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3 years ago

Please I need help really bad

Mathematics

1 answer:

Allisa [31]3 years ago

8 0

Answer:

$80

Step-by-step explanation:

2 adults at $20 each

4 children at $10 each

20(2)+10(4)=80

40+40=80

80=80

why multiple 2 by 20?

because there are 2 adults and it costs $20 per adult

why multiple 4 by 10?

because there are 4 children and it costs $10 per child

why add them together?

because they want admission for 2 adults and 4 children so adding them together will give the total price

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How mcuh does a toothpick weigh in grams?

olya-2409 [2.1K]

I believe 100mg. I'm not so sure though but, you can always check google you know..

6 0

2 years ago

Find perimeter of the figure thanks and round to the nearest hundredth

Gnom [1K]

Answer:

40.56

Step-by-step explanation:

you need the circumference of the cirle aka perimeter of circle so 8(pi) and then because its only half, divided by 2... 12.56

now you hgave circumference so add 12.56 to 28 and there you go. you can round how ever necessary

7 0

2 years ago

Read 2 more answers

50 POINTS !! PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.

maks197457 [2]

Answer:

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Trigonometry

[Right Triangles Only] Pythagorean Theorem: a² + b² = c²

a is a leg
b is another leg
c is the hypotenuse

Step-by-step explanation:

Step 1: Define

Identify variables

Leg a = a

Leg b = 12

Hypotenuse c = 20

Step 2: Solve for a

Substitute in variables [Pythagorean Theorem]: a² + 12² = 20²
Evaluate exponents: a² + 144 = 400
[Subtraction Property of Equality] Isolate a term: a² = 256
[Equality Property] Square root both sides: a = 16

3 0

2 years ago

Read 2 more answers

Bruh can someone answer this I’ll give brainliest

3241004551 [841]

It’s a ! you add both of the numbers to get your missing perimeter.
I’m very sorry if it’s wrong but this is what I believe! stay safe

4 0

2 years ago

Find sin(a+B)

diamong [38]

Answer:

Cos A=5/13

we have

Cos² A= $1-Sin ²A$

25/169=1-Sin²A

sin²A=1-25/169

sin²A=144/169

Sin A= $\sqrt{144/169}=12/13$

again

Tan B=4/3

P/b=4/3

p=4

b=3

h= $\sqrt{3²+4²}=5$

Now

Sin B=p/h=4/5

in IV quadrant sin angle is negative so

Sin B=-4/5

CosB=b/h=3/5

Now

Sin(A+B):sinAcosB+CosAsinB

now 

substitute value

Sin(A+B):12/13*3/5+5/13*(-4/5)=36/65-4/13

=16/65 is a required answer

6 0

2 years ago