Mathematics College

simplify 8.9 - 1.4x + (-6.5x) + 3.4

Answers

Answer 1

Answer:

12.3 - 7.9x

Step-by-step explanation:

8.9 - 1.4x + (-6.5) +3.4

12.3 - 1.4x - 6.5=

12.3 - 7.9x

Related Questions

Ann worked 14 hours and earned a total of $108.50.
How much did she earn per hour?

Answers

Answer:

108.50 divided by 14= 7.75

Step-by-step explanation:

Answer: 7.75 per hour
Explanation: you would divide 108.50 by 14 and that gives you 7.75

Solve the rational equation [tex]3x+2/5=2x-1/3[/tex]

x = 1
x = 3
x = 6
x = 11

Answers

Answer:

Step-by-step explanation:

The equation is written incorrectly. It should be

(3x+2)/5 = (2x-1)/3

Answer:

11

Step-by-step explanation:

Find a coterminal angle to 20 degree

Answers

Answer:

380 degrees

Step-by-step explanation:

you can find one by adding or subtracting a multiple of 360 degrees

coterminal angle of 20 is: 380, 740, -340, -700

Solve for x, round to the nearest tenth. find x x =

Answers

sin = opposite / hypotenuse

sin x° = 4/6

x° = sin^-1 (4/6)

x = 41.81° (nearest tenth)

Hope this helps!

Given a right triangle, find the length of the missing leg given the hypotenuse is 13 cm and the other leg is 5 cm. (Round to two decimal places.)

Answers

Answer:
The length of the missing leg is 12 cm.

Explanation:

a² + b² = c² (Pythagoras theorem)

c is the hypotenuse (longest length) of a triangle.

a and b are the two other side of the triangle excluding the longest one.


Let x cm be the length of the missing leg of the right triangle.

x² + 5² = 13² (Pyth. Thm.)

x² = 13² - 5²

x² = 169 - 25

x² = 144

x = √144

x = 12

Hope it helps! Mark me brainliest if it’s correct.

The length of the missing leg given the hypotenuse is 13 cm and the other leg is 5 cm would be 12 cm.

What is the Pythagoras theorem?

The Pythagoras theorem states that the square of the longest side must be equal to the sum of the square of the other two sides in a right-angle triangle.

a² + b² = c² (Pythagoras theorem)

where, c is the hypotenuse (longest length) of a triangle.

And a and b are the two other side of the triangle excluding the longest one.

Let x be the length of the missing leg of the given right triangle.

x² + 5² = 13²

x² = 13² - 5²

x² = 169 - 25

x² = 144

x = √144

x = 12

Hence,  the length of the missing leg given the hypotenuse is 13 cm and the other leg is 5 cm would be 12 cm.

Learn more about Pythagoras theorem;

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Jeremiah sells bicycles at Bike Bonanza and is paid a 7% commission on each bicycle he sells. On Saturday he sold 3 bicycles priced at $165, $204, and $188. How much commission will Jeremiah receive?

A. 11.55
B. 116.97
C. 38.99
D. 557

Answers

Answer:

find 7% of (165+204+188)     that will be his commission.

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

557÷7 = 38.99

total sales 557 ÷ 7 % commission

Please help! I will mark brainliest! Random answers will be reported.

Answers

Answer:D’ (0, -1)

Step-by-step explanation:

Answer:

I believe the answer is (-4,-4)

Step-by-step explanation:

The question is asking for the coordinate of point D

If you count the space of lines on the y and x coordinates, you end up with your answer with point D.

In an isosceles triangle the base angles are both 32 degrees, find the vertex

Answers

Answer:

116 deg

Step-by-step explanation:

note that an isoceles triangle always have 2 base angles that are equal.

Here we are already given one base angle of 32 deg. It follows that the other base angle must also be 32 deg.

We now have 2 angles of a triangle and we need to find the remaining one. Also recall that all 3 internal angles of a triangle sum to 180 deg. if we let the missing angle be x, then:

base angle + base angle + vertex angle = 180°

or,

32° + 32° + x° = 180°

64° + x = 180 deg

x = 180 - 64

x = 116 deg

I really need the answer like ASAP !!

Answers

Answer:

D. 7/4

Step-by-step explanation:

A is on the 3/4 line

Since it it would be written as 1 3/4, it needs to be improper

3/4 + 4/4 = 7/4

Answer:

7/4

Step-by-step explanation:

For the top part of the fraction, count as many lines until you get to A: 7

For the bottom part of the fraction, count how many lines between each two numbers: 4

90 POINTSSSSSSS:
Part A: Bill earned $12 walking his neighbors' dogs on Saturday. He earned some extra money on Sunday doing the same thing. Write an expression with a variable that shows the total amount of money Bill earned Saturday and Sunday.

Part B: Bill was able to walk 2 more than twice as many dogs as his friend Steve. Write an algebraic expression to represent the number of dogs Bill walked compared with Steve.

Answers

Answer:

Part A:  12 plus x, the x being how much money he made on Sunday.

Part B: 2 plus x times 2

Step-by-step explanation:

Answer:

Part A:  12 plus x, the x is how much money Bill made on Sunday

Part B: 2 plus x times 2

Step-by-step explanation:

plz give brainliest

The figure below consists of a square and a right triangle. Find the missing length

Answers

Answer:

uh we need to see the figure

Step-by-step explanation:

This is what they're talking about

Pls help with this question

Answers

Answer: its the first one im sorry if im wrong

Step-by-step explanation:

Answer: The answer is 4 8/21

Step-by-step explanation:

can someone please help me out asap? thank you

Answers

Answer:

A,B, and C

Step-by-step explanation:

All of the answers are correct besides D, none of the above

AnswerA,B,C

Step-by-step explanation:

A is right , using the exponet property, it turns into [tex]x^{1/5}[/tex] to the 7 power which equal x to the 1.4 th power. Using the product of power, [tex]x^{1/5}[/tex] to the 7th power is the same as 1/5 times 7 which equal 1.4. so b is right .Using the fractioal exponet rule C is also right as 5th root of x to the 7th power is the same as  to the 7 power divided by 5 which 1.4 so c is right

Angle X and Angle Y are supplementary angles. Angle x is sixteen degrees more than three times the size of Angle Y. What are the measures of Angle X and Angle Y?

