Mathematics High School

Find the missing number in the following equation.
k x 78 = 117

k = 1.5

k = 195

k = 39

Answers

Answer 1

The answer is 1.5 because if you divide 117 by 78 you’ll get exactly that ;)

Answer 2

Answer:

k=1.5

Step-by-step explanation:

[tex]k = 117 \div 78 = 1.5 [/tex]

Related Questions

Events A and B are disjointed. P(A) = 3/10; P(B) =2/5 . Find P(A or B). 1/3 7/10 1/10 9/10

Answers

Answer:

7/10

Step-by-step explanation:

Given

P(A) = 3/10P(B) = 2/5

To find

P(A or B)

Solution

P(A or B) = P(A) + P(B)P(A or B) = 3/10 + 2/5 = 3/10 + 4/10 = 7/10

Answer:

7/10

Step-by-step explanation:

Determine whether the ordered pair (-5,36) is a solution to the equation 2x- y/2 = -8

Answers

No.
An order pair is in the format of (x,y). Therefore, in the order pair (2,4), 2 is the x and 4 is the y. When you plug these numbers into the equations you don’t get equal answers:

4(2) = 4 - (4)
8 ≠ 0

3(2) = 26 + 5(4)
6 ≠ 46

In a survey of 1,800 people who owned a certain type of car, 990 said they would buy that type of car again. What percent of the people surveyed were satisfied with the car?

Answers

Answer:

55%

Step-by-step explanation:

Instantaneous vs Average Rate of change
PLEASE AND THANKSSS:))

Answers

One is average 2 is average 3 is instantaneous 4 is average 5 is average 6is instantaneous

Solve 9(8x + 5) + 7 if x = 0.25.

pls help

Answers

Answer: 70

Multiply 8 by 0.25. Add 5 multiply that by nine then add 7.

Answer:

x= 9/14 or 0.642857

Step-by-step explanation:

Will give brainliest

Answers

i dont no but can someone help me on this???

Pick one thing about the U.S. Constitution including its amendments that you think should be changed. What modifications that you would make? Explain your reasons for making this change. Please write a 5 paragraph essay that details the changes

the answer is b= - 4

If u understand this May u help me please

Answers

Answer:

Sure what you need help with?

Step-by-step explanation:

A 5 inch × 7 inch photograph is placed inside a picture frame. Both the length and width of the frame are 2x inches larger than the width and length of the photograph. Which expression represents the perimeter of the frame?

Answers

Answer:

4x+12

Step-by-step explanation:

(5+2x)+(7+2x)

The perimeter would be 4x+12

Hope I helped!

Please mark Brainliest!!!

Answer:

The answer is A. 4x+12

Step-by-step explanation:

Just took the test on edge 2020 :D

Which expression is equivalent to (2x^2+3x-4)-(x^2-2x+4)

Answers

Answer:

3x + 2 = 14

Step-by-step explanation:

PLEASE HELP ILL MARK BRAINLIEST

Answers

Answer:

A, C, D, and E

Step-by-step explanation:

According to following triangle, the choices that explains that [tex]\triangle DBC[/tex] is isosceles, are:

-[tex]\overline {AB}[/tex] is an angle bisector of [tex]DAC[/tex]. (Choice A)

-[tex]\angle BDC[/tex] is congruent to [tex]\angle BCD[/tex]. (Choice C)

-[tex]\angle ABD[/tex] is congruent to [tex]\angle ABC[/tex]. (Choice D)

[tex]\angle DAB[/tex] is congruent to [tex]\angle CAB[/tex] (Choice E)

in math class , the girl to boy ratio is 8 to 6 . If there are 24 girls in the class , how many boys are there

Answers

Answer:

22 boys are in the class

Answer:

18 boys

Step-by-step explanation:

Girls: 24

Boys: ?

Ratio: 8:6

24 divided by three is 8

So 6 x 3 is 18

plz consider giving me brainliest =)

Al sumar su doble, su mitad y 15 se obtiene 99.

Answers

Answer:x = numero

2x= doble

x/2= mitad

sumamos todo : x+2x+x/2+15=99

7x/2= 99-15

7x= 84(2)

x=168/7

x=24

comprueba sumando 24+48+12+15=99 suerte!!!

