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4 years ago

What Is 89 ÷ 32 + 18 ? Please Help Will mark Brainliest.

Mathematics

2 answers:

lutik1710 [3]4 years ago

8 0

20 is the answer to that!

Sedaia [141]4 years ago

3 0

Answer:

20.78125

Step-by-step explanation:

hope it helps

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Solve the equation for the given variable. justify each step.

s344n2d4d5 [400]

Answer: y= $\frac{5-9x}{2}$

s=-30+10t

Step-by-step explanation:

9x + 2y = 5; y

9x-9x+2y = 5-9x

2y=5-9x

y= $\frac{5-9x}{2}$

1/15s - 2/3t = -2; s

(1/15s - 2/3t = -2)*15 ==> Get rid of fraction by multiplying both sides by 15

s - 30/3 t=-30

s-10t=-30

s=-30+10t

5 0

2 years ago

An open box is made from a 20 cm x 3 cm piece of tin by cutting a square from each corner and folding up the edges. The area of

Marta_Voda [28]

Answer:

Length of the final sides: 6 cm and 16 cm

Step-by-step explanation:

The lengths of the sides of the original box are

$L=20 cm\\W=10 cm$

Later, a piece of tin is cut out from each corner; the piece cut out has the shape of the square: we can call the length of its generic side x. Therefore, the dimensions of the box will now be:

$L'=L-2x\\W'=W-2x$

We also know that the area is

$A=96 cm^2$

And the area can be written as product of length and width, therefore:

$A=L'W'$

So we find:

$A=(L-2x)(W-2x)\\96=(20-2x)(10-2x)$

Solving for x,

$96=200-20x-40x+4x^2\\4x^2-60x+104=0\\\\x^2-15x-26=0$

Which has two solutions:

x = 13 cm (this is larger than the initial length of the width, therefore we discard it)

x = 2 cm

So, the length of the new sides are

$L=20-2x=20-2(2)=16 cm\\W=10-2x=10-2(2)=6 cm$

7 0

3 years ago

What is 2+2+2-2+87 plz tell me so u would get 100 points

DedPeter [7]

Answer:

The answer is 91.

Step-by-step explanation:

Since 2+2+2=6 and you subtract 2 that would now be 6-2, and that is 4.

87+4=91.

Simply 6-2=4

87+4=91

6 0

3 years ago

Hepppppppppppppppppppppp

andrew11 [14]

Answer: b=13.75

Step-by-step explanation:

Use Pythagorean theorem

a^2+b^2=c^2

We know c, the hypotenuse, because the hypotenuse is opposite the right angle. It is 17

We also know a, one of the legs. It is 10.

Plug the number we know into the formula

10^2+b^2=17^2

100+b*2=289

Subtract the 100 on both sides

b^2=189

Take the square root of both sides

b=13.7477271

Rounded to the nearest Hundredth,

b=13.75

Hope this helped! :)

7 0

3 years ago

An employee earned $31,900.00 in a year and had $2,328.70 withheld for federal income tax. What federal income tax percent was w

belka [17]

Answer:

7.3%

Step-by-step explanation:

2,328.70 / 31,900

(You might want a calculator)

0.073

turn this into a percentage

7.3%

Doesnt need to be rounded.

4 0

3 years ago