2 years ago

HELP! FINALSS!

Mathematics

2 answers:

Lilit [14]2 years ago

8 0

The answer is D because 3ft 9 is 45 inches. 45/18 equals 2.5

gladu [14]2 years ago

4 0

Answer:3 1/2 ft = 7/2 ft

(7/2) 12/1 = 42 in.

Then: 42 / (5/8)

42 (8/5)

336/5

67 1/5

you can stack 67 books

Step-by-step explanation:

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sammy [17]

I think the answer is 5

7 0

2 years ago

One hundred eighty is equal to how many tens

Nadya [2.5K]

There are 18 tens in 180 because if you divide 180 divided by 10, you get 18. you can also do it in your head!!!
Hope this helps!!!

5 0

2 years ago

Please solve for x. (-:<br><br> Also please show me a step-by-step, thanks! uwu

Stells [14]

Answer:

$x=27$

Step-by-step explanation:

we know that

$(3x+9)^o+90^o=180^o$ ----> by supplementary angles (form a linear pair)

Solve for x

Combine like terms

$(3x+99)^o=180^o$

subtract 99 both sides

$3x=180-99\\3x=81$

Divide by 3 both sides

$x=27$

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2 years ago

Which ordered pair is a solution of the equation y=-5/4x -2

Anettt [7]

Answer:

Step-by-step explanation:

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4 0

2 years ago

Find two different 2 by 2 matrices a and b such that ab=ba

stiv31 [10]

Let $\mathbf A=\mathbf I$ be the identity matrix. Then pick whatever matrix you like for $\mathbf B$ .

8 0

2 years ago