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Vsevolod [243]
4 years ago
7

I need help ASAP thank you

Mathematics
1 answer:
lbvjy [14]4 years ago
4 0

According to the first scale, 2 red balls = 1 star.

According to the second scale, 2 triangles = 1 star

So,

1 triangle = 1 red ball

1 star = 2 red balls

1 red ball = 1 red ball

Therefore, 2 + 1 + 1 = 4 red balls

The last scale needs 4 red balls

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Is the point (3, 11) a solution for the linear equation 1/3x + y = 12? Explain.
PtichkaEL [24]

9514 1404 393

Answer:

  yes

Step-by-step explanation:

The point is on the line.

The coordinate values satisfy the equation:

  1/3x + y = 12

  1/3(3) + 11 = 12 . . . substitute for x and y

  1 + 11 = 12 . . . . . . . true

Any point that satisfies the equation is a solution. (3, 11) is a solution.

5 0
3 years ago
3. Wilf buys an item from the list below. He pays with a £1 coin and in his change he
Vika [28.1K]

Answer:

The answer is D because the sticker pack is what the transaction is to 1 euro.

Step-by-step explanation:

hope this helped!

6 0
2 years ago
What’s the definition of percent equation
geniusboy [140]
I think the asnwet is 2 also
7 0
3 years ago
6. Find the area of a triangle with sides a = 5, b = 8, and c = 11.​
Colt1911 [192]
<h2>20</h2>

Hi, I’m Lena and I’ll be here to answer your question with a good-quality answer. If there's something I can improve, let me know! ツ

♡ Let’s look at the main important things that will lead you in the correct path.

♥ <em>a </em>+<em> b</em> usually = <em>c!</em> Unless the book asks you to find a specific variable, you will most likely be looking for <em>c</em>.

♥ <em>A</em> = <em>bh</em>/2! This is the formula for the area of a triangle. You can also read this as A = base * height/2. The good thing about this formula is you don't need a picture. You can write it as <em>a</em> * b<em> </em>or <em>b</em> * <em>a!</em>

<em />

♡ Now, let's solve!

♥ Plug the numbers into the formula: 5*8/2.

♥ Solve! In this case, we do not need c: 40/2 = 20.

Your answer should be 20! Please do not hesitate to ask me any questions.

3 0
3 years ago
What is the value of x in the equation Negative two-fifths x minus 2 = 18?
lara [203]
Answer: 50

Explanation: 2/5x - 2 = 18

Divide the fraction to make a decimal
2 ÷ 5=0.4

0.4x-2=18

0.4x=20 Add 2 to 18

20 ÷ 0.4=x Divide 20 by 0.4 to get x

x=50


6 0
3 years ago
Read 2 more answers
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