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3 years ago

Enter your answer and show all the steps that you use to solve this problem.

Mathematics

1 answer:

valina [46]3 years ago

6 0

You will save $9

Convert 20% to decimal

Each % is 0.01 so 20×0.01=0.2

Then multiply

45×0.2=9

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How would I solve this?? 5p-8(p+1)>16

alexandr402 [8]

*To solve inequalities is similar to solving equations: isolate the desired variable to one side.

So firstly, distribute -8 to (p + 1):

$5p-8p-8>16$

Next, combine like terms:

$-3p-8>16$

Next, add 8 to both sides:

$-3p>24$

Lastly, divide both sides by -3. Now since you are dividing by a negative, you will be flipping the inequality symbol as well. Your final answer will be $p$

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3 years ago

What is the slop of a line perpendicular to the line whose equation is 4x+6y=108. Reduce your answer

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3 years ago

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3 years ago

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WILL GIVE BRAINLIST SOON AS I CAN SOMEBODY PLEASE HELP ME

fgiga [73]

Answer:

A= 75.06 Sq Cm

Step-by-step explanation:

Please refer to the picture attached with this.

In ΔABD

AB = 8.5 , AD = 6 and say BD = x

Applying Pythagoras theorem in this triangle

Pythagoras theorem says

$a^2+b^2=c^{2}$

where c is the side opposite to the right angle, and b and a are the other two sides of the right angled triangle.

$x^2+6^2=8.5^{2}$

$x^2=72.25-36$

$x^2=36.25$

$x=6.02$

Hence side $a = x +19$

a = 6.02+19

a = 25.02

Now we apply the formula for area of a triangle which is given as

$A=\frac{1}{2}\times b \times h$

Where b is the base , here we have base as a = 25.02

h is the height , here h = 6

Putting these values in Formula we get

$A=\frac{1}{2}\times 25.02 \times 6$

$A= 25.02 \times 3$

$A=75.06$

Hence Area of the triangle is 75.06 sq cm

5 0

3 years ago

Maggie's brother is 3 years younger than four times her age. The sum of their ages is 62. How old is Maggie? Maggie is years old

Nadusha1986 [10]

Answer:

Maggie is 13 years old.

Step-by-step explanation:

1M + 1B = 62

rearrange to get:

1B = 62 - 1M

4M - 3 = 1B

substitute B with 62 - 1M so there is only one variable. this gives:

4M - 3 = 62 - 1M

Get all the variables on one side:

4M + 1M - 3 = 62

Get all non variables on the other side:

4M + 1M = 62 + 3

simplify:

5M = 65

Divide both sides by 5 to get the M by itself:

M = 13.

BONUS:

M + B = 62

B = 49

So her brother is 49 years old.

Maggie is 13 years old.

5 0

3 years ago