3 years ago

The sum of the two numbers is 10 and their difference is 4 . Find the two numbers

Mathematics

1 answer:

Sveta_85 [38]3 years ago

7 0

Three and seven. The answer is three and seven because three plus four is seven. Your welcome

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2. Today Carly’s bank account contains $82. Yesterday she made a withdrawal of $25. What was the bank account balance before Car

cluponka [151]

1. $82+$25=?
2. $107
3. Carly's balance was $107
Will this help?

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3 years ago

HELPPP!!! <br> What is 4^(1) x 4^(2) and please show the steps!!

elena-14-01-66 [18.8K]

${4}^{1} = 4 \\ 4 {}^{2} = 4 \times 4 = 16 \\ \\ {4} + 16 = 20$

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3 years ago

How many adult tickets were sold if each adult ticket sold was $6 and each student ticket was $4.50 and 260 tickets were sold fo

erik [133]

Answer:

Adult tickets sold: 156

Step-by-step explanation:

Adult ticket: x

Student ticket: y

x + y = 260 ===> -6(x + y = 260) ===> -6x -6y = -1560

6x + 4.5y = 1404 ===> 6x + 4.5y = 1404

________________

add the two equations to eliminate a variable: -1.5y = -156

divide by -1.5: y = 104

substitution to find x:

x + y = 260

x + 104 = 260

x = 156

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3 years ago

Rico paid $180 sales tax on his new $2,400 motorcycle. What was the sales tax percentage rate where he bought his motorcycle?

Artemon [7]

Answer:

it is 7.5 rate

Step-by-step explanation:

I used a calculator to get the answer and it is correct.

4 0

2 years ago

What is the discriminant of 3x^2+6x=2

IgorC [24]

$ax^2+bx+c=0\\\\the\ discriminant:\Delta=b^2-4ac\\============================\\\\3x^2+6x=2\ \ \ \ \ |subtract\ 2\ from\ both\ sides\\\\3x^2+6x-2=0\\\\a=3;\ b=6;\ c=-2\\\\\Delta=6^2-4\cdot3\cdot(-2)=36+24=\boxed{60}\leftarrow answer$

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3 years ago