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lorasvet [3.4K]
3 years ago
12

When Derek planted a tree it was 36 inches tall. The tree grew 1 inches per year. The tree is now 44 inches tail. How many years

ago did Derek plant the tree?
Mathematics
1 answer:
stealth61 [152]3 years ago
3 0
44-36=8
Derek planted the tree 8 years ago

Plz mark me brainliest!
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A company produces metal slabs for industrial use. the slabs come in 3 thicknesses: 5in, 10in, and 15in. the weights of each thi
Len [333]

Given slabs thicknesses 5in, 10in, and 15in.

Therefore,<u> </u><u>ratio of thicknesses in simplest form would be 1:2:3.</u>

Metal 1 thicknesses =  150lbs, 300lbs, 600lbs

Dividing by 150, we get ratio of Metal 1 thicknesses = 1:2:4.

Metal 2 thicknesses = 130lbs, 260lbs, 390lbs.

Dividing by 130, we get ratio of Metal 2 thicknesses =  1:2:3.

Metal 3 thicknesses = 310lbs, 620lbs, 930lbs.

Dividing by 310, we get ratio of Metal 3 thicknesses = 1:2:3.

Metal 4 thicknesses = 140lbs, 280lbs, 420lbs.

Dividing by 140, we get ratio of Metal 4 thicknesses = 1:2:3.

<u>We can see the ratios of thicknesses of Metal 1 are 1:2:4 but it should be 1:2:3.</u>

Therefore, Metal 1 weight is not proportional to thickness.


5 0
3 years ago
Read 2 more answers
Please help me, solve for y 2x-y=5
Novosadov [1.4K]
<span><span><span>2x</span>−y</span>=5

</span>Add -2x to both sides.

<span><span><span><span>2x</span>−y</span>+<span>−<span>2x</span></span></span>=<span>5+<span>−<span>2x

</span></span></span></span><span><span>−y</span>=<span><span>−<span>2x</span></span>+5

</span></span>Divide both sides by -1.<span><span><span><span><span>
</span></span></span></span></span><span><span>
\frac{-y}{-1} =  \frac{-2x+5}{-1}
‌</span></span><span>y=<span><span>2x</span>−5

</span></span>Answer:

<span>y=<span><span>2x</span>−<span>5</span></span></span>
3 0
3 years ago
Please help!!!!!!!11
jeyben [28]

Answer:

a = 6 , b = 5

Step-by-step explanation:

using the rule of radicals

\sqrt{a} × \sqrt{b} = \sqrt{ab}

then

\sqrt{180}

= \sqrt{36(5)}

= \sqrt{36} × \sqrt{5}

= 6\sqrt{5}

with a = 6 and b = 5

3 0
2 years ago
Read 2 more answers
What is 0.125, 0.09 and 11 over 100 as percentages?
makvit [3.9K]
For decimals, move the decimal point 2 units to the right to get the percentage.
0.125 = 12.5%
0.09 = 9%

for fractions, if it is over 100, make it the percentage of the number
so for 11 over 100, it is 11%
for example, 50 over 100, it is 50%

if it is not over one hundred, divide the numerator to denominator to get a decimal, and then make it into a percentage
for example 11/35. 11 divided by 35 is 0.31
0.31 = 31%

that is just an example

hope this helps 
8 0
3 years ago
Easy 10 points answer all 5 questions.
Korolek [52]
Answer for 1 is 22 degrees
7 0
3 years ago
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