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2 years ago

How to write an algebraic expression for (r+1) /14

Mathematics

1 answer:

Fittoniya [83]2 years ago

8 0

I'm not so good but I think thatmeans r is a different number and its half of 14 so figure out an equation

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What is the length of the altitude of the equilateral triangle below?

ElenaW [278]

Answer:

Step-by-step explanation:

the height a creates with half of the baseline (5) and a leg (10) a right-angled triangle, and we can use Pythagoras to calculate a.

c² = a² + b²

c being the Hypotenuse (the side opposite of the 90° angle, so in our case the 10 side).

10² = a² + 5²

100 = a² + 25

75 = a²

a = sqrt(75) = sqrt(3×25) = 5×sqrt(3)

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1 year ago

A 12 foot ladder is leaning against the side of a building. The top of the ladder reaches 10 feet up the side of the building. A

Soloha48 [4]

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3 years ago

Ricky has seven dollars and one cent.<br> How is that amount written using a dollar sign?

Mashcka [7]

Answer:

$7.01

Step-by-step explanation:

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2 years ago

Read 2 more answers

To finish a certain job in 8 days, 6 workers are needed. If it is required to finish the same job in 2 days advance, how many wo

kotykmax [81]

Answer: 96 workers

Step-by-step explanation:

First you multiply 8 and 6 then by 2.

8 x 6= 48

48 x 2= 96

96 workers to help the business

4 0

2 years ago

A rectangular garden is extended 4% on the long sides and 8% on the short sides. To the nearest hundredth of a percent, by what

liq [111]

Answer: 12.32%

Step-by-step explanation:

1. $x$ is the original long side and $y$ is the original short side.

2. The area of the original rectangle is $xy$ .

3. The rectangle is extended 4% on the long sides and 8% on the short sides. therefore, the new long side is:

$\frac{104}{100}x=\frac{26}{25}x$

4. And the new short side is:

$\frac{108}{100}y=\frac{27}{25}y$

5. The new area is:

$(\frac{26}{25}x)(\frac{27}{25}y)=\frac{702}{625}xy$

6. The percentage of increase is calculated by substracting the new area and the original area:

$\frac{702}{625}xy-xy=0.1232xy$

7. The result is:

(0.1232)(100)=12.32%

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3 years ago