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jenyasd209 [6]
2 years ago
10

Which statement is true about the polynomial 3x2y2 − 5xy2 − 3x2y2 + 2x2 after it has been fully simplified?

Mathematics
1 answer:
lorasvet [3.4K]2 years ago
7 0

Answer: Varies

Step-by-step explanation:

There would still be some Xs and Ys.

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I’m confused on what to do next please help
Mekhanik [1.2K]

Answer:

There are 585 adults and children

Step-by-step explanation:

Let the number of adults be a, number of children be c and the number of seniors be a

Amount made per group;

adults; 52 * a = 52a

Children : 26 * c = 26c

Seniors = 20 * s = 20s

Adding all will give 20,490

52a + 20s + 26c = 20 490 ••••(i)

Now let us work with the ratios;

a : s = 6 : 1

a/s = 6/1

a = 6s •••••(ii)

Lastly;

a/c = 4/9

4c = 9a ••••(ii)

We want to get a + c

From the first equation , let’s substitute

52(6s) + 20s + 26c = 20,490

26c = 6.5 (4c)

but 4c = 9a; 6.5(9a)

But a = 6s

So we have; 6.5(9)(6s) = 351s

so we have;

312s + 351s + 20s = 20,490

683s = 20,490

s = 20490/683

s = 30

Recall;

a = 6s = 6 * 30 = 180

4c = 9a

4c = 9 * 180

c = (9 * 180)/4 = 405

So the total number of children and adult is a + c

405 + 180 = 585

3 0
2 years ago
the band knows 45. song. it play 12 songs in the first set, 15 song in the second set, and 11 songs in the last set. if no songs
Dennis_Churaev [7]

Answer:

7 songs

Step-by-step explanation:

12+15+11 is 38

45-38 is 7.

4 0
3 years ago
Read 2 more answers
Is 3/7 and 18/42 equivalent ratios
nignag [31]
Yes they are. if you multiply numerator and denominator of 3/7 by 6, you get 18/42
7 0
2 years ago
Read 2 more answers
You want to save $10,000 to buy a new car You doposit 6500in an account earning 7.5% simple interest. After how long will you ha
Stells [14]

Answer:

After 7.5 years we will have enough money in the account to purchase the car.      

Step-by-step explanation:

Amount needed to be saved = $10000

Principal = $6500

So, Simple Interest = $3500

Rate of Interest = 7.5%

                         = 0.075

Now, Simple Interest = Principal × Rate × Time

⇒ 3500 = 6500 × 0.075 × Time

⇒ 3500 = 487.5 × Time

⇒ Time = 7.18 years ≈ 7.5 years

Hence, after 7.5 years we will have enough money in the account to purchase the car.

Step-by-step explanation:

7 0
3 years ago
Karen earns $8 per hour at her job. She has $300 saved in the bank. She wants to save at least $2,700 to buy a car.
dusya [7]

Answer:

Karen needs $2400 to reach her goal of 2,700

she will need to work for 300 hours

Step-by-step explanation:

5 0
3 years ago
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