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2 years ago

The sum of three consecutive numbers is 84. What is the largest of these numbers?

Mathematics

1 answer:

qwelly [4]2 years ago

7 0

Answer:

Step-by-step explanation:

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Ming rented a bike from Castel's Bikes. It

Marina CMI [18]

Answer:

Ming rented the bike for 8 hours. Hope this helps!

5 0

3 years ago

Decrease 248 by 30%

Snowcat [4.5K]

Okay this equation really says is what is 30% of 248.

So, lets convert 30% to a fraction, 3/10 which is easier to work with.

All you have to do now is get out a calculator and do 248 *3/10 (or .3) and get 74.4

So subtract 74.4 and get

173.6

8 0

3 years ago

given total 72 stitches and 1 stitch takes 1/4 inch, so total yarn used : 18 inch 36 inch = 3 feet = 1 yard divide by 2 18 inch

dezoksy [38]

I hope this helps you

if 1 stitch 1/4 inch

72 stitches ? inches

?=72.1/4

?=18 inches

8 0

4 years ago

Every week, Hector’s 20 hours earns $210.00. He earns a constant amount of money per hour.

lesantik [10]

Answer: 20 weeks in 1 week

in 2 weeks 40

Step-by-step explanation:

This proves that the equation is true

3 0

3 years ago

1. Write out the law of cosines and find the hypotenuse of triangle with 2 sides lengths equal to three and the included angle m

LUCKY_DIMON [66]

Answer:

1.) $\sqrt{13.341}$ ≈ 3.652

2.) I would say something about how the A in front of cos in the equation would change to 90, rather than stay 75 (in the equation for the step by step), but it would be easier to just use the Pythagorean theorem.

Step-by-step explanation:

I think we may have the same class so hopefully this helps:

1.) $a^2 = b^2 + c^2 - 2bccosA$ --> law of cosines formula.

$a^2 = 3^2 + 3^2 - 2(3)(3)cos(75)$ --> plugged in numbers; when you draw the triangle, the included angle would be A, and the opposite side would be a. B and b, and C and c are opposite each other. In this case, a is the hypotenuse.

$a^2 = 18 - 18cos75$ --> in between steps.

$a^2 = 13.341$ --> more simplifying.

$a(hypotenuse) = \sqrt{13.341} or 3.652$ --> answer

2.) This one is just an explanation: The 75 in the equation is the given angle, which is a. If this changes, it would just change in the equation too. And obviously, if it's 90 degrees, you can just use Pythagorean theorem a^2+b^2=c^2.

Good luck! :)

6 0

3 years ago