Mathematics High School

Please help me, linear equations. Hurry please :)

Please Help Me, Linear Equations. Hurry Please :)

Answers

Answer 1

Answer:

C) 18

Step-by-step explanation:

All you have to do is solve the equation.

2.25x + 5 = 45.50 (subtract 5 on each side)

2.25x = 40.50 (divide by 2.25 on both sides to get the x alone)

x = 18

40.50/2.25 = 18

Answer 2

Answer:

18 Miles

Step-by-step explanation:

If she tipped the driver $5, we need to remove that from the equation. So it's now $40.5.

Now to find the answer all we need to do is divide 40.5 by 2.25, which is 18.

Related Questions

I need help on this plz

Answers

should be A..........

Answer:

b

Step-by-step explanation:

Solve for value of y.

Answers

Answer:

y = 6

General Formulas and Concepts:

A box at an angle signifies a 90° angle.

The 2 angles that add up to 90° are called Complementary Angles

Step-by-step explanation:

Step 1: Set up equation

The 2 angles are Complementary Angles. They must add up to 90°.

(6y + 5) + (8y + 1) = 90

Step 2: Solve for y

Combine like terms:                         14y + 6 = 90Subtract 6 on both sides:                 14y = 84Divide both sides by 14:                    y = 6

Answer:

y = 6

Step-by-step explanation:

So, the two angles sum up to 90 degrees.

Based on that, form an equation;

6y + 5 + 8y + 1 = 90

simplify,

6y + 5 + 8y + 1 = 90

14y + 6 = 90

inverse operations,

14y + 6 = 90

      -6     -6

14y = 84

/14     /14

y = 6

HELP ME PLZZZ I NEED HELP WITH THIS

Answers

A , -5 F 10 dived by 2 ( hours) equals 5

Answer:

-5 degrees (the first one )

Step-by-step explanation:

Divide -10 by 2 to get the number of degrees in F were lowered in one hour like so:

-10 / 2

= -5

Therefore, the temperature dropped 5 degrees in one hour.


Write each decimal as a fraction in simplest form.
9. 0.008
10. -0.6
11. -2.05

Answers

9.1/125

10.-3/5

11. -2 1/20

simplify
-3·-8


hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Answers

Answer:

24

Step-by-step explanation:

A negative integer times a negative integer is the same as a positive integer times a positive integer, so this would be the same as (8)(3) which is 24.

PLEASEEE SOMEONE HELP I WILL MARK BRAINLIEST please do step by step explanation!

Answers

27 x 1.25= 33.75
5 x 1.99= 9.95
1 x 1.50= 1.50
Then you add up the totals and get $45.20
Lastly you divide $45.20 by 26 students getting your answer of $1.738

10 1/7 divide by 5 can you help me

Answers

Answer:

2.02857142857

Step-by-step explanation:

Can someone please help me graph y = 2x - 7

Answers

Answer:

(0,-7) and (3.5,0) are where your dots will go

Step-by-step explanation:

yo if u need an bralest i got chu

Answers

Answer:

PLease

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

What would 2300 divided by 330 times 3 epuals what ?

Answers

Answer: 23

Step-by-step explanation:

Simplify the expression:
4 + 7(-7 + -9k)

Answers

Answer:

-63k - 45

Step-by-step explanation:

combine like terms

manny's cleaning supply store receives a mixture of 80% detergent and 20% water in 15 gallon buckets. manny would like a mixture of 60% detergent and 40% water in each 5 gallon bucket. how many gallons of pure water does manny add to each 5 gallon bucket? express your answer as a decimal to the nearest hundredth

Answers

Answer:

1.25

Thanks,

SunshineMadison101

Find the inverse of the following functions algebraically

Answers

The answer is g^-1= x^2/2 + 1/2

-2(4x - 2) < - 8x + 4

Answers

Answer:

Both sides are equal.

So less than symbol can't be use in this case.

Step-by-step explanation:

This problem has no solution until you change any elements correctly.

thanks..

What is the slope of the following points:

(–3, 10), (–3, 7)

Answers

Answer:

undefined

Step-by-step explanation:

Answer:

Undefined

Step-by-step explanation:

(7-10) / -3-(-3)

-3/ -3+3

-3/0

UNDEFINED!

John works at a factory and makes $11.25 an hour. This week he worked 45 hours
and last week he worked 39 hours. How much money did John make in the past 2
weeks?

Answers

Answer: $945

Step-by-step explanation: 11.25x39 is 438.75 and 11.25x45 is 506.25 and you add them together which is 945

So if he works for 45 hours and per hour he gets 11.25 then you would do 11.25x45=506.25 so then 11.25x39=438.75
So 506.25+438.75 so he made 945.00

A set of 4 consecutive even integers adds up to 68.

Answers

Answer:X=14,/ integers are-14,16,18,20

Step-by-step explanation:

What is the image of (-2,5) after a refection in the line y=3?

1. (-2, 1)
2. (8.53
3. (-6, 15)
4. (-1,2)
5. (1,8)​

Answers

(-2,1) hope this helps!

