3 years ago

‼️WILL LIST BRAINLIEST ‼️What is the product of - 1 3/8 and 2 4/5 expressed as a mixed number?

Mathematics

1 answer:

love history [14]3 years ago

6 0

Answer:

jnjnmmknkn

Step-by-step explanation:

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In rectangle ABCD, AC = -x + 21, BP = -9x + 19, and DP = -y + 5. Find the value of y.

creativ13 [48]

Answer:

y=-5

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The diagonals of a rectangle are equal and bisect each other

$BP=\frac{1}{2}AC$

$DP=BP$

step 1

Find the value of x

$BP=\frac{1}{2}AC$

substitute the given values

$(-9x+19)=\frac{1}{2} (-x+21)$

solve for x

Multiply by 2 both sides

$-18x+38=-x+21$

$18x-x=38-21\\17x=17\\x=1$

step 2

Find the value of y

$DP=BP$

we have

$BP=-9x+19$

$DP=-y+5$

substitute

$-y+5=-9x+19$

substitute the value of x

$-y+5=-9(1)+19\\-y+5=10\\y=5-10\\y=-5$

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‼️WILL LIST BRAINLIEST ‼️What is the product of - 1 3/8 and 2 4/5 expressed as a mixed number?​

‼️WILL LIST BRAINLIEST ‼️What is the product of - 1 3/8 and 2 4/5 expressed as a mixed number?