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3 years ago

Which of the lines that appear in the graph would be parallel to a line with a slope of 3 and a y intercept at 0,3

Mathematics

1 answer:

Arlecino [84]3 years ago

3 0

Answer:

Line AB

Step-by-step explanation:

The line is on crosses thru the exact points so its right.

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Please help me 33/2 + 3y/5 = 7y/10 + 15

8090 [49]

We are given with an equation in variable y and we need to solve for y . So , now let's start !!!

We are given with ;

${:\implies \quad \sf \dfrac{33}{2}+\dfrac{3y}{5}=\dfrac{7y}{10}+15}$

Take LCM on both sides :

${:\implies \quad \sf \dfrac{165+6y}{10}=\dfrac{7y+150}{10}}$

Multiplying both sides by 10 ;

${:\implies \quad \sf \cancel{10}\times \dfrac{165+6y}{\cancel{10}}=\cancel{10}\times \dfrac{7y+150}{\cancel{10}}}$

${:\implies \quad \sf 165+6y=7y+150}$

Can be further written as ;

${:\implies \quad \sf 7y+150=165+6y}$

Transposing 6y to LHS and 150 to RHS

${:\implies \quad \sf 7y-6y=165-150}$

${:\implies \quad \bf \therefore \quad \underline{\underline{y=15}}}$

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2 years ago

One million people have equal chances of being called by telephone from a broadcasting show. Determine the probability of one pa

Softa [21]

One out of one million

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3 years ago

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Please help me with this . i’m going to give out the brainly thingy

Wewaii [24]

Answer:

Comment if you ready for me to give you an answer

Also message me please.

Step-by-step explanation:

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3 years ago

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The answer is 5,-2,-3 but i need help with steps that make sense

olga nikolaevna [1]

$\left\{\begin{array}{ccc}x+3y-z=2\\4x+2y+5z=1\\3x+z=12&\to z=12-3x\end{array}\right\\\\\text{substitute the value of z to the first and second equation}\\\\\left\{\begin{array}{ccc}x+3y-(12-3x)=2\\4x+2y+5(12-3x)=1\end{array}\right\\\\\left\{\begin{array}{ccc}x+3y-12+3x=2&|+12\\4x+2y+60-15x=1&|-60\end{array}\right\\\\\left\{\begin{array}{ccc}4x+3y=14&|\cdot2\\-11x+2y=-59&|\cdot(-3)\end{array}\right$

$\underline{+\left\{\begin{array}{ccc}8x+6y=28\\33x-6y=177\end{array}\right}\ \ \ \ |\text{add both sides of the equations}\\.\ \ \ \ \ \ \ 41x=205\ \ \ \ |:41\\.\ \ \ \ \ \ \ x=5\\\\\text{substitute the value of x to the first equation}\\\\4(5)+3y=14\\20+3y=14\ \ \ \ |-20\\3y=-6\ \ \ \ \ |:3\\y=-2\\\\\text{substitute the value of x to the equation:}\ z=12-3x\\\\z=12-3(5)=12-15=-3\\\\x=5,\ y=-2,\ z=-3\to(5,\ -2,\ -3)$

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4 years ago

Mobile phone calls are charged at 17 cents per 30 seconds.

vovikov84 [41]

0.17/30 = x/450 Use proportion

76.50 = 30x Cross multiply

2.55 = x Divide 30 both sides

7.5 minutes call would cost 2.55

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