Find the sum of (-236) and 573

Answers

It’s 141 if that helps

Answer:

the answer is 337

Step-by-step explanation:

-236+573=337

In a class of 40 students, every student take either Biology or Integrated Science, 30 students take Biology, 20 students take Integrated Science and 10 take both Integrated Science and Biology. Illustrate this information on a Venn diagram.​

Answers

Answer

20 students will take biology, 10 take Integrated Science and 10 take both

Step-by-step explanation:

With Venn diagrams it's best you work from the inside out. With that in mind we know 10 students take both Biology and Integrated Science. In Biology there are 30 total students including the ones that also take both sciences. So we subtract the ones that take both and get 20 students taking only biology. After that there's 30 students total, subtract that from 40, the total number of students and you get 10, the amount of students who take Integrated Science

???? - (-7) = 5
Help me please and Thank you

Answers

Answer:

-2

Step-by-step explanation:

x-1(-7)=5

x+7=5

-7 bot sides

-2

Solve the word problems using either the percent equation or the percent

proportion. Make sure to answer in a complete sentence. Round to the whole

number if necessary.





Tyler and Ilan scored 48% of their team’s points in the math

competition. If they scored 84 points, what was the team’s total score?

Answers

Answer:

Tyler and llan scored 24 points.

Explanation:

Another way to state this problem is what is 48% of 50.

"Percent" or "%" means "out of 100" or "per 100", Therefore 48% can be written as

48

100

.

When dealing with percents the word "of" means "times" or "to multiply".

Finally, lets call the number we are looking for "n".

Putting this altogether we can write this equation and solve for n

while keeping the equation balanced:

n=48,100 × 50

n = 24,001,00

n= 24

Step-by-step explanation:

How do i get A and B ?

Answers

Answer:

a=60°

b=300°

Step-by-step explanation:

the triangle is equilateral so all angles are 60 °

a = 60°

b=360 - 60 =300°

Answer:

A is 60°, B is 300°

Step-by-step explanation:

If you look closely, you can tell that this circle is divided into 6 triangles, but there is only one showing. This triangle is 1/6 of the circle.

You can find B by find 1/6 of 360° and subtracting that from 360, (a full circle is 360°)

1/6 of 360° is 60°

360° - 60° = 300°, so B is 300°

Now lets find A. Triangles are 180°. This triangle is obviously an equilateral triangle, so the measurements will all be the same.

180 ÷ 3 is 60, so A is 60°

I hope this helped, please mark Brainliest, thank you!

1-(2x+4)=4x+5 solution

Answers

The correct answer is x= -1.3

Given m||n, find the value of x.

Answers

Answer:

x = 20

Step-by-step

Because the two angles are o the same line ( line t) we know that x+160 will equal 180 degrees, so to solve

180-160= 20

MAX POINTS ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST ONLY CORRECT ANSWER

A conjecture and the two-column proof used to prove the conjecture are shown.
Given: the measure of angle C B D equals 90 degrees. Prove: triangle A B C is a right triangle. Ray B D extends down and perpendicular from point B on segment B C.

Drag an expression or phrase to each box to complete the proof.

Statement Reason
1. m∠CBD=90° Given
2. ∠ABC and ∠CBD are supplementary. Response area
3. Response area Definition of supplementary
4. m∠ABC+90°=180° Response area
5. Response area Subtraction Property of Equality
6. ∠ABC is a right angle. Definition of right angle
7. △ABC is a right triangle. Definition of right triangle

Answers

Answer:

I took the test

Step-by-step explanation: Linear pair postulate

m<abc + m<cbd =180°

subtraction property of equality

m<abc -90°

All expression and phrase are filled below.

Here,

We have to filled all expression and phrase.

What is right angled triangle?

A right-angled triangle is a triangle, which has one of its interior angles equal to 90 degree.

Now,

Given that;

⇒ m∠CBD = 90 degree  ….(i)    

We have to prove triangle ABC is right angled triangle.

We can see that the line extends down and perpendicular to the line segment BC at point B.

We can also see that ∠ABC and ∠CBD are supplementary angle.

Hence, We prove as;

         Statement                                                Reason

1) m∠CBD = 90 degree                                        ( Given )

2) ∠ABC and ∠CBD are supplementary.  ( Because ABD is a line and  

                                                                ∠ABC and ∠CBD are linear

                                                                pair)                                                

3). ∠ABC+∠CBD = 180 degree                ( Definition of supplementary)

4) ∠ABC+ 90 = 180 degree                      (  m∠CBD = 90 degree )

5) ∠ABC + 90 - 90 = 180° - 90°            ( subtraction property of equality)

                                                                         

∠ABC = 180° – 90°    (from (i))

∠ABC = 90 degree

6) ∠ABC is a right angle.                     ( Definition of right angle)

7) Δ ABC is a right triangle.                  ( Definition of right triangle)

Therefore, according to definition of right angled triangle,

The triangle ABC is a right angled triangle.

To learn more about right angled triangle visit:

https://brainly.com/question/1248322

#SPJ2

What is the value of the expression 5(X+3) when X=-3?

Answers

Answer:

0

Step-by-step explanation:

5(x+3) replace x with -3

5(-3+3)

5(0)

0

|x-3|+2<6
help please

Answers

Inequality form:
-1 < x < 7
Interval notation;
(-1,7)

simplify 5(b – 4) + 12

Answers

Answer: 5b-8

Step-by-step explanation:

What are all the equivalent representations of 10 x 10 x 10

Answers

10 to the third power, 1000, and hmm

Answer:

10³                                        

no need to thank me, it was easy

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