Mathematics High School

I NEED HELP PLEASE!!!
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I NEED HELP PLEASE!!!

Answers

Answer 1

Answer:

13 seconds

Step-by-step explanation:

Since distance is directly proportional to time,

distance = time * a constant

Lets make A the constant

So, 54 = 9A

A = 6

Now, since distance = 78,

78 = time * A

From above, we can see that A = 6, so

78 = time *6

time = 13

Answer 2

Answer:

13

Step-by-step explanation:

54/9=6, 6 is the rate at which the car travels. 78/6 is 13 so that is how far the car traveled

Related Questions

Is the equation linear? Select Yes or No for each equation.

Answers

Answer:  1. yes  2.  yes  3. no

if x or y has more than one ex: xx

it is not linear

Duncan has 13 1/3 cups of sand. He divides the sand equally into 4 containers

Answers

Answer:

if you're asking how much sand is in each container, then

[tex]13 \frac{1}{3} \div 4 = 3 \frac{1}{3} \: cups \: of \: sand[/tex]

Answer um also very confused on this one AA.

Step-by-step explanation:

but i said 2 if your wondering.

George is building a fence he builds his fence at a constant rate of 1/3 section of fence every 1/2 hour at this rate what fraction represents the section of fence George can build per hour express your answer as a fraction

Answers

Answer:

2/3

Step-by-step explanation:

1/3= 1/2 hr.

×2 ×2

=

2/3=1hr

2/3

What is 6.92 x 10-3 written in standard form?

Answers

Answer:

6.92000

Step-by-step explanation:

because it has to be between q and 10

A field in the shape of a square has an area of 8,100 square feet . What is the length of 1 side of the field ?

Answers

Answer:

A) Find the square root of 8,100.

Step-by-step explanation:

Answer is above

27 is 25% of __? plz helpppp me Thia is worth all my brainly points

Answers

Answer:

27 is 25% of 108.

Step-by-step explanation:

A question like this is quite easy. You can multiply 27 by 4 to get 108.

That's the answer, hope it helps

the product of 9 and X​

Answers

The answer is 9x I believe

Estimate 2 perfect squares 15 would be between.
1. 3 and 4
2. 4 and 5
3. 2 and 3
4. 6 and 7

Answers

3. 2 and 3 is your answer
2 and 3 is correct for your answer

Plz help 50 points I need help now is it due at 7:30

Answers

Answer:

50

Step-by-step explanation:

I’m not sure what you mean since I can’t see the full on question let me know in the comments the full thing and I’ll answer without a doubt.

Simplify 4/9 - 5/12 + 1/4

Answers

Answer:

5/18

Step-by-step explanation:

The simplified answer is 5/18

Step-by-step explanation:

the answer is

0.27777777777

True or False: The following two systems of equations are equivalent:
6d + 4.5e = 16.5
5d + 0.5e = 4
and
30d + 22.5e = 82.5
5d + 0.5e = 4
O True
O False

Answers

Answer:

True.. :) Have a nice day.

Step-by-step explanation:

TRUE , the two system of equations are equivalent

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

We have two sets of equations

Let the first set of equation be A

Let the second set of equation be B

Equation set A :

6d + 4.5e = 16.5    be equation (1)

5d + 0.5e = 4   be equation (2)

Equation set B :

30d + 22.5e = 82.5   be equation (3)

5d + 0.5e = 4   be equation (4)

Now , we can see that Equation (3) is a multiple of Equation (1)

Multiply equation (1) by 5 , we get

5 ( 6d + 4.5e = 16.5 )

30d + 22.5e = 82.5   be equation (5)

Therefore , equation (5) = equation (3)

So , equation (1) = equation (3)

And , equation (2) = equation (4)

Therefore , Equation set A is equivalent to Equation set B

Hence , the two system of equations are equivalent

To learn more about equations click :

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You are flying your dragon kite. It is connected to 34 yards of string. The kite is directly above the edge of a pond. The edge of the pond is 29 yards from where the kite is tied to the ground. How high is the kite above the edge of the pond? Round your answer to the nearest tenth.

