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2 years ago

There are 7 brown cars out of 35 cars. What is the ratio of brown cars to the cars?

Mathematics

2 answers:

Gelneren [198K]2 years ago

5 0

7:35 would be the ratio hope this helps! :))

Alexeev081 [22]2 years ago

5 0

Answer:

7:35 (can also be written as 7/35)

Step-by-step explanation:

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Suppose Y varies directly with X, and Y = 15 and X = 5. Write a direct variation equation that relates X and Y. What is the valu

Oksana_A [137]

Answer:

Step-by-step explanation:

If two variables are directly proportional, it means that an increase in the value of one variable would cause a corresponding increase in the other variable. Also, a decrease in the value of one variable would cause a corresponding decrease in the other variable.

Given that Y varies directly with X, and Y = 15 and X = 5, if we introduce a constant of proportionality, k, the expression becomes

15 = 5k

k = 15/5

k = 3

The equation would be

Y = 3X

Therefore, when X = 9, the value of Y would be

Y = 3 × 9

Y = 27

6 0

2 years ago

A car wheel is 56 cm in diameter. A. How far does the car go in one revolution of the wheel?

andre [41]

The car moved 175.84 cm in one revolution

The car has moved 17584 cm in 100 revolutions

Solution:

Given that car wheel is 56 cm in diameter

diameter = 56 cm

To find: distance traveled in one revolution of wheel

Usually wheel is of circular shape

one revolution of wheel = circumference of circle

The circumference of circle is given as:

$c = 2 \pi r$

We know that,

diameter = 2(radius)

$d = 2r$

So the circumference becomes:

$c = \pi d$

substitute $\pi$ = 3.14 and d = 56 cm

$c = 3.14 \times 56 = 175.84$

Thus the car moved 175.84 cm in one revolution

B. How far does it go in 100 revolutions

Distance covered in 100 revolutions = 100 x Distance covered in 1 revolution

$\rightarrow 100 \times 175.84 = 17584$

Thus the car has moved 17584 cm in 100 revolutions

6 0

3 years ago

Need help with geometry!!!!!!! hurryyyy!!

MakcuM [25]

Answer:

#8 - substitution property of equality

hop this helps! <3

6 0

1 year ago

2 grey cards

denis-greek [22]

P(G)=2
P(Y)=7
P(P)=5

Now

Total=E=7+5+2=12+2=14

Now

P(G')=14-2=12

Probability of not selecting gray =12/14

Now

But pink is in 5

P(P)=5/12

5 0

2 years ago

Solve for m 2 (2m - 2) = 3m + m + 3 - 7

Tasya [4]

Use an app called Photomath it will solve instantly

3 0

2 years ago