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3 years ago

Can someone help me with this problem? am i right? this is 7th grade btw.

Mathematics

1 answer:

labwork [276]3 years ago

6 0

I think you are right, it is (1,1).

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Find x. A. 6√6 B. 18 C. 9√2 D. 24√3

evablogger [386]

Answer:

Step-by-step explanation:

3 0

2 years ago

X + 2y = 10

Crazy boy [7]

Answer:

(-12,11)

Step-by-step explanation:

x + 2y = 10

3x + 4y = 8

(-2)x + (-2)2y = (-2)10

3x + 4y = 8

-2x - 4y = -20

3x + 4y = 8

Add to eliminate:

x = -12

Substitute x to solve y:

x + 2y = 10

(-12) + 2y = 10

-12 + 2y = 10

2y = 10 + 12

2y = 22

y = 22 ÷ 2

y = 11

Check:

x + 2y = 10

(-12) + 2(11) = 10

-12 + 22 = 10

10 = 10

8 0

2 years ago

Read 2 more answers

Sal Boxer decided to divide a gift of $5000 into two different accounts. He placed $1000 in an account that earns an annual simp

mash [69]

Answer:

THE TOTAL INTEREST EARNED = $ 385

Step-by-step explanation:

Interest earned by sal from first account can be calculated as follows :

Principal value (P) = $1000 .

interest rate (R) = 7.5 % .

Time period (T) = 1 year .

$\textbf{S . I} =\frac{\texbf{P * R * T}}{\textbf{100}}$

$= \frac{1000 * 7.5 * 1}{100}$

= $ 75 .

SIMILARLY , we can find the intrest earned by rest amount.

Principal value (P) = $5000 - $ 1000 = $ 4000 .

Interest rate (R) = 7.75 % .

Time period (T) = 1 year .

$S . I = \frac{4000 * 7.75 * 1}{100}$

= $ 310 .

THE TOTAL INTEREST EARNED = $ 75 + $ 310

= $ 385

4 0

3 years ago

(x+7)(2x+1)=7 solve by using quadratic formula

Olenka [21]

I believe it is x= 7, -2

8 0

3 years ago

Solve the equation. 89=x+13(7)

marissa [1.9K]

Answer is x=-2 hope that helps

5 0

3 years ago

Read 2 more answers