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2 years ago

6

Carla use two and three cups and one and three eight how much does she use in all

1 answer:

alekssr [168]2 years ago

8 0

2 and 1/24 cups hope this helps

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Reason Abstractly Find two integers whose sum is -7 and whose

Travka [436]

Step-by-step explanation:

Let's represent the two integers with the variables $x$ and $y$ .

From the problem statement, we can create the following two equations:

$x + y = -7$

$xy = 12$

With the first equation, we can subtract $y$ from both sides to isolate the $x$ variable to the left-hand side:

$x = -7 - y$

Now that we have a value for $x$ , we can plug it into the second equation and solve for $y$ :

$(-7 - y)y = 12$

$-7y - y^{2} = 12$

Now, let's move everything to one side of the equation:

$y^{2} + 7y + 12 = 0$

Factoring this quadratic will give us two values for $y$ :

$(y + 4)(y + 3) = 0$

$y = -3, -4$

Since we now know $y = -3, -4$ , we can plug this back into either of the original equations to get a value for $x$ , which will be $x = -4, -3$ .

So the two numbers that sum to $-7$ and have a product of $12$ are $-3, -4$ .

7 0

3 years ago

Read 2 more answers

Mulitply (x + 5)(2x - 6)

DENIUS [597]

The answer is 2x²+4x-30

6 0

3 years ago

Maya says that value of the 6 in 0.006 is 1/10 of the value of the 6 in 0.6 . Is she correct? Explain

Liono4ka [1.6K]

Answer:

Maya is incorrect

Step-by-step explanation:

1/10 of 0.6=

0.1*0.6=0.06

0.06≠0.006

Maya is incorrect

4 0

2 years ago

Read 2 more answers

Use the matrix method to solve the system of equations 2 x + 4 y = 8 and 6 x + 3 y = -3. The resulting matrix is:

attashe74 [19]

Answer:

$x=-2,y=3$

Step-by-step explanation:

The given system of equations is

$2x+4y=8$

and

$6x+3y=-3$

The augmented matrix is

$\left[\begin{array}{ccc}2&4&|8\\6&3&|-3\end{array}\right]$

$\frac{1}{2}R_1\to R_1$

$\left[\begin{array}{ccc}1&2&|4\\6&3&|-3\end{array}\right]$

$-6R_1+R_2\to R_2$

$\left[\begin{array}{ccc}1&2&|4\\0&-9&|-27\end{array}\right]$

$-\frac{1}{9}R_2\to R_2$

$\left[\begin{array}{ccc}1&2&|4\\0&1&|3\end{array}\right]$

$-2R_2+R_1\to R_1$

$\left[\begin{array}{ccc}1&0&|-2\\0&1&|3\end{array}\right]$

Hence $x=-2,y=3$

3 0

3 years ago

Find n and r 10 pointsss

Leya [2.2K]

Answer/Step-by-step explanation:

The two triangles we have in the diagram shar the same vertex. They are both similar triangles. Therefore, their side lengths would be proportional.

This means:

$\frac{9.8}{4.3} = \frac{r}{5.1} = \frac{n}{2.7}$

Solve for variable r and n respectively.

Thus:

$\frac{9.8}{4.3} = \frac{r}{5.1}$

Multiply both besides by 5.1

$\frac{9.8}{4.3} \times 5.1 = \frac{r}{5.1} \times 5.1$

$\frac{9.8 \times 5.1}{4.3} = r$

11.6 = r (nearest tenth)

Also,

$\frac{9.8}{4.3} = \frac{n}{2.7}$

Multiply both besides by 2.7

$\frac{9.8}{4.3} \times 2.7 = \frac{n}{5.1} \times 2.7$

$\frac{9.8 \times 2.7}{4.3} = r$

6.2 = n (nearest tenth)

3 0

3 years ago