How do you solve 28-2.2x=11.6x-54.8??

Answers

Answer 1

Answer: 28 - 2.2x = 11.6x - 54.8
28 + 54.8 = 11.6x + 2.2x
82.8 = 13.8x
82.8 / 13.8 = x
6 = x
or x = 6

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70 is 30% of what number?

Answers

Answer: 233.33.

Step-by-step explanation: Consider marking this answer as brainliest if it helped you out.

Answer:

Step-by-step explanation:

233.33

Hope this helps =)

What is the reciprocal of 4.5? And after I get the reciprocal how did they get 2 over 9 for the answer?

Answers

so 4.5 is equal to 4 and 1/2
u can convert that to 9/2
then to get the reciprocal you flip the denominator and numerator
this gives u 2/9

Baseball cards come on packages of 8 and 12. Brighton bought some of each type for a total of 72 baseball cards. How many of each package did he buy?

Answers

4 packs of twelve cards and 3 packs of eight .

3 packages of 8 and 4 packages of 12

12 x 4 = 48
8 x 3 = 24

48 + 24 = 72 Cards

Which shows 522 − 482 being evaluated using the difference of perfect squares method?522 − 482 = (2704 + 2304)(2704 − 2304) = 2,003,200

522 − 482 = (52 + 48)(52 − 48) = (100)(4) = 400

522 − 482 = 2704 − 2304 = 400

522 − 482 = (52 − 48)2 = (4)2 = 16

Answers

52² − 48² = (2704 + 2304)(2704 − 2304) = 2,003,200

52² − 48² = (52 + 48)(52 − 48) = 100 * 4 = 400
a² - b² = (a +b)*(a-b)

52² − 48² = 2704 − 2304 = 400

52² − 48² = (52 − 48)² = (4)² = 16

The optionsecond 52² − 48² = (52 + 48)(52 − 48) = (100)(4) = 400 is the correct.

What is an arithmetic operation?

It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

We know,

a² - b² = (a + b)(a - b)

We have:

= 52² − 48²

After using the above identity, we get:

= (52 + 48)(52 - 48)

= (100)(4)

= 400

Thus, the optionsecond 52² − 48² = (52 + 48)(52 − 48) = (100)(4) = 400 is the correct.

Learn more about the arithmetic operation here:

brainly.com/question/20595275

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Solve each question for X , y=-9+x^2

Answers

so basically you want to isolate only one of the variable on one side so
y=-9+x^2
add 9 to both sides
y+9=x^2
square root both sides
$√(y+9)=x$

x= $√(y+9)$

y = -9 + x^2
y + 9 = -9 + 9 + x^2
y + 9 = x^2
√y+9 = √x^2
√y+9 = x
x = √y+9

√ is the square root symbol

Simplify (-3)⁴x(7)⁴

Answers

Answer:

194481

Step-by-step explanation:

(-3)⁴ × (7)⁴

= 81 × 2401

= 194481

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For two functions, m(x) and p(x), a statement is made that m(x) = p(x) at x = 7. What is definitely true about x = 7? (2 points)