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vodomira [7]
3 years ago
7

Simplify the following as much as possible: 6a – 3a + 9a

Mathematics
2 answers:
IRISSAK [1]3 years ago
7 0
6a - 3a + 9a= 12a yes u must makesure that u must have to do the working ive alrdy wrote it up there so u cn just follow okay thanks
NikAS [45]3 years ago
6 0

Answer: 12a

Step-by-step explanation:

All we need to do is combine the like terms. Which all of them have the common variable a so we can add and subtract them together.

6a - 3a + 9a

Working left to right according to pemdas we can subtract first.

3a + 9a

Now add.

12a

That is as far as we can simplify.

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Pls help im new so pls can u help me <br><br> Factorise<br> x^2+18x+80
sergejj [24]

Answer:

(x + 10)(x + 8)

Step-by-step explanation:

Given

x² + 18x + 80

Consider the factors of the constant term (+ 80) which sum to give the coefficient of the x- term (+ 18)

The factors are + 10 and + 8 , since

10 × 8 = + 80 and 10 + 8 = + 18 , then

x² + 18x + 80 = (x + 10)(x + 8) ← in factored form

5 0
3 years ago
A coupon subtracts $17.95 from the price p of a pair of headphones. You pay $71.80 for the headphones after using the coupon. Wr
omeli [17]
71.80 - 17.95 = 53.85
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3 years ago
a car uses 9.5 L petrol per 100km a) determine the rate in km/L b) how far can the car travel with 47,5L petrol c) how many litr
Lana71 [14]

Step-by-step explanation:

a) determine the rate in km/L

==> 9.5 L/100km = 10.526316 km/L

b) how far can the car travel with 475L petrol

==> 0.210526315789473km/l

c) how many litres of petrol do they need to travel 350 km

==>Liters per km (l/km)2.86×10-3

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2 years ago
Find an equation of the line through (4,6) and parallel to y=3x+7
Alex

Answer: y = 3x - 6

Step-by-step explanation: A line that is parallel to another line must have the same slope, so you already have y = 3x + b. To find b, use the point that they give. b is the y-intercept, so just subtract 3(x) from the y coordinate of the point, where x is the x-coordinate of the given point.

3 0
3 years ago
Compared to the tone of Passage 2, the tone of
harkovskaia [24]

The correct answer is option e) tempered.

Compared to the tone of Passage 2, the tone of Passage 1 is more tempered.

Passage 1 discusses recycling as a socio-cultural phenomena, whereas passage 2 is a recycling critique.

Therefore, the tone of passage 1 is a little more upbeat than that of passage 2.

As a result, we may determine that tempered is the most appropriate tone for this passage 1.

Learn more about ("Angel") Deverell

brainly.com/question/24852631

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2 years ago
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