Fred can drink 8 3/4 sodas in 5 minutes at thus rate how many sodas can fred drink in 2mintues

Answers

Answer 1

Answer: He can drink 2/5 of the 8 3/4 sodas.

$(2)/(5) x 8 (3)/(4) = (2)/(5) x (35)/(4)$

The answer is 7/2 or 3 1/2 sodas.

Of course, Fred would be better off is he drank water instead of soda. :-)

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Marie has renters insurance that she must pay twice a year. If each payment is $96, how much money should she set aside each month to cover her renters insurance? $48

Answers

Answer: $16

Step-by-step explanation:

Given: Marie has renters insurance that she must pay twice a year.

The amount of each payment = $96

So, the total payment in the year = $2*96=\$192$

Since, in one year = 12 months

Therefore, the amount of money she should set aside each month to cover her renters insurance= $(192)/(12)=16$

Hence, She should set aside $16 each month to cover her renters insurance.

$96(2 payments) = $192

$192/(12 months) = $16 per month (she should set aside)

How big is 2000 sq.ft in yards?

Answers

200 square feet = 222.2222 square yards.

There are three feet in a yard and nine square feet in a square yard. Divide 2000 by 3 and then divide by 3 again to get 222.222 square yards.

Write 0.22222222222222222..... as a fraction in simplest form.

Answers

Answer:

.2 Repeating

Step-by-step explanation:

I will give you the crown (brainlist) and 5 stars! These are 2 DIFFERENT questions.

Answers

Answer:

number 1 the answer is B

The answers are A & B

Can you please answer if you know it?
Thank you soooo much!!!!

Answers

the answer is b 3:00

2 sticks=3 lolipops

1 stick=1.5$. so 1.50$ is left

1 lollipop=1$. so 2$ r left.

Solve the following system using a matrix.

7a - b = -1
-4a - 2b = -2

Answers

Answer:

a = 0, b = 1

Step-by-step explanation:

Given system equation is,

7a - b = -1

-4a - 2b = -2

Since, the matrix form of this system of equation is,

$\begin{bmatrix} 7& -1\n -4 & -2\end{bmatrix}\begin{bmatrix}a\nb\end{bmatrix}=\begin{bmatrix}-1\n -2\end{bmatrix}$

Let,

$A=\begin{bmatrix} 7& -1\n -4 & -2\end{bmatrix}$

$X=\begin{bmatrix}a\n b\end{bmatrix}$

$B=\begin{bmatrix}-1\n -2\end{bmatrix}$

$\because AX = B\implies X = A^(-1)B$

$adj(A) = \begin{bmatrix} -2& 1\n4& 7\end{bmatrix}$

Also,

|A| = -18

$\implies A^(-1)=-(1)/(18)\begin{bmatrix} -2& 1\n4& 7\end{bmatrix}$

$\implies X = -(1)/(18)\begin{bmatrix} -2& 1\n4& 7\end{bmatrix}.\begin{bmatrix}-1\n -2\end{bmatrix}$

$X=-(1)/(18)\begin{bmatrix}2-2\n -4-14\end{bmatrix}$

$X=-(1)/(18)\begin{bmatrix}0\n -18\end{bmatrix}$

$X=\begin{bmatrix}0\n 1\end{bmatrix}$

$\implies \begin{bmatrix}a\n b\end{bmatrix}=\begin{bmatrix}0\n 1\end{bmatrix}$

By comparing,

a = 0, b = 1

1. a=-1+b/7 is the right answer. First you had to add by b from both sides of equation, and it gave us, $7a-b+b=-1+b$ . And then simplify, and it gave us, $7a=-1+b$ . Divide by 7 from both sides of equation, and it gave us, $(7a)/(7)=-(1)/(7)+ (b)/(7)$ . Finally simplify, and it gave us the answer is a=-1+b/7 is the right answer.

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2. a=-b-1/2 is the right answer. First you had to add by 2b from both sides of equation, and it gave us, $-4a-2b+2b=-2+2b$ . And then simplify, and it gave us, $-4a=-2+2b$ . Next you can also divide by -4 from both sides of equation, and it gave us, $(-4a)/(-4)=-(2)/(-4)+(2b)/(-4)$ . Finally simplify, and it gave us the answer is a=-b-1/2 is the right answer. Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie

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