Ask question

Ask question

All categories

3 years ago

13

In Priya's math class there are 10 boys and 15 girls.what is the ratio of boys to girls in Priya's math class?Express your answe

r as a decimal.

2 answers:

choli [55]3 years ago

4 0

The ratio is 10/15.

10/15 = 2/3

2/3 = 0.6666...

Romashka [77]3 years ago

4 0

Answer:

0.6666 : 1.

Step-by-step explanation:

We have been given that in Priya's math class there are 10 boys and 15 girls.

The ratio of boys to girls in Priya's math class would be: $\frac{\text{Number of boys}}{\text{Number of girls}}=\frac{10}{15}$

$\frac{\text{Number of boys}}{\text{Number of girls}}=\frac{2*5}{3*5}$

$\frac{\text{Number of boys}}{\text{Number of girls}}=\frac{2}{3}$

$\frac{\text{Number of boys}}{\text{Number of girls}}=0.6666$

Therefore, the ratio of boys to girls in Priya's math class 0.6666:1.

You might be interested in

1) A pair of snow boots at an equipment store in Big Bear costs $60. If there is a tax of 7% how much do you pay?

Vaselesa [24]

The answer will be 53.00 dollars

6 0

3 years ago

Read 2 more answers

Find the missing numerators in each of the following problems. a. 10⁄15 = ⁄60 b. ⁄108 = 4⁄9 c. 7⁄11 = ⁄121 d. ⁄144 = 2⁄6

Zinaida [17]

We will find the numerator step by step for each expression:
For 10/15 = x / 60
x = (10/15) * (60)
x = 40

For  x / 108 = 4/9
x = (4/9) * (108)
x = 48

For  7/11 = x / 121
x = (7/11) * (121)
x = 77

For  x / 144 = 2/6
x = (2/6) * (144)
x = 48

6 0

4 years ago

Solve this system of linear equations. Separate

tia_tia [17]

Answer:

(9,4)

Step-by-step explanation:

The given system is:

9x + 3y = 93

3x - 4y = 11

Multiply the bottom equation by 3 to get:

9x + 3y = 93

9x - 12y = 33

Subtract bottom equation from top one to get:

3y--12y=93-33

$15y = 60$

$y = \frac{60}{15}$

$y = 4$

We put y-value into the bottom equation:

$3x - 4 \times4= 11$

$3x - 16= 11$

$3x = 11 + 15$

$3x = 27$

$x = \frac{27}{3}$

$x = 9$

4 0

3 years ago

What is the number in scientific notation? 0.0765

devlian [24]

Answer:

$7.65 * 10^{-2}$ is scientific notation of 0.0765

Step-by-step explanation:

For scientific notation , follow the following notation:

$a * 10^{b}$ -------->(equation 1)

Let, $a^{'} = 0.0765$

In standard form

$a = 7.65$

As decimal point move 2 places from left to right, therefore

b = -2

Put the value of 'a' and 'b' in (equation 1)

$7.65 * 10^{-2}$ is scientific notation of 0.0765

4 0

4 years ago

Evaluate the integral Find the volume of material remaining in a hemisphere of radius 2 after a cylindrical hole ofradius 1 is d

algol13

You want to find the volume inside the hemisphere $x^2+y^2+z^2=4$ (i.e. inside the sphere but above the plane $z=0$ ) and outside the cylinder $x^2+y^2=1$ . Call this region $R$ .

In cylindrical coordinates, we have

$\displaystyle\iiint_R\mathrm dV=\int_0^{2\pi}\int_1^2\int_0^{\sqrt{4-r^2}}r\,\mathrm dz\,\mathrm dr\,\mathrm d\theta$

$\displaystyle=2\pi\int_1^2 r\sqrt{4-r^2}\,\mathrm dr$

$\displaystyle=-\pi\int_3^0\sqrt u\,\mathrm du$

(where $u=4-r^2$ )

$\displaystyle=\pi\int_0^3\sqrt u\,\mathrm du$

$=\dfrac{2\pi}3u^{3/2}\bigg|_0^3=2\sqrt3\,\pi$

7 0

4 years ago