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galben [10]
3 years ago
14

Help plz!!!! Fill in the blank so it's a perfect square trinomial.

Mathematics
2 answers:
Setler [38]3 years ago
7 0

Answer:

25x^2 + 60x + 36

60x in the middle makes a perfect square trinomial

Step-by-step explanation:

Oksana_A [137]3 years ago
4 0

Answer:

hi

Step-by-step explanation:

60 is the correct ans

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Brown rice costs $2 per pound, and beans cost $1.60 per pound. Lin has $10 to spend on these items to make a large meal of beans
Valentin [98]

Answer:

1.   2r+1.6b=10

2.  r=5-0.8b

3.  b=6.25-1.25r

Step-by-step explanation:

<h3> The complete exercise is: "Brown rice costs $2 per pound, and beans cost $1.60 per pound. Lin has $10 to spend on these items to make a large meal of beans and rice for a potluck dinner. Let b be the number of pounds of beans Lin buys and r be the number of pounds of rice she buys when she spends all her money on this meal.</h3><h3>1. Write an equation relating the two variables.</h3><h3>2. Rearrange the equation so "b" is the independent variable.</h3><h3>3. Rearrange the equation so "r" is the independent variable."</h3><h3 />

1. According to the information exercise given in the exercise, the cost per pounds of brown rice is $2. Since "r" represents the number of pounds of rice Lin buys, the total cost of the brown rice she buys can be represented with this expression:

2r

The beans cost $1.60 per pound. Since "b" represents the number of pounds of beans Lin buys, the total cost of beans she buys can be represented as:

1.6b

Knowing that she spends $10, you can write the following equation:

2r+1.6b=10

2. In order to rearrange the equation so "b" is the independent variable, you need to solve for "r":

2r+1.6b=10\\\\2r=10-1.6b\\\\r=\frac{10-1.6b}{2} \\\\r=5-0.8b

3. To rearrange the equation so "r" is the independent variable, you must solve for "b". You get:

2r+1.6b=10\\\\1.6b=10-2r\\\\b=\frac{10-2r}{1.6}\\\\b=6.25-1.25r

7 0
3 years ago
Solve x2 – 8x = 3 by completing the square. Which is the solution set of the equation?
RoseWind [281]
<span><span>1. <span>x =(8-√76)/2=4-√ 19 = -0.359 </span> </span><span> <span>
2. x =(8+√76)/2=4+√ 19 = 8.359 </span> </span></span>
5 0
3 years ago
Read 2 more answers
Write an helpful equation for 9% of 70
sweet [91]

Answer:

0.09(x)=70

Step-by-step explanation:

6 0
3 years ago
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Solve for x 1/12=4x/3+5/3(x-7/4)
ziro4ka [17]

Answer:

x=1

Step-by-step explanation:

1) multiply the numbers

2) combine multiplied terms into a single fraction

3) distribute

4) combine fractions with common denominator

5) combine like terms

6) multiply all terms by the same value to eliminate fraction denominators

7) cancel multiplied terms that are in the denominator

8) multiply the numbers

9) add 35/4 to both sides of the equation

10) simplify

( add the numbers twice)

11) divide both sides of the equation by the same term

12) simplify

(divide the numbers, cancel terms that are in both the numerator and denominator, and last but not least move the variable to the left)

well and behold your answer is x=1

6 0
3 years ago
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