Step-by-step explanation:

The value of the unknown number is 33.6

Let the unknown number be "x"

The half of the number is 0.5x

Double of the number is expressed as 2x

Adding this functions together and 15 and equating to 99 will give;

0.5x + 2x + 15 =99

Solve for x

2.5x = 99 - 15

2.5x = 84

x = 84/2.5

x = 33.6

Hence the value of the unknown number is 33.6

Learn more here: https://brainly.com/question/16510024

I am unable to understand how to solve this question, please send the working out.

Answers

1 Move the negative sign to the left.
(
9
x
)
1
2
8
x
−
1
2
3
(9x)

2

1

3
√
8x
−
2

1

2 Convert
(
9
x
)
1
2
(9x)

2

1

to square root.
9
x
8
x
−
1
2
3
√
9x

3
√
8x
−
2

1

3 Use this rule:
a
b
=
a
b
√
ab

=√
a

√
b

.
9
x
8
x
−
1
2
3
√
9

√
x

3
√
8x
−
2

1

4 Since
3
×
3
=
9
3×3=9, the square root of
9
9 is
3
3.
3
x
8
x
−
1
2
3
3√
x

3
√
8x
−
2

1

5 Use Multiplication Distributive Property:
(
x
y
)
a
=
x
a
y
a
(xy)
a
=x
a
y
a
.
3
x
8
3
x
−
1
2
3
3√
x

3
√
8

3
√
x
−
2

1

6 Calculate.
3
x
×
2
x
−
1
2
3
3√
x

×2
3
√
x
−
2

1

7 Use this rule:
(
x
a
)
b
=
x
a
b
(x
a
)
b
=x
ab
.
3
x
×
2
x
−
1
2
×
3
3√
x

×2x

2×3

−1

8 Simplify
2
×
3
2×3 to
6
6.
3
x
×
2
x
−
1
6
3√
x

×2x

6

−1

9 Move the negative sign to the left.
3
x
×
2
x
−
1
6
3√
x

×2x
−
6

1

10 Use Negative Power Rule:
x
−
a
=
1
x
a
x
−a
=
x
a

1
.
3
x
×
2
×
1
x
6
3√
x

×2×

6
√
x

1

11 Use Quotient Rule:
x
a
x
b
=
x
a
−
b
x
b

x
a

=x
a−b
.
\[3\times 2\sqrt[2}-\frac{1}{6]{x}\]

12 Simplify
1
2
−
1
6
2

1
−
6

1
to
1
3
3

1
.
3
×
2
x
3
3×2
3
√
x

13 Simplify.
6
x
3
6
3
√
x

Answer:

[tex](9x)^{\frac{1}{2} }.(8x^{\frac{-1}{2} })^{\frac{1}{3} }\\\\=9^{1/2}.x^{1/2}.8^{1/3}.x^{-1/2.1/3} \\\\=3.2.x^{1/2}.x^{-1/6} \\\\\\=6.x^{1/2-1/6}\\\\=6x^{1/3}[/tex]

Step-by-step explanation:

Solve.

24 + d = 30

d =

Answers

Answer:

I think d = 6 because 24 + 6 = 30

Answer:

d=6

Step-by-step explanation:

I worked on the project until it was completed.

Identify the subordinate clause in the complex sentence.

I worked on the project
on the project
it was completed
until it was completed

Answers

The subordinate clause would be “until is was completed”

Answer:

until is was completed

Step-by-step explanation:

d on edgnuity

·Has to be a number

Answers

Answer:

x=-4

Step-by-step explanation:

The bar graph shows the differences in a city’s rainfall from the historical average. Find the sum of the differences for the year. Write your answer as a decimal.

Answers

Answer:

The total amount of rainfall for the year is negative, -1.73

Step-by-step explanation:

-0.45 + -0.88 + 0.94 + -1.67 + -0.96 + 0.83 + 2.36 + 1.39 + 0.35 + -1.35 + -0.9 + -1.39 = -1.73

Can someone please solve this before I get my phone taken away?

