2 years ago

Pls help I need this asap

Mathematics

1 answer:

VMariaS [17]2 years ago

7 0

Answer:

9/40 hours, or 0.225 hours depending on how you have to answer

Step-by-step explanation:

Find a common denominator, which would be 45. 1/5 * 9 = 9/45 inches/hour, 8/9 = 40/45 inches, to find how many hours it has been you divide 9/45 by 40/45, (9/45)/(40/45)=/225, or 9/40

You might be interested in

Using the converse of Pythagorean Theorem and the law of sines and cosines solve the word problem.

Helga [31]

Answer:

It's the law of cosines

Step-by-step explanation:

law of cosines states that $c^{2} =a^{2} +b^{2} -2ab (cos(\alpha ))$

so we know that a = 7, b = 4, and alpha would be 135 degrees, so just plugging it in gets us 49+16-2*7*4*(-0.707) = 65 + 39.59 = 104.59

7 0

3 years ago

How do you find the area of a cube measuring 3ft it has 7sides

RUDIKE [14]

3 times 7= 21 times three =63

4 0

3 years ago

6x — 4 > 14or3х + 10 < 4

Ipatiy [6.2K]

9514 1404 393

Answer:

x < -2 or 3 < x

Step-by-step explanation:

6x > 18 . . . . add 4

x > 3 . . . . . . divide by 6

3x < -6 . . . . subtract 10

x < -2 . . . . . divide by 3

The solution is the union of disjoint sets:

x < -2 or x > 3

3 0

3 years ago

Adele, Barbara and Colette share $680 in the ratio 9 : 7 : 4. Calculate the amount that Barbara and Collette each receives.

anzhelika [568]

Answer:

i hope this helps

Step-by-step explanation:

6 0

3 years ago

Drag steps in the given order to evaluate this expression.

Orlov [11]

Answer:

Step-by-step explanation:

(-3)(2)-7(-3)-10

-6+21-10

15-10

5 0

4 years ago