Answers

Answer:

18 yards

Step-by-step explanation:

To find the height of the kite we need to consider the problem as a right triangle and use the Pythagorean theorem to solve it:

[tex] c^{2} = a^{2} + b^{2} [/tex]

Where:

c: is the length of the hypotenuse

a and b: are the length of the sides of the triangle

We have that the length of one side is 29 yards and the length of the hypotenuse is 34 yards, so we need to find the other side (which represents the height) as follows:

[tex] a = \sqrt{c^{2} - b^{2}} = \sqrt{(34)^{2} - (29)^{2}} = 18 [/tex]                          

Therefore, the height of the kite is 18 yards.

I hope it helps you!

HELP!!
Given h(x) = 4x – 1, solve for x when h(x) = -9.

Answers

Answer:

-2

Given:

h(x) = -9

Step-by-step explanation:

h(x) = 4x - 1

-9 = 4x - 1

-9 + 1 = 4x

-8 = 4x

-8/4 = x

x = -2

hope you understood❤

The solution for x when h(x) = -9 is -2

What is a linear equation?

A linear equation is an equation that has the variable of the highest power of 1. The standard form of a linear equation is of the form Ax + B = 0. A mathematical equation is a statement with two equal sides and an equal sign in between. An equation is, for instance, 4 + 6 = 10. Both 4 + 6 and 10 can be seen on the left and right sides of the equal sign, respectively

Given;

h(x) = 4x – 1...(1)

h(x) = -9

Substituting the value of h(x) in equation 1

-9=4x-1

-9+1=4x

-8=4x

x=-8/4

x=-2

Therefore, the solution for the equation will be x=-2

Learn more about linear equations;

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The figure below shows a hexagonal prism. Imagine a cross-section of the prism formed by a plane that is perpendicular to the bases of the prism. What must be true about the cross section.

Answers

Answer:

Hexagon

(Sorry for the late answer,

this'll help kids in the future who google this, at least.)

It's a hexagon

Sorry I'm late (◞‸◟ㆀ)

34(3x+6)−14(5x−24) =

Answers

Answer:

32x+540

Step-by-step explanation:

Answer:

32x + 540

Step-by-step explanation:

1. Solve the multiplication:

102x +204 - 70x + 336

2.Simplify

32x + 540

helppp

Robert bought 3 baseball caps for the same amount and 1 baseball jersey that cost $45. Without tax, the total cost of the items is $90. What is the cost of each baseball cap?

Answers

Answer: The cost of each baseball cap = $15.

Step-by-step explanation:

Let x = cost of each baseball cap

Given; cost of each baseball jersey= $45

Total coast of 3 baseball caps and 1 baseball jersey = $90

i.e. [tex]3x+45=90[/tex]

[tex]\Rightarrow\ 3x=45\\\\\Rightarrow\ x=\dfrac{45}{3}\\\\\Rightarrow\ x= 15[/tex]

Hence, the cost of each baseball cap = $15.

Answer: it is A have a good day

Step-by-step explanation:

it is 35 degrees Celsius at your school and 90 degrees farenheit at home. where is the tempature higher?​

Answers

Answer:

90 is higher

Step-by-step explanation:

The school is a higher tempature (warmer) than your home.
Hope this helps! It helps me if u mark me as brainliest :)

What is the result of solving this equation for x?

y−b=m(x−a)

Answers

Answer:
x=(y-b)/m

Explanation:
y-b=m(x-a)
Divide both sides by m
(y-b)/m=x-a
Add a to both sides
(y-b)/m+a=x
x=(y-b)/m

I hope this helps! Please comment if you have any questions.

find the perimeter ​

Answers

Answer:

61 7/20

Step-by-step explanation:

1-2 Properties of Operations: I can use properties of numbers to rewrite expressions. Type the name of the property that each equation represents.
5) 12 + 8 = 8 + 12 The property is

6) 19 + (42 + 8) = (19 + 42) + 8 The property is

7) 24 + 0 = 24 and 36 x 1 = 36 The property is
help me pleaseee​

Answers

number 7 is identity I think

In a medical research study, a researcher selects a hospital and interviews
all the patients that day. Which sampling method is being used?

