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nikdorinn [45]
3 years ago
13

Simplify: a + 4b+9 +6a +2a

Mathematics
2 answers:
S_A_V [24]3 years ago
7 0

Answer:

a+6a+2a+4b+9

9a+4b+9

Anit [1.1K]3 years ago
3 0

Answer:

9a + 9 + 4b

Have a wonderful day!  :D

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Will mark the brainliest
Sati [7]

Answer:

B.   60x^8

Step-by-step explanation:

4x^2\sqrt{5x^4} \cdot 3\sqrt{5x^8} =

= 4x^2 \times 3 \sqrt{5x^4 \times 5x^8}

= 12x^2 \sqrt{25x^{4+8}}

= 12x^2 \sqrt{25} \sqrt{x^{12}}

= 12x^2 \times 5 \times x^6

= 60x^8

6 0
2 years ago
A salesperson earns $450.20 per week plus 15% of her weekly sales. Which of the following describes the sales necessary for the
lapo4ka [179]
First we must construct an equation to model the problem. (In this case we will use an inequality instead) This is what I came up with:
         450.20+0.15s>=600.10

This equation shows how if her base earnings ($450.20) are added to 15% of her sales, represented by s, then the total will be greater than or equal to $600.10
Next, we simply solve for s. (steps shown below)

1) 450.20+0.15s>=600.10 (simply restating the inequality)
2) 0.15s>=149.90 (here I isolated the variable)
3)0.15s/0.15>=149.90/0.15 (Finally I solve for s by dividing both sides by 0.15, this will isolate s on the left and leave the answer on the right)
4) s>=999.33... (here I found the total sales the salesperson would need to reach his/her goal of earning a minimum of $600.10; the 3's after the decimal are repeating so in the next step I will round up to the nearest hundredth (b/c this is what money is rounded to and if I round down he/she would make less than her goal. This means i must round up.))
5) s>=999.34 (simple rounding; once again I rounded up b/c rounding down would slightly bring the total earnings to less than the goal)

<u>Therefore, the salesperson would need his/her sales to be $999.34 in order for his/her total earnings for the week to be at least $600.10</u> (greater than or equal to $600.10)

<u>Hope this helped!</u>
4 0
3 years ago
Donnie has18 melons. Each melon weighs 3 pounds. How many pounds of melons does Donnie have in all? A. 6 pounds B. 11 pounds C.
pentagon [3]
18 x 3 = 54. So the correct answer is D. 54 pounds.
4 0
3 years ago
⭐ Question 3
mash [69]

Answer:

1/10

Step-by-step explanation:

Because there are 10 markers and only one is yellow. so you have a one in ten chance to pull a yellow marker.

<em>Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Also remember to rate answers to help other students, While leaving thanks to answers that help you. Have a great day!</em>

8 0
2 years ago
Read 2 more answers
Change this into decimal step by step plz
nika2105 [10]

Answer:

2.6

Step-by-step explanation:

3/5 ---> ?/100

100/5 ---> 20

3       20         60

--  x           =   -------

5       20         100

60/100 = 6/10

6/10 as a decimal is 0.6

2 + 0.6

= 2.6

<h2>Hope this helps!!</h2>
7 0
3 years ago
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