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Ludmilka [50]
2 years ago
10

Find the sum -4a-(-9a)

Mathematics
1 answer:
-Dominant- [34]2 years ago
7 0

Answer:

5a I believe

Tell me if I'm right

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Question number 1 You are comparing the costs of producing jewelry at two different manufacturers. Company 1 charges $3.25 per p
Assoli18 [71]

The value of x at equal total cost is 266.67

Here, we want to solve the equation to get the x-value that shows the total costs for the two companies are equal

We proceed as follows;

\begin{gathered} 3.25x\text{ + 400 = 2.50x + 600} \\ 3.25x-2.50x\text{ = 600-400} \\  \\ 0.75x\text{ = 200} \\  \\ x\text{ = }\frac{200}{0.75} \\ x\text{ = 266.67} \end{gathered}

4 0
11 months ago
image Find the area of the kite with diagonals a = 12 and b = 9. Question 5 options: A) 108 B) 72 C) 54 D) 30
FromTheMoon [43]

Answer:

108

Step-by-step explanation:

Because the area formula is a*b and 12*9 is 180

So the answer is 180 which is A

I hope this helps :)

3 0
3 years ago
Help show work pls for brisnly
Deffense [45]

Answer:

6

Step-by-step explanation:

Ok, so all we have to do is multiply 8 * 3/4, because each child needs 3/4 of the sandwich, and there are 8 of them. The easiest (My opinion) way to do this is by turning 8 into a fraction. Turning whole numbers into fractions is really simple, just slap a /1 under them to make them a fraction. And so, our fraction is 8/1. Now, all we have to do is multiply the top part of the fraction, and then the bottom part of the fraction. So, 8 * 3 = 24, and 1 * 4 = 4. So, just put 24/4 as an answer. But, wait! We have to simplify it! 24 divided by 4 is 6, so 6 is our final answer.

8 0
3 years ago
I need help agen plz my teachers are still asking me to stay
luda_lava [24]

Answer:

y = 7x^2  + 42x + 64

Step-by-step explanation:

... i know standard form, you just distribute the exponent to the parenthesis amounts and put it in order, hope it helps

5 0
3 years ago
Read 2 more answers
Need help on this question!
Anestetic [448]

Answer:

1 N 3

Step-by-step explanation:

8 0
3 years ago
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