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algol [13]
3 years ago
13

Which expression is equivalent to 8a + 20?

Mathematics
2 answers:
Ipatiy [6.2K]3 years ago
6 0
<h2>Answer: 4(2a + 5)</h2>

i took the test ;)

I hope this helps!

Darina [25.2K]3 years ago
3 0
To determine the expression that is equivalent to 8a + 20, all you have to do is find the common denominator and divide the values by it.

8a + 20
8a/4 + 20/4
4(2a + 5).

The correct solution would cue the second option - 4(2a + 5).
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Am I correct here? All answers will be greatly appreciated!​
Rufina [12.5K]

Answer:

yes i believe you are correct

Step-by-step explanation:

8 0
3 years ago
Had to repost it for a better look if still cant see it txt me at 3343729907
kompoz [17]

Answer:

still cant see it sjwjejie

4 0
2 years ago
Please Help Giving Brainlist Find the area of the figure.
Anna [14]

Answer:

<u>108 m²</u>

Step-by-step explanation:

Area of the figure :

  • 3 x 6 + (3 + 3) x 6 + (3 + 3 + 3) x 6
  • 6 (3 + 6 + 9)
  • 6 (18)
  • <u>108 m²</u>
3 0
2 years ago
If an intravenous solution containing 123 mg of a drug substance in each 250-mL bottle is to be administered at the rate of 200
12345 [234]

Answer:

24.39mL of the solution would be given per hour.

Step-by-step explanation:

This problem can be solved by direct rule of three, in which there are a direct relationship between the measures, which means that the rule of three is a cross multiplication.

The first step to solve this problem is to see how many mg of the solution is administered per hour.

Each minute, 200 ug are administered. 1mg has 1000ug, so

1mg - 1000 ug

xmg - 200 ug

1000x = 200

x = \frac{200}{1000}

x = 0.2mg

In each minute, 0.2 mg are administered. Each hour has 60 minutes. How many mg are administered in 60 minutes?

1 minute - 0.2 mg

60 minutes - x mg

x = 60*0.2

x = 12mg

In an hour, 12 mg of the drug is administered. In 250 mL, there is 123 mg of the drug. How many ml are there in 12 mg of the drug.

123mg - 250mL

12 mg - xmL

123x = 250*12

x = \frac{250*12}{123}

x = 24.39mL

24.39mL of the solution would be given per hour.

7 0
3 years ago
Read the problem to choose the correct method, then solve. A farmer buys a tractor for $50,000. If the tractor depreciates 10% p
OlgaM077 [116]

Answer:

The correct option is, Exponential Decay, $23,914.85.

Step-by-step explanation:

A farmer buys a tractor for $50,000.

It is provided that the the tractor depreciates 10% per year.

The exponential function for decay is:

y=a\cdot (1-r\%)^{t}

Here,

a = initial value

r = decay rate

t = time

Compute the value of the tractor in 7 years as follows:

y=a\cdot (1-r\%)^{t}

  =50000\times (1-0.10)^{7}\\\\=50000\times 0.4782969\\\\=23914.845\\\\\approx 23914.85

Thus, the correct option is, Exponential Decay, $23,914.85.

5 0
3 years ago
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