Answers

Answer:

vtgg

Step-by-step explanation:

You have a piece of paper, 10cm by 10cm. The
area is 100 cm2. For some reason, you need a
square piece of paper with an area of 50 cm2.
Using the paper you have, what's
an easy way of getting the new
square?
What will be the length of
each side of the new square?
What will be the new perimeter?

Answers

Each side would need to be around 7.1 cm

Can someone one help me with this ?

Answers

C :) because all other fraction are 1> or 1

Answer:

Step-by-step explanation:

It should be c

A bag contains 20 counters. 12 of the counters are green. A counter is picked at random. What is the probability that it is green? Give you answer as a fraction.

Answers

Answer:

12/20 since the counter of green is of 12 out of 20 to be drawn.


1. Convert 23,400 g into milliliters

Answers

Answer:same number i think

Step-by-step explanation:

PLEASE HELP! 30 POINTS!! WILL GIVE BRAINLIEST TO BEST ANSWER!!
THANK YOUUU

What is the expression in factored form? please show steps on how to get both answers!


1. x2+13x +42


2. 9x^2−4


^ means its number beside is the exponent.

Answers

Answer:

1. The factored form of the given expression is (x+7)(x+6).

2. What is the expression in factored form . 9x^2 -4

Step-by-step explanation:

1.  The given expression is,

The degree of the expression is 2, the constant term is 42, and the coefficient of x is 13.

Use factoring by grouping method

To find the factor form, we have to find two numbers whose sum is 13 and whose product is 42.

The factors of 42 are,

From which the sum of 6 and 7 is 13.

So We can write the 13x as 7x+6x.

2. This expression can be factorized using the difference of squares which can be illustrated as follows:

A^2 - B^2 = (A+B)(A-B)

In the given example:

sqrt(9x^2) = 3x

sqrt(4) = 2

and the two squares are separated by a negative sign

Therefore, the difference of squares is applicable

Based on this, factoring the given expression would give us:

9x^2 - 4 = (3x+2)(3x-2)

help ill mark u as brainlist​

Answers

Answer:

C

Step-by-step explanation:

(C) 12.5 if u need any help ask me.

Answer:

[tex]x = 112.5....... \: i.e \: option \: b.[/tex]

Step-by-step explanation:

[tex]first \: you \: need \: to \: write \: the \: statement \: \\ as \: a \: mathematical\: \: expession \: i.e : \\ if \: y \: \alpha \: x \\ y \: = kx \\ k = \frac{y}{x} \\ when \: y \: = 12.5 \: and \: x \: = \: 37.5 \: then : \\ k = \frac{12.5}{37.5} \\ \\ x = \frac{y}{k} = \frac{y}{ \frac{12.5}{37.5} } = \frac{y}{1} \div \frac{12.5}{37.5} = \frac{y}{1} \times \frac{37.5}{12.5} \\ \\ x = \frac{37.5y}{12.5} \\ \\ when \: y = 37.5 \: x \: will \: be : \\ x = \frac{37.5 \times 37.5}{12.5} = 112.5[/tex]

Write the equation of the line in Standard Form that passes through the point
(-3, 2) and has a slope of 4/3

Answers

Answer:

6

Step-by-step explanation:

y = 2x + b/y=mx+c use this equation to solve the sum

using y=mx+c  to solve the sum

y=2, x=-3 and m=4/3

after putting and simplfying the eq we get the value of m

A line passes through the points (-3, -1) and (-5, 4). What is the slope.of this line

Answers

Answer:

-2/5

Step-by-step explanation:

[tex]y_{2} - y_{1} \\x_{2} -x_{1} \\4- -1= 5\\ -5--3=-2 \\y=-\frac{2}{5}[/tex]

tl;dr: The slope is -5/2.

Hello!

First, if you get graphing paper and place those points, you'll see that the line is going down instead of up. This tells us that the slope is negative.

Now, we use the rise/run strategy.

Doing so, we are given 5/2. Since this is a negative, the slope will actually be -5/2.

So, the slope is -5/2.

Hope this was helpful. Please, correct me if I got something incorrect. Have a great day!

Please help I have no clue how to do this

Answers

Answer:

D

Step-by-step explanation:

The Correct Answer Is D, You Will Estimate All Of Your Answers Up, And One Down.

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