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geniusboy [140]
3 years ago
8

Write the equation of a line in slope intercept form of a line that has a slope of 5 and a y

Mathematics
1 answer:
xenn [34]3 years ago
8 0

Answer: y=5x-8

Step-by-step explanation: slope intercept form is y=mx+b. M stands for the slope and B stands for the y-intercept. You just need to input what the question is telling you.

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Explain how to write 2.14 x 10 to the negative power of 5 in standard form by moving the decimal point
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21.4 * 10^(-5)

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Solve y-4=3x+5y for y
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y-4=3x+5y\qquad|\text{add 4 to both sides}\\\\y=3x+5y+4\qquad|\text{subtract 5y from both sides}\\\\-4y=3x+4\qquad|\text{divide both sides by (-4)}\\\\\boxed{y=-\dfrac{3x+4}{4}}

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How to do the 57th question?
Evgen [1.6K]

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Step-by-step explanation:

4 0
3 years ago
Andy buys x cakes. Betty buys 4 times as many cakes as Andy. Colin buys 3 more cakes than Andy. Each cake costs 65p. The total c
Paladinen [302]

Answer:

Each cake cost £ 13.00

Step-by-step explanation:

We were given that, each cake costs 65p or £ 0.65

Andy buys x cakes.

Andy's cost is

£0.65x


Betty buys 4 times as many cakes as  Andy.

Betty's cost is

£0.65(4x)

£2.60x


Colin buys 3 more cakes than Andy

Colin's cost is

£0.65(x+3)


The total cost of the cakes is £ 52.65.


This implies that,

0.65x+0.65(x+3)+2.60x=52.65


We expand to get,

0.65x+0.65x+1.95+2.60x=52.65


We group like terms to get,


0.65x+0.65x+2.60x=52.65-1.95

This gives us,

0.65x+0.65x+2.60x=52.65-1.95


This implies that,


3.9x=50.7


x=\frac{50.7}{3.9}


x=13


Therefore each cake cost £ 13.00






8 0
3 years ago
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