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Feliz [49]
3 years ago
11

Grade 9 mathematics please help asap. Thank you so much!!!

Mathematics
1 answer:
elena55 [62]3 years ago
8 0
If the side of square P is x and the side of square Q is y, we have x+y=26. In addition, 3*the perimeter of P+8*4y=3*4x+32y=12x+32y=492.

We have 
x+y=26
12x+32y=492

Multiplying the first equation by -12 and adding it to the second, we get 
20y=180 and dividing by 20 we get y=9. Plugging it into the first equation, we get 26-9=17=x. Since the area of square P is x^2 and Q is y^2,
x^2+y^2=19^2+7^2=410=the sum of the squares
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For a recipe, Will needs 5/8 of milk. he only has 1/3 cup milk . how much more does he need?
ludmilkaskok [199]

Answer:

He needs 7/24 cup of milk

Step-by-step explanation:

If he needs 5/8 cup of milk and has 1/3 cup, he will need to subtract so see how much more he needs.

5/8 - 1/3

We need to get a common denominator of 24

5/8 * 3/3   - 1/3 *8/8

15/24 - 8/24

7/24

He needs 7/24 cup of milk

3 0
3 years ago
Seventh graders collected some gold sand on a class field trip.
satela [25.4K]

Answer:

Class 7A collected 4.8 ounces of pure gold.

Step-by-step explanation:

<u>Key skills required are: Percentages, Multiplication</u>

<u />

  1. We only need the information about Class 7A. They collected 40 oz that contains 12% gold.
  2. In other words, this means that 12% of that 40 oz gold sand is pure gold.

Here we have to do 12% x 40 to find the number of oz of pure gold. We first have to convert 12% into a decimal. Divide it by a 100 (or move the decimal point 2 places to the left) and you will get 0.12.

<em>Do 0.12 x 40 and you will get 4.8</em>

Therefore, there are 4.8 oz of pure gold in Class 7A's gold sand

3 0
3 years ago
Factoring Polynomials<br> V squared+5v+6
Len [333]

Answer:

(V+3)(V+2)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
3. Maria signed up for a lawn service. She was
PIT_PIT [208]

Step-by-step explanation:

525 - 75 = 450

18 for ever one

equals to 450

18x = 450

450÷18 = x

450 ÷ 18 is

comment and i will check

please put brainest

6 0
3 years ago
In a hospital ward, there are 12 nurses and 4 doctors. 3 of the nurses and 2 of the doctors are male. If a person is randomly se
AleksandrR [38]
13/16
Because there are all together there are 16 people, 4 are doctors and 9 are female nurses. So add 9 and 4 are you get 13 since the question is asking for females or doctors.
3 0
3 years ago
Read 2 more answers
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