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2 years ago

Please help this is due in 20 mins, I will give brainliest

Mathematics

2 answers:

lbvjy [14]2 years ago

8 0

Answer:

by Pythagoras law

(10√3)²=l²+(5√2)²

100×3-25×2=l²

l²=25o

l=√250=5√10

:.l=5√10

eduard2 years ago

6 0

Answer:

L = 5 $\sqrt{10}$

Step-by-step explanation:

use Pythagorean Theorem:

L² + (5 $\sqrt{2}$ )² = (10 $\sqrt{3}$ )²

L² + 25(2) = 100(3)

L² + 50 = 300

L² = 250

L = $\sqrt{250}$ = $\sqrt{25}$ · $\sqrt{10}$ = 5 $\sqrt{10}$

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aivan3 [116]

Initially, Alice had 28 sweets and Olivia 12 sweets.

Step-by-step explanation:

First assume that Aunty Joan has x number sweets.

Alice and Olivia shared the x sweets in a ration of 7:3, this means

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$\frac{7}{10} x-3$

Then the new ratio changes to 5:3 which means Alice will have 5/8 x number of sweets.

Equate the number of sweets for Alice in the two cases, which is

$\frac{5}{8}x=\frac{7}{10} x-3\\ \\\frac{7}{10} x-\frac{5}{8} x=3\\$

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So there were 40 sweets at first

Using the ratio of 7:3 then

Alice had 7/10 *40 = 28 sweets

Olivia had 3/10*40= 12 sweets

Alice gave Olivia 3 sweets, so she will remain with 28-3 =25 sweets. Olivia will now have 15 sweets.The new ratio will be 25:15 simplified as 5:3.

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3 years ago

Help. What’s the answer to this problem?

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Answer:

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Step-by-step explanation:

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2 years ago

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1 year ago

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vfiekz [6]

Answer:

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2 years ago

Read 2 more answers

Write an equation for a line perpendicular to y = 5x - 4 and passing through the point (15,-1)

VLD [36.1K]

Answer:

y = -1/5 x + 2

Step-by-step explanation:

y = 5x - 4

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2 years ago