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3 years ago

The ratio of boys to girls at a local sports club is 3 to 1 if there are 45 girls, how many boys are there

Mathematics

1 answer:

marysya [2.9K]3 years ago

3 0

Answer:

135

Step-by-step explanation:

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Can somebody please help me with question number 1

inysia [295]

Answer:

1a: 6.283

b: 51.313

c: 285.1

Step-by-step explanation:

Area of a sector = (angle/360)πr²

Area=(45/360)π(4²)=6.283

Area=(120/360)π(7²)=51.313

Area=(270/360)π(11²)=285.1

6 0

2 years ago

What is the lowest common factor of 5 and 9

neonofarm [45]

Answer:

534

Step-by-step explanatio

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2 years ago

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vladimir1956 [14]

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3 years ago

Mrs.Henry hires a local moving company to help her move into her new apartment. The price includes a 15% tip. Mrs.Henry's total

tensa zangetsu [6.8K]

162.15 is the answer because you have to multiply 0.15•141 then add 21.15 to the 141 :)

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2 years ago

Read 2 more answers

HELPPPPPP this is due tonight!!!!

laiz [17]

Answer:

(1) Commutative property

(2) Distributive property/Definition of addition

(3) Compatibility with addition/Existence of additive inverse/Modulative property

(4) Compatibility with multiplication/Associative property/Definition of division/Existence of additive inverse/Commutative and modulative properties/Result

Step-by-step explanation:

We proceed to solve algebraically and explain each step:

1) $4\cdot x +1 +x + 3 = -11$ GIven

2) $4\cdot x +x +1 + 3 = -11$ Commutative property

3) $(4+1)\cdot x +4 = -11$ Distributive property/Definition of addition

4) $5\cdot x +4 = -11$ Definition of addition

5) $5\cdot x +4 -4 = -11-4$ Compatibility with addition

6) $5\cdot x = -15$ Existence of additive inverse/Modulative property

7) $\frac{1}{5}\cdot (5\cdot x)= \frac{1}{5}\cdot (-15)$ Compatibility with multiplication

8) $x = - 3$ Associative property/Definition of division/Existence of additive inverse/Commutative and modulative properties/Result

Hence, we have the following answers:

(1) Commutative property

(2) Distributive property/Definition of addition

(3) Compatibility with addition/Existence of additive inverse/Modulative property

(4) Compatibility with multiplication/Associative property/Definition of division/Existence of additive inverse/Commutative and modulative properties/Result

6 0

3 years ago