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3 years ago

7

There are 20 bicycles and 10 cars parked in the parking lot. Each bicycle had two wheels and each car had four wheels. How many

wheels are there in total?
wheels?

2 answers:

3241004551 [841]3 years ago

6 0

Answer:

80

Step-by-step explanation:

Inessa05 [86]3 years ago

5 0

Answer:

80

Step-by-step explanation:

(20 x 2) + (10 x 4) = 40 + 40 = 80

brainliest please ;)

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Calculate the slope given these two points (7,4) and (9,7)

34kurt

Answer:

3/2

Step-by-step explanation:

slope formula: $\frac{y2-y1}{x2-x1}$

where y2= 7

y1=4

x2=9

x1=7

so

$\frac{7-4}{9-7}$

3/2

Hope this helps!

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4 years ago

Calculate the first and second velocities of the car with three washers attached to the pulley, using the formulas v1 = 0. 25 m

Travka [436]

The first and second velocities of the car are 0.25/t1 and 0.50/t2 respectively.

Given data:

The value of the first distance is, d1 = 0.25 m.

The value of the second distance is, d2 = 0.50 m.

<h3>What is velocity?</h3>

The ratio of distance covered by an object in a specific direction and the time taken to cover the distance is known as the velocity of the object. Mathematically, the expression for the velocity is,

v = d/t

Here, d is the distance covered.

And t is the average time taken to cover the distance.

Then the first velocity of the car at 0.25 m is,

v1 = d1/t1

v1 = 0.25 / t1

Here, t1 is the average time for the first distance.

And the second velocity of the car with four washers at the 0. 50 m mark is,

v2 = d2/t2

v2 = 0.50 /t2

here, t2 is the average time for the second distance.

Thus, we can conclude that the first and second velocities of the car are 0.25/t1 and 0.50/t2 respectively.

To know more about Velocity click the link given below.

brainly.com/question/25796948?

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3 years ago

2x2 − 10x − 28 6x × 6 x − 7

Simora [160]

Answer:

no real solutions

Step-by-step explanation:

If equation is...

$2x^2 - 10x - 28 = 6x(6x) - 7\\2x^2 - 10x - 28 = 6x^2 - 7\\0 = 4x^2 + 10x + 21\\4x^2 + 10x + 21 = 0$

= no real solutions

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3 years ago

five twice the sum of a number and 3 is the same as 3 multiplied by 1 less than twice the number. what is the number?

aleksklad [387]

Answer: -4.5, but only if the phrase "five twice the sum . . ." means 5*2*(the sum of . . .). "five twice" is confusing, so please check the question.

Step-by-step explanation:

5*2*(X + 3) = 3*(2X - 1)

10X + 15 = 6X -3

4X = -18

X = -18/4

X = - 4.5

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3 years ago

If you are at - 15 on the number line and you wanted to move toward the positive integers, which direction along the number

-Dominant- [34]

Answer:

To the right

Step-by-step explanation:

The negatives on a number line are on the left side and the positives on the right.

see this as an example:

8 0

3 years ago

Read 2 more answers