PLSSS HELP I WILL MARK U BRAINLEST!!!

Solve for x first.

5x - 9 + 2x + 10 = 78

7x + 1 = 78

7x = 78 - 1

7x = 77/7

x = 11

Then substitute the value of x to find DE.

DE = 5x - 9

5(11) - 9

55 - 9

DE = 46

Therefore, the value of DE is 46

DF= 78, DE = 5x -9, EF = 2x + 10, find DE.

First, solve for the value of x.

Then, plug and substitute the value of x to find the DE.

Answer:

1≤x<10, meaning x must be greater than or equal to 1 and less than 10

Step-by-step explanation:

Answer:

[tex]\boxed {\boxed {\sf ( - \frac{9}{2}, -1) \ or \ (-4.5, -1) }}[/tex]

Step-by-step explanation:

We are asked to find the midpoint of a line segment. When you find the midpoint, you essentially find the average of the x-coordinates and the y-coordinates. The midpoint formula is:

[tex](\frac {x_2+x_1)}{2}, \frac{y_2+y_1}{2})[/tex]

In this formula, (x₁, y₁) and (x₂, y₂) are the endpoints of the line segment. we are given the endpoints R (-6, 1) and S (-3, -3). If we match the value and the corresponding variable we see that:

Substitute the values into the formula.

[tex]( \frac{-3 + -6}{2} , \frac{ 1+ -3}{2} )[/tex]

Solve the numerators.

[tex](\frac {-9}{2}, \frac {-2}{2})[/tex]

Divide.

[tex]( - \frac {9}{2}, -1})[/tex]

The fraction can also be written as a decimal.

[tex](-4.5 , -1)[/tex]

The midpoint of the line segment RS is (-9/2, -1) or (-4.5, -1).

Answer: multiply 750 and 12

Divide that by the 14%

Step-by-step explanation:

Answer:

Ray EA & Ray EC

(last one)

Step-by-step explanation:

Opposite rays make a 180 degree line.

For naming it, always start with the endpoint and then to the arrow.

Step-by-step explanation:

Answer:

5/4 or 1 1/4 cup of oil

Step-by-step explanation:

Let's make a ratio. 1/4:10. We need to multiply 10 by 5 to get 50 cookies and do the same on the other side of the ratio. 1/4x5=5/4 or 1 1/4 and 10x5 is 50. So our final ratio would be 5/4:50. Hope this helped.

Answer:

10.1

Step-by-step explanation:

I just put in a calculator and got the answer.

Answer:

-18

Step-by-step explanation:

9 x -2 = -18

You multiply like normal and then for the answer just add a neg sign if there is an ODD amount of neg signs in the overall problem and then add no neg sigh if there are an EVEN number of neg signs (they cancel out),...

Hope it helps,... Chow,...!

Answer:3

Step-by-step explanation: 23.09 * 0.13 =3 rounded up

Answer: Hello There!................

x=-3.5

Step-by-step explanation:

Mark me brainest please. Hope this helps. Anna ♥

Answer:

$5

Step-by-step explanation:

First, we need to find the total amount he spent on the passes.

We just need to multiply the number of passes by the price of each pass.

19 x 1.4 = 26.6

This means he spent $26.6 on the passes.

Now, we can find out how much he spent on the discount card.

Just subtract his total spending amount by the amount he spent on passes.

31.6 - 26.6 = 5

He spent $5 on the discount card.

Answer:

B. 63 x 10,000 = 630,000 is the only true equation

Step-by-step explanation:

Trial and error

Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. The correct option is B.

Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. For example, 3 × 4 means 3 is added to itself 4 times, and vice versa for the other number.

From the given equation that is true are,

A. 63 x 103 = 63,000

If we multiply 63 and 103 the product will be 6,489. Since the two sides of the equation are not true, therefore, the given equation is false.

B. 63 x 10,000 = 630,000

If we multiply 63 and 10,000 the product will be 630,000. Since the two sides of the equation are true, therefore, the given equation is true.

C. 63 x 102 = 630

If we multiply 63 and 102 the product will be 6,426. Since the two sides of the equation are not true, therefore, the given equation is false.

D. 63 x 1,000 = 6,300

If we multiply 63 and 1,000 the product will be 63,000. Since the two sides of the equation are not true, therefore, the given equation is false.

E. 63 x 105 = 6,300,000

If we multiply 63 and 105 the product will be 6,615. Since the two sides of the equation are not true, therefore, the given equation is false.

Hence, the correct option is B.

Learn more about Multiplication here:

https://brainly.com/question/14059007

#SPJ2

Answer:

S-8=9

or, s= 9+8

or, S= 17

Because 8 is in - so to become it's positive sign we should bring it to right hand side

Step-by-step explanation:

The ratio of cats to dogs at a pet store is 4:5. It means that if there are 4 cats in the store then there are 5 dogs, if there are 8 cats(4×2) there then there will be 10 dogs(5×2).

The number of cats is 16 if the ratio of cats to dogs is 4:5 if there are 20 dogs.

It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.

The complete question is:

The ratio of cats to dogs is 4;5 if there are 20 dogs. How many cats are there?

It is given that:

The ratio of cats to dogs at a pet store is 4:5

Let 4x be the cats and 5x be the dogs

5x = 20

The above equation is a linear equation in one variable.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

x = 20/5

x = 4

Number of cats = 4x

Plug x = 4 in the above expression:

= 4(4)

= 16

Thus, the number of cats is 16 if the ratio of cats to dogs is 4:5 if there are 20 dogs.

Learn more about the ratio here:

brainly.com/question/13419413

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Answer:

The second and third boxes. m=-10/4 & -5/2 & the last one

Step-by-step explanation:

We know the answer is negative so we need to add a larger number to get the 3/4 to the negatives. 3-10= -7, so -10/4 and -5/2 is equal to -10/4

Answer:

The second one m= -10/4, the third one m= -5/2, and the last one -5/4+m= -15/4

Step-by-step explanation:

You find m by solving -7/4 - 3/4 = m. Thats the second option -10/4.

When you simplify, you get -5/2, the third option.

Finally, -5/4+m= -15/4 is equal to -15/4 -(-5/4)=m. Subract and you get -10/4. That makes the original equation equal to the last option.

Answer:

3, -1

Step-by-step explanation:

because that is the point that is at the center :)

Step-by-step explanation:

[tex]thank \: you[/tex]

9514 1404 393

Answer:

  C. whole number

Step-by-step explanation:

The set of whole numbers is the set of non-negative integers. A negative integer is not a whole number.

Answer:

Step-by-step explanation:

ten students are chosen from a statistics class of 300 let x be the number who got an a in the class

Answer:Complementary angles are two angles whose sum is 90 degrees.

Let x represent one of the angles.

The other angle which is 84.2 degrees less would be x - 84.2.

Using this, we can write an equation.

x + (x-84.2) = 90.

Combine like terms:   2x - 84.2 = 90

Add 84.2 to both sides of the equation.

2x = 174.2

Divide by 2:  x = 87.1  

and x - 84.2 would equal 2.9.       to check: does  87.1 + 2.9 = 90?  yes.

Step-by-step explanation: Thats as close as its gonna it i think

Answer:

k calculate it how u see it

Answer:-6 and -1

Step-by-step explanation:

Answer:

Step-by-step explanation:

413

Answer:

5 shirt

Step-by-step explanation:

30.60÷6.12=5

So, 5 shirts are returned.