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3 years ago

Please help me very little time left

Mathematics

1 answer:

expeople1 [14]3 years ago

8 0

5/6 is the answer because you plug in your numbers to the variables which is 5/2x3 so you simplify it down to 5/6

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Rocky is standing on a sidewalk made of cement squares. He will toss a coin 4 times. For each head, he'll move one square forwar

Elena L [17]

Answer:

Rocky is 5 squares behind the starting line.

8-6=2

2-4=-2

-2-9=-11

-11+6=-5

Step-by-step explanation:

Hope this helps:)

5 0

2 years ago

Two gears in a machine are aligned by a mark drawn from the center of one gear to the center of the other. If the first gear has

Aleksandr [31]

Answer:

Step-by-step explanation:

for the first gear

revolutions/teeth

1 / 24

2 / 48

3 / 72

4 / 96

5 / 120

6 / 144

for the second gear

revolutions/teeth

1 / 40

2 / 80

3 / 120

4 / 160

<em>the two marks will meet after 120 teeth, 5 revolutions of the first gear and 3 revolutions of the second.</em>

the way to get that amount of teeth is

$24 = 2 \times 2 \times 2 \times 3 = {2}^{3} \times 3$

$40 = 2 \times 2 \times 2 \times 5 = {2}^{3} \times 5$

the Least Common Multiple equals the product of all factors, but those factors who are repeted for both numbers should be only once.

${2}^{3} \times 5 \times 3 = 120$

120 teeth are 5 revolutions for gear1 and 3 por gear2

8 0

3 years ago

Find the area of a circle that has a diameter = 18

ki77a [65]

Answer:

About 254.469 square units

Step-by-step explanation:

To find the area of a circle, you need to multiply the square of the radius by pi. To find the radius of a circle, you need to divide the diameter by 2, which in this case is 18/2=9. Now, you can plug it into the formula to find that the area of this circle is $\pi \cdot 9^2 \approx 254.469$ . Hope this helps!

4 0

3 years ago

Natalia bought 8 glitter wands for $50. Determine whether or not each wand purchase below has the same price per wand as glitter

viva [34]

Answer:

Sparkle wands: NO

Fairy wands: YES

Glass wands: NO

Step-by-step explanation:

To find the price per glitter wand, you have to divide the price of the wands by the amount of wands you have.

$50/8 = $6.25

Divide the price of the wands by the amount you get.

Sparkle wands: $20/4 = $5

Fairy wands: $37.50/6 = $6.25

Glass wands: $65/10 = $6.50

The sparkle wands and the glass wands do not have the same price per wand as glitter wands.

The fairy wands have the same price per wand as glitter wands.

8 0

2 years ago

I need help with number 16

Alex

Answer:72 in

Step-by-step explanation:

When we are looking for the area of something we always multiply the numbers they give us.

7 0

3 years ago