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3 years ago

25x + 4x = x + 3x +7

2 answers:

7 0

For this equation its the same as simplifying any other equation -Simplify both sides of the equation then isolate the variable- Easy then once you've do so the answer should be

x = $\frac{7}{26\\}$

sveta [45]3 years ago

5 0

frist you want to combine like terms on both sides

step one: 25x+4x 3x+x

step two: 29x=4x +7 subtract 4x over to the other side

25X=7

step three divide both sides by 25

so the answer is x= $\frac{7}{25}$

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Area of 16+8×+×^2meters. What is the side length

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Answer:

x +4

Step-by-step explanation:

The trinomial x² +8x +16 is a perfect square trinomial, so factors as ...

x² +8x +16 = (x +4)²

Assuming the side length is one of the factors of the given area, it will be ...

side length = (x +4)

5 0

3 years ago

Jenny’s mom gave her one dollar on the day she was born. She plans to triple the amount she gives her every day. How much will s

astraxan [27]

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19,683

Step-by-step explanation:

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3 years ago

During her first year of college, Sara put $2000 in the bank to save for a trip to Italy after graduation. The money earned 3% s

vodomira [7]

Answer:

Sara will have US$ 2,251.02 in the bank after 4 years for her trip to Italy.

Step-by-step explanation:

1. Let's review the data given to us for solving the question:

Investment of Sara during her 1st year of college = US$ 2,000

Duration of the investment = 4 years

Annual interest rate = 3%

2. Let's find the future value of this investment after 4 years, using the following formula:

FV = PV * (1 + r) ⁿ

PV = Investment of Sara during her 1st year of college = US$ 2,000

number of periods (n) = 4

rate (r) = 3% = 0.03

Replacing with the real values, we have:

FV = 2,000 * (1 + 0.03) ⁴

FV = 2,000 * (1.03) ⁴

FV = 2,000 * 1.12550881

FV = 2,251.02

Sara will have US$ 2,251.02 in the bank after 4 years for her trip to Italy.

7 0

3 years ago

Read 2 more answers

What is (r/s) (3) =

Natasha2012 [34]

pretty sure that the answer is 2 cuz

8 0

3 years ago

Trig: A sector of a circle has area 25 cm2 and centralangle

Alchen [17]

Answer: Radius = 10 cm and Arc length = 5 cm

Step-by-step explanation:

The area of a sector with radius r and central angle $\theta$ (In radian) is given by :-

$A=\dfrac{1}{2}r^2\theta$

Given : A sector of a circle has area $25 cm^2$ and central angle 0.5 radians.

Let r be the radius , then we have

$25=\dfrac{1}{2}r^2(0.5)\\\\\Rightarrow\ r^2=\dfrac{2\times25}{0.5}\\\\\Rightarrow\ r^2=\dfrac{50}{0.5}=100\\\\\Rightarrow\ r=\sqrt{100}=10\ cm$

Thus, radius = 10 cm

The length of arc is given by :-

$l=r\theta=10\times0.5=5\ cm$

Hence, the length of the arc = 5 cm

3 0

3 years ago