3 years ago

Crystal Can Ride her Bike 10 miles in 21 hours. What is her velocity ?

Mathematics

1 answer:

REY [17]3 years ago

6 0

Answer:

Step-by-step explanation:

10 miles isn't very far in 21 hours are those numbers correct?

Velocity is distance/time

10/21 =.476 mph

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Answer:

x = 50°

Step-by-step explanation:

180° - 80° = 100°

100° ÷ 2 = 50°

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Twellve concert tickets cost $450 what is the cost of 3 tickets to the same concert

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1) $450/12=$37.50
2)$37.50x3=$112.50

The answer is: $112.50

I hope this helps

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4 years ago

Four glasses of milk and 2 snack bars have a total of 72 carbohydrates (carbs), and 2 glasses of milk and 3 snack bars have a t

Travka [436]

One glass of milk has 11 carbs and one snack bar has 14 carbs.

Step-by-step explanation:

Let,

Glass of milk = x

Snack bar = y

According to given statement;

4x+2y=72 Eqn 1

2x+3y=64 Eqn 2

Multiplying Eqn 2 by 2

$2(2x+3y=64)\\4x+6y=128\ \ \ Eqn\ 3$

Subtracting Eqn 1 from Eqn 3

$(4x+6y)-(4x+2y)=128-72\\4x+6y-4x-2y=56\\4y=56$

Dividing both sides by 4

$\frac{4y}{4}=\frac{56}{4}\\y=14$

Putting y=14 in Eqn 1

$4x+2(14)=72\\4x+28=72\\4x=72-28\\4x=44$

Dividing both sides by 4

$\frac{4x}{4}=\frac{44}{4}\\x=11$

One glass of milk has 11 carbs and one snack bar has 14 carbs.

Keywords: linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago

what is the answer to this question: Tadeo volunteered at the library 6 times as many hours over the weekend as Dylan. Together,

monitta

Answer:

Tadeo: 12 hours
Dylan: 2 hours

Step-by-step explanation:

We can let d represent the number of hours that Dylan volunteered. Then Tadeo volunteered for 6d hours, and their total hours were ...

d +6d = 14

7d = 14 . . . . . . collect terms

d = 2 . . . . . . . divide by the coefficient of d

6d = 6(2) = 12

Tadeo volunteered 12 hours; Dylan volunteered 2 hours.

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2 years ago

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Answer:

Step-by-step explanation:

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