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3 years ago

Find the numerator for the equivalent fraction. 1/4 = x/20

Mathematics

1 answer:

Rama09 [41]3 years ago

8 0

Answer:

The numerator is 5.

Step-by-step explanation:

You would multiply the numerator by 5 as the denominator multiplies by 5.

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I think of a number, multiply it by 2, add 7 and the result is 10

timama [110]

Answer:

3/2

Step-by-step explanation:

if you multiply 3/2 by 2 and add 7 you will get 10.

3/2 * 2 = 3

3 + 7 = 10

5 0

3 years ago

Find the correct value of x

bearhunter [10]

Answer: x = 20

Step-by-step explanation:

Right angle = 90

90 - 47 = 43

43 - 3 = 40

40/2 = 20

3 0

2 years ago

PLEASE HELP<br> NO LINKS

bezimeni [28]

Answer:

The first blank is $640.30

The second blank is 670

Step-by-step explanation:

6 0

3 years ago

Find the values of x and y

zhuklara [117]

You can use a tangent:

$tangent=\dfrac{opposite}{adjacent}$

We have opposite = 17 and adjacent = x.

$\tan30^o=\dfrac{\sqrt3}{3}$

substitute:

$\dfrac{17}{x}=\dfrac{\sqrt3}{3}$ cross multiply

$x\sqrt3=(3)(17)$ multiply both sides by √3

$x(\sqrt3)(\sqrt3)=51\sqrt3$

$3x=51\sqrt3$ divide both sides by 3

$x=17\sqrt3$

Use the Pythagorean theorem:

$y^2=(17\sqrt3)^2+17^2\\\\y^2=289(\sqrt3)^2+289\\\\y^2=289\cdot3+289\\\\y^2=867+289\\\\y^2=1156\to y=\sqrt{1156}\\\\y=34$

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Other method.

$30^o-60^o-90^o$ triangle.

The sides are in the ratio $1:2:\sqrt3\to17:y:x$

Therefore

$17:(2\cdot17):(17\sqrt3)\to17:34:17\sqrt3\to x=34,\ y=17\sqrt3$

4 0

3 years ago

4.7 is 10 times as much as what number

viktelen [127]

Answer: 4.7 is 10 as much as the number 0.47.

If you multiply 0.47 x 10 it will equal 4.7

4 0

3 years ago

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