of candy

solmaris [256]

Answer:

each student will receive 14 pieces of candy and that leaves 6 pieces for himself.

14*21=294

294+6=300

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3 years ago

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The equation of a circle is given below. What is its center?

svp [43]

Answer:

$( \frac{2}{3}, 0)$

Step-by-step explanation:

The general equation for a circle is

${(x - a) }^{2} + {(y - b) }^{2} = {r}^{2}$

Where a and b are the x and y values of the centre. So comparing to your equation you can see that a is 2/3 and b is 0

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4 years ago

A decorative steel is shown and it is made from circular circle and 6 stems.

STALIN [3.7K]

The total length of the steel used in the frame is 270 cm, if the decorative steel up of 6 stems and each stem is 45 cm.

Step-by-step explanation:

The given is,

Decorative steel made from circular circle of 6 stems

The length of the stem is 45 cm

Step:1

We need to find the total length of the steel used in the decorative steel,

Let, T - Total length of the steel

L - Length of the stem

n - Number of stems used in steel frame

Step:2

Formula to find the total length of the steel is,

$T=$ $l$ × $n$

From given,

$l$ = 45 cm

$n$ = 6 stems

Substitute the values in formula,

$T =$ ( 45 × 6 )

= 270

$T =$ 270 cm

Result:

The total length of the steel used in the frame is 270 cm.

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3 years ago

The screen on briannas new phone is 2.85 centimeters long. what mixed number represents the length of the phone screen?

Mekhanik [1.2K]

We know that
the number $2.85$ is equal to

$2.85=2+0.85$

$0.85$ is equal to

$\frac{85}{100}$
divide by 5 both members

$\frac{85}{100} = \frac{17}{20}$

so
$2.85=2 \frac{17}{20}$

the answer is
$2 \frac{17}{20}$

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Minchanka [31]

Answer:

m = -1/3

Step-by-step explanation:

Slope-Intercept Form: y = mx + b

Step 1: Write equation

x + 3y = 10

Step 2: Convert to slope-intercept form

3y = 10 - x

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We see that our slope would be the term -1/3x. Since m is the coefficient of x and our slope, our slope m = -1/3

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3 years ago

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