3 years ago

Write an equation for : Three times a number decreased by five is equal to twenty five.

Mathematics

1 answer:

max2010maxim [7]3 years ago

6 0

Answer:

3x-5=25

Step-by-step explanation:

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Answer:

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2 years ago

The equation tan(55) = 15/b can be used to find the length of line AC.what is the length of line AC round to the nearest 10th 3.

Nadusha1986 [10]

Answer:

10.5 in

Step-by-step explanation:

Given

$tan(55) = \frac{15}{b}$

Required

Find length AC

The question is not detailed enough; so, I'll assume that b represents line AC.

Having said that;

We start by multiplying both sides by b

$tan(55) = \frac{15}{b}$

$b * tan(55) = \frac{15}{b} * b$

$b * tan(55) =15$

Divide both sides by tan(55)

$\frac{b * tan(55)}{tan(55)} = \frac{15}{tan(55)}$

$b = \frac{15}{tan(55)}$

Find tan(55)

$b = \frac{15}{1.42814800674}$

$b = 10.5031130731$

$b = 10.5$ <em>(Approximated)</em>

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Length AC is 10.5

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3 years ago

Read 2 more answers

Solve the system of equations

Llana [10]

Because both answers equal y, we can set them equal to each other. So, -8x=-5x-9. Add five over to get -3x=-9. Divide and x=3. Then plug 3 in to solve for y. -8(3)=24. The ordered pair is (3,24).

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3 years ago

PLEASE HELP ASAP! 20 POINTS AND ILL GIVE YOU A BRAINLIEST!!

nikitadnepr [17]

It is A because you are adding 3 to in if you were to subtract then it will go down not up.

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3 years ago