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2 years ago

8

Find all y such that the distance between the points (8,10) and (4,y) is 20.

1 answer:

andriy [413]2 years ago

8 0

Answer:

y = 394

Step-by-step explanation:

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They make a base of 50 gallons (20%). They make a “heavy batch of 150 gallons (80%) They mix them both. What is the percent of

SSSSS [86.1K]

Answer #1: x= 250

50 = x times 20/100

X= 100 times 50/ 20

X=250

Answer #2: same explanation but the answer is X= 120

If your talking about merging the percentage of the answer, I can’t help you with that

4 0

2 years ago

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-5x-18y=-28 and -10x+9y=-11 solve elimination

Dmitry [639]

Answer:

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$x=2,\:y=1$

Step-by-step explanation:

Given the equations

$-5x-18y=-28$

$-10x+9y=-11$

solving the system of the equation by elimination method

$\begin{bmatrix}-5x-18y=-28\\ -10x+9y=-11\end{bmatrix}$

$\mathrm{Multiply\:}-5x-18y=-28\mathrm{\:by\:}2\:\mathrm{:}\:\quad \:-10x-36y=-56$

$\begin{bmatrix}-10x-36y=-56\\ -10x+9y=-11\end{bmatrix}$

$-10x+9y=-11$

$-$

$\underline{-10x-36y=-56}$

$45y=45$

$\begin{bmatrix}-10x-36y=-56\\ 45y=45\end{bmatrix}$

solve 45y=5 for y:

$45y=45$

$\frac{45y}{45}=\frac{45}{45}$

$y=1$

$\mathrm{For\:}-10x-36y=-56\mathrm{\:plug\:in\:}y=1$

solve $-10x-36\cdot \:1=-56$ for x:

$-10x-36\cdot \:1=-56$

$-10x-36=-56$

Add 36 to both sides

$-10x-36+36=-56+36$

$-10x=-20$

$\frac{-10x}{-10}=\frac{-20}{-10}$

$x=2$

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$x=2,\:y=1$

5 0

2 years ago

Francisco’s game involves 3 green, 2 yellow, 4 red, and 3 black marbles.If he randomly draws three marbles from the bag, without

ElenaW [278]

Answer is b

Step-by-step explanation:

I already did it

5 0

2 years ago

What is the answer to this fraction 260/290=

Tcecarenko [31]

$260 \div 290$
$0.89$
If you round the number it would be 0.9

8 0

2 years ago

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My sister promised to buy me 6 scrunchieas for every two laps I completed. I ran the whole race, which was 12 laps. How many scr

Ymorist [56]

Answer:

12 ÷ 2 = 6

6 × 6 = 36

36 scrunchies

7 0

2 years ago

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