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goldenfox [79]
3 years ago
11

If equation two is multiplied by -2 and then the equations are added, the result is

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
8 0

Answer: Yes, this is true but it can be a different answer.

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Solve for y:<br> 4x + 5y = 12
Kryger [21]

Answer:

y = (12 - 4x)/5

Step-by-step explanation:

5y = 12 - 4x

y = 12/5 - 4x/5

y = (12 - 4x)/5

3 0
2 years ago
Find the first six terms of the sequence.<br> a1 = -7, an = 4 • an-1
Juli2301 [7.4K]

Answer:

- 7, - 28, - 112, - 448, - 1792, - 7168

Step-by-step explanation:

Using the recursive formula and a₁ = - 7 , then

a₂ = 4a₁ = 4 (- 7) = - 28

a₃ = 4a₂ = 4(- 28) = - 112

a₄ = 4a₃ = 4(- 112) = - 448

a₅ = 4a₄ = 4(- 448) = - 1792

a₆ = 4a₅ = 4(- 1792) = - 7168

6 0
3 years ago
Pls help me^^
natita [175]

Answer:

24 ounces of butter

21 ounces of sugar

30 ounces of flour

12 eggs

3 teaspoon of baking powder

Step-by-step explanation:

Simple. All you had to do was multiply each quantity by 3, because you needed 3 lots of each.

Hope this helps.

6 0
3 years ago
Read 2 more answers
Answer the following.
nexus9112 [7]

Step-by-step explanation:

1075 students were asked how close they live to the college. The table shows the results below with some values missing. Enter the correct values in the boxes remembering to use the % symbol where necessary.

<u>20 to 25: </u>given 20%

20% of 1,075 = 215

<u>15 to 19: </u>given 12%

12% of 1,075 = 129

<u>10 to 14: </u>given 516 students

(516/1,075)*100 = 48%

<u>5 to 9: </u>given 162 students

(162/1,075)*100 = 15.07%

<u>< 5: </u>given 53 students

(53/1,075)*100 = 4.93%

3 0
1 year ago
A clothing store has a section of jeans on sale. There is a 30% chance of picking a pair with a 30-inch inseam; a 25% chance of
Andrej [43]

The expected value of the inseam length of the jeans is found as

30% of 30+ 25% of 32+ 10% of 34+ 10% of 36 + 10% of 38 + 15% of 40

= \frac{30}{100}\times30 +\frac{25}{100}\times32+ \frac{10}{100}\times34+ \frac{10}{100}\times36 +\frac{10}{100}\times38+ \frac{15}{100}\times40

= 9+8+3.4+3.6+3.8+6=33.8

Hence, the third option 33.8 is the correct expected value.

3 0
3 years ago
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