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4 years ago

Jody has 3 red marbles 7 blue marbles and 8 yellow marbles what is the ratio red to blue marbles

Mathematics

1 answer:

torisob [31]4 years ago

8 0

Answer:

3/7

Step-by-step explanation:

The ratio is the number of red marbles and the number of blue marbles in a fraction, so the ratio would be 3/7

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Taylor can clean pools at a constant rate of pools per hour. How

Bogdan [553]

Answer:

it depends on how many he can clean in a single hour.

if he cleans 2/5 pools thats 10 pools in 25 hours

Step-by-step explanation:

if he cleans one pool per hour, thats 25 pools in 25 hours. if he can clean 4 pools an hour, thats 100 pools in 25 hours.

3 0

3 years ago

Write a standard form equation of the line with slope, m=2/5 and containing (-3,5)

bearhunter [10]

I got y=2/5x+31/5 as the answer

3 0

3 years ago

At a certain time of day, the angle of elevation of the sun is 30°. A tree has a shadow that is 25 feet long. Find the height of

Sergio039 [100]

The is 750 Because 30
X25
750
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4 0

4 years ago

During a musical an orchestra is playing. As the music plays, the volume changes in the beginning of the piece can be modeled by

expeople1 [14]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the equation:

s = 10│x - 4│+ 50

Where s = sound level in decibels

x = number of measures of music played

Step 1:

Subtract 50 from Both sides

s - 50 = 10│x - 4│+ 50 - 50

s - 50 = 10│x - 4│

For s = 80

80 - 50 = 10│x - 4│

30 = 10│x - 4│

Clear the absolute value sign

± 30 = 10x - 40

Hence ;

Lower value :

- 30 + 40 = 10x

10 = 10x

x = 1

Upper value :

+30 + 40 = 10x

70 = 10x

x = 7

4 0

3 years ago

While on a walk in the countryyou pass a field full of goats and ducks After quick countyou determine there are 31 heads and 84

andrezito [222]

Answer:

There are 11 goats and 20 ducks.

Step-by-step explanation:

Given:

While on a walk in the country you pass a field full of goats and ducks.

After quick count you determine there are 31 heads and 84 feet in each animal.

Now, to find the number of each animals.

Let the number of goats be $x.$

And let the number of ducks be $y.$

So, total number of heads:

$x+y=31$

$y=31-x\ \ \ .......(1)$

As, the goats have 4 feets and ducks have 2.

Now, the total number of feet:

$4x+2y=84$

Substituting the value of $y$ from equation (1) we get:

$4x+2(31-x)=84\\\\4x+62-2x=84\\\\2x+62=84$

Subtracting both sides by 62 we get:

$2x=22$

Dividing both sides by 2 we get:

$x=11.$

The number of goats = 11.

Substituting the value of $x$ in equation (1) we get:

$y=31-x\\\\y=31-11\\\\y=20.$

The number of ducks = 20.

Therefore, there are 11 goats and 20 ducks.

7 0

4 years ago