In a study of 100 new cars, 29 are white. find and , where is the proportion of new cars that are white

(GIVING BRAINLIEST!!!)

AfilCa [17]

Answer:

$Total\ length = 8\frac{5}{8}\ miles$

Step-by-step explanation:

Given

See attachment for ski trails

Required

Total length of $2\frac{7}{8}$ ski trails

From the attached figure, there are 3 skis with length $2\frac{7}{8}\ miles$

So:

The total length is:

$Total\ length = 3 * 2\frac{7}{8}$

Express fraction as improper fraction

$Total\ length = 3 * \frac{23}{8}$

$Total\ length = \frac{3 *23}{8}$

$Total\ length = \frac{69}{8}$

$Total\ length = 8\frac{5}{8}\ miles$

8 0

3 years ago

A swimmer swam 48 kilometers in d days. What is the value of d if the swimmer swam an average of 3.2 kilometers daily?

DedPeter [7]

D = 15!

48 kilometers divided by 3.2 kilometers = 15. To prove this, 3.2 multiplied by 15 equals 48.

6 0

2 years ago

Answer this please pretty please

Slav-nsk [51]

Answer:

Wassup Obito

Step-by-step explanation:

I would have done it if you had asked for only 1 question but you have asked someone to do more than 10 q

You must be mad to think someone will do the entire thing

Mark me brainliest

8 0

3 years ago

Math! 30 points + brainliest

Ronch [10]

Answer:

A) 9.56x10^38 ergs

B) 7.4x10^-3 mm

Step-by-step explanation:

A) 9.56x10^38 ergs B) 7.4x10^-3 mm A). For the sun, just multiply the power by time, so 3.9x10^33 erg/sec * 2.45x10^5 sec = 9.56x10^38 B) Of the two values 7.4x10^-3 and 7.4x10^3, the value 7.4x10^-3 is far more reasonable as a measurement for blood cell. Reason becomes quite evident if you take the 7.4x10^3 value and convert to a non-scientific notation value. Since the exponent is positive, shift the decimal point to the right. So 7.4x10^3 mm = 7400 mm, or in easier to understand terms, over 7 meters. That is way too large for a blood cell when you consider that you need a microscope to see one. Now the 7.4x10^-3 mm value converts to 0.0074 mm which is quite small and would a reasonable size for a blood cell.

6 0

3 years ago

Read 2 more answers

Find the shortest side of a triangle whose perimeter is 64 if the ratio of two of its sides is 4:3 and the third side is 20 less

Sergio039 [100]

Answer:

The shortest side of the triangle is 18

Step-by-step explanation:

Let the sides the triangle be x, y and z.

From the question, the perimeter of the rectangle is 64, that is

x + y + z = 64 ...... (1)

Also, the ratio of two of its sides is 4:3, that is x:y = 4:3, then we can write that x/y = 4/3 ⇒ 3x = 4y ...... (2)

The third side, z, is 20 less than the sum of the other two, that is

z + 20 = x + y ...... (3)

Substitute equation (3) into (1)

Then,

z + 20 + z = 64

2z +20 = 64

2z = 64 - 20

2z = 44

z = 44/2 k

z = 22

From equation (3)

z + 20 = x + y

Then, k

22 + 20 = x +y

42 = x + y

x = 42 - y ...... (4)

Substitute this into equation 2

3x = 4y

3(42-y) = 4y

126 - 3y = 4y

4y + 3y = 126

7y = 126

y = 126/7

y = 18

Substitute this into equation (4)

x = 42 - y

x = 42 - 18

x = 24

∴ x = 24, y = 18 and z = 22

Hence, the shortest side of the triangle is 18.

4 0

2 years ago