Answers

Answer:

option 1 or should be

Step-by-step explanation:

4/1.5 is 2.6 and 2/3 as a fraction is 66666 so yeah

David kicks a ball off the ground. After t seconds, it’s height, h (in feet), is given by the formula h=-16t^2+80t. How many seconds does the ball reach its maximum height? What is the maximum height reached by the ball?

Answers

Answer:

The ball reaches its maximum height at 2.5 seconds

The maximum height is 100 feet

Step-by-step explanation:

Maximum Value of Functions

We use the derivative of a function to find its maximum or minimum value over a given interval.

Given a function y=f(x), the first derivative criterion establishes if x=a is such that:

f'(a)=0, and f''(a) < 0 then x=a is a maximum of f.

The height h in feet of a ball after t seconds is:

[tex]h(t)=-16t^2+80t[/tex]

Find the first derivative:

[tex]h'(t)=-32t+80[/tex]

Equate to 0:

[tex]-32t+80=0[/tex]

Subtract 80:

[tex]-32t=-80[/tex]

Divide by -32:

[tex]t = -80 / (-32) = 2.5[/tex]

t=2.5 seconds

Find the second derivative:

h''(t)=-32

Since h''(t) is always negative, then

The ball reaches its maximum height at 2.5 seconds

To find the value of the maximum height, substitute t=2.5 into the function:

[tex]h(2.5)=-16(2.5)^2+80*2.5=-100+200 = 100[/tex]

The maximum height is 100 feet

Where do I place each of them?

Answers

Answer: in their slots right below them

Step-by-step explanation:

can anyone help me please heheh

Answers

I think it should be 3

Answer:

sqrt160

Step-by-step explanation:

Using distributive property to write an expression that is equivalent to 8(a+4)

Answers

Answer:

8a+32

Step-by-step explanation:

8(a+4)= 8a+32

Hope helps :D

Answer: 8a+32.

Step-by-step explanation:

Which equation has no solution?

Answers

Answer:

Step-by-step explanation:

5/8x + 25 = 3/8x + 15 + 1/4x5/8x + 10 = 3/8x + 2/8x5/8x + 10 = 5/8x10 = 0

Use to isolate the variable

Answers

Answer:

reciprocals

Step-by-step explanation:

HAVE A GOOD DAY AND BE SAFE WIT THIS RONA

Determine the intercepts of the line.
x-intercept(_,_)
y-intercept(_,_)

Answers

Answer:

the X - intercept is (-7,0)

the Y - intercept is (0,2)

Step-by-step explanation:

the Y intercept is where the line crosses the Y axis

the X intercept is where the line crosses the X axis

Hope this helps

A. - 2y + 1 = y - 5
B. 2(6-2y)= 4y - 8
C. 8x+10y=12

Answers

Answer:

no idea, just doing this for points!

Step-by-step explanation:

Find an equation of a line containing the point (-6,3) and has slope
- 1/3

Answers

Answer: y=-1/3x+1

Step-by-step explanation:

To find an equation that contains the given point and has the same slope, we can plug it into slope-intercept form to find the y-intercept.

3=-1/3(-6)+b [multiply]

3=2+b [subtract both sides by 2]

b=1

Now that we know the y-intercept, we know that the equation is y=-1/3x+1.

What is the slope of the line with the points (3,5) and (6,4)

Answers

Answer:

The slope is -1/3

Step-by-step explanation:

(y2-y1)/(x2-x1)

(4-5)/(6-3)

-1/3

HELP PLZ can someone simplify this equation

Answers

7n² + 48n + 42

Combine like terms, -8n x -6n= 48n

-6 x -7= 42

Answer:

-49n^3 -n²+92n+42

Step-by-step explanation:

(7n²-8n-6)(-6n-7)

-42n^3-49n²+48n²+56n+36n+42

-49n^3 -n²+92n+42

2x+y =8 and y=x-7 solve by substitution

Answers

Answer:

you can do this by this please vote also

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Find the missing number in the following equation. k x 78 = 117 k = 1.5 k = 195 k = 39

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Find the missing number in the following equation.
k x 78 = 117

k = 1.5

k = 195

k = 39