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3 years ago

Someone please solve this

Mathematics

1 answer:

Wittaler [7]3 years ago

8 0

Step-by-step explanation:

$2 x \times \frac{1}{4} - 1 \times \frac{1}{4} - 2 \frac{1}{4} = 1 \times \frac{1}{4}$

$\frac{2}{8} - \frac{1}{4} - \frac{2}{8} = \frac{1}{4}$

and then minus them

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Heyo i just wanna say hi and i want someone to talk to thanks and byeeeeeeeeeeeee

mash [69]

Answer:

Step-by-step explanation:

H - I

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3 years ago

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Find the value of x that make it true

lesantik [10]

Answer:

Step-by-step explanation:

1). 10 = $\frac{1+7x}{7+x}$

10(7 + x) = 1 + 7x

70 + 10x = 7x + 1

10x - 7x = 1 - 70

3x = -69

x = -23

2). 0.2 = $\frac{6+2x}{12+x}$

0.2(12 + x) = 6 + 2x

2.4 + 0.2x = 6 + 2x

2.4 - 6 = 2x - 0.2x

1.8x = -3.6

x = -2

3). 0.8 = $\frac{x}{x+0.5}$

0.8(x + 0.5) = x

0.8x + 0.4 = x

x - 0.8x = 0.4

0.2x = 0.4

x = 2

4). 3.5 = $\frac{4+2x}{0.5-x}$

3.5(0.5 - x) = 4 + 2x

1.75 - 3.5x = 4 + 2x

-3.5x - 2x = 4 - 1.75

-5.5x = 2.25

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6 0

3 years ago

PLEASE HELP! What is the ratio of the volumes of two spheres, if the ratio of their radii is 13: 9

DiKsa [7]

Answer:

$V_1 : V_2= 2197 : 729$

Step-by-step explanation:

Let the volumes of both the spheres be $V_1, \:V_2$ and their radii be $r_1, \:r_2$ respectively.

$\huge r_1 : r_2= 13 : 9$ (given)

$\implies\huge \frac{r_1}{r_2}= \frac{13}{9}.....(1)$

$\huge \frac{V_1}{V_2}=\frac{\cancel {\frac{4}{3} \pi} r_1^3}{\cancel {\frac{4}{3} \pi} r_2^3}$

$\huge \frac{V_1}{V_2}=\frac{ r_1^3}{r_2^3}$

$\huge \frac{V_1}{V_2}=\bigg(\frac{ r_1}{r_2}\bigg) ^3..... (2)$

From equations (1) & (2), we have:

$\huge \frac{V_1}{V_2}=\bigg(\frac{13}{9}\bigg) ^3$

$\huge \frac{V_1}{V_2}=\frac{2197}{729}$

$\huge \therefore V_1 : V_2= 2197 : 729$

Thus, the ratio of the volumes of two spheres would be 2197 : 729.

7 0

3 years ago

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Tutorial

zvonat [6]

Answer:

20 points

Step-by-step explanation:

If Jenny scored 3/5th of 50 points then:

Jenny = 3/5 × 50 = 30 points

If Hunter scored 1/5th of 50 points then:

Hunter = 1/5 × 50 = 10 points

Difference in points between Jenny and Hunter = 30 - 10 = 20 points

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2 years ago

Tell whether the ordered pair is a solution of the equation (Yes or No).

jekas [21]

Answer:

Yes, it is a solution.

Step-by-step explanation:

$y = 3x-5\\\\16=3(7)-5\\\\16=21-5\\\\\boxed{16=16}$

The ordered pair is a solution to the equation.

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3 years ago

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Someone please solve this​

Someone please solve this