Answers

Answer:

Step-by-step explanation:

If angles X and Y are supplementary

X+Y=90

x=16+3y

16+3y+y=90

4y=90-16

4y=74

y=74/4=18.50

x=90-18.50=71.50

Answer:

The measures of the angles are x=139° and y=41°

Step-by-step explanation:

Supplementary Angles

Supplementary angles add up to 180°. If x and y are two supplementary angles, then:

x + y = 180        [1]

Since angle x is 16 degrees more than 3 times the size of angle y:

x = 3y + 16        [2]

Substituting [2] into [1]:

3y + 16 + y = 180

Simplifying:

4y = 180 - 16 = 164

Dividing by 4:

y = 164/4 = 41

Substituting in [2]:

x = 3*41 + 16 = 139

The measures of the angles are x=139° and y=41°

On average, Gil reads 57 pages in a book each week.
How many pages des Gil read in 12 weeks?

Answers

Answer:

684

Step-by-step explanation:

57 times 12

12 weeks times 57 pages= 684 pages in 12 weeks

A hydroelectric power plant uses water power to produce a useful form of energy. The diagram below shows the production of electricity using hydropower. During this process, energy causes several types of motion and change inside the power plant.

Answers

Answer:

the concrete of the power plant supporting the turbine and generator

Step-by-step explanation:

The recommended daily allowance of fat is 65 grams. One serving of oatmeal contains 3 grams of fat. Which proportion can be used to calculate the PERCENT of the daily recommended allowance of fat contained in one serving of oatmeal?

Answers

Answer:

One serving of oatmeal provides 4.6% of the daily recommended allowance of fat.

Step-by-step explanation:

3/65 ≅ 0.046 = 4.6%

One serving of oatmeal provides 4.6% of the daily recommended allowance of fat.

Please help meee!!!!!!!

Answers

Answer:

1) two spaces are being added per figure. 2)203

Step-by-step explanation:

Answer:

1. Two tiles add per figure, one on each side.

2. The hundredth figure would have 201, because if you want to find the answer to any figure you multiply by two and add one

Step-by-step explanation:

how to solve 893.76 divided by 0.21

Answers

Answer:

4256 hehe your welcome

Answer:

4,256?

Step-by-step explanation:

i don't know if I'm right

Solve the system of linear equations using multiplication.

−4x + 3y = −9
5x − 2y = 48
The solution is_____

PLEASE SHOW WORK

Answers

Answer:

The solution is (18,21)

Step-by-step explanation:

The picture shows the steps.

Hope this helps!!!

Please help
9(2+17)+13z=17

Answers

Answer:

9(19)+13z=17

171+13z=17

13z=171-17

Z=154/13 is the answer

Step-by-step explanation:

Pls mark me in brain list

Answer:

z = -154/13

Step-by-step explanation:

1.) Add the numbers

9(2+17)+13=17

9(19) = 13z = 17

2.) Multiply the numbers

9 x 19 + 13z = 17

171 + 13z = 17

3.) Rearrange terms

171 + 13z = 17

13z + 171 = 17

4.) Subtract 171 from both sides of the equation

13z + 171 = 17

13z + 171 - 171 = 17 - 171

5.) Simplify

Subtract the numbersSubtract the numbers

13z = -154

Solution

z = -154/13

PLEASE HELP !!! ILL GIVE BRAINLIEST!! *DONT SKIP* ILL GIVE 40 POINTS.

Answers

Answer:

12

Step-by-step explanation:

This kinda looks like slop-intercept form. Thats why I'm kinda guessing thats its 12

Step-by-step explanation:

2y-12x=36

2y=12x+36

y=6x+18

The rate of change of the equation is 6.

Please help me?!!!!!!!!!

Answers

They are both right
They are both correct. You can choose either

Solve:

p + 6 = 23
A. p = 17
B. p = 14
C. p = 13
D. p = 12

Answers

Answer:

A) 17

Step-by-step explanation:

p=23-6

p=17

Hope I helped!

Answer:

A

Step-by-step explanation:

a number divided by the sum of 4 and 7

Answers

Answer:11

Step-by-step explanation:

Answer:

11/ 4 + 7 = 11/11 = 1?

Step-by-step explanation:

I have 30 glasses each hold 1 1/3 do I have enough glasses if I have 50 cup of fruit punch bowl

Answers

Answer:

No you do not

Step-by-step explanation:

If you divide 50 by 1 1/3 you 37.5 which you you have 30 glasses so you do not have enough

On Tuesday, Leslie spent 47 minutes on math homework, 39 minutes on science homework, 52 minutes on English
homework, and 44 minutes on history homework. How much time did Leslie spend doing her homework on Tuesday?


How many hours and minutes did she spend doing her homework ?

Answers

the answer should be 3 hours and 2 minutes.

Find X
put step by step please

Answers

Answer:

x = 29.7 or 29.69848480

Step-by-step explanation:

Use the formula a² + b² = c²

21² = 441

20² = 400

400 + 441 = 882

√882 = 29.7

You square the number at the end to cancel out the squared number, since both 21 and 20 aren't originally squared.

R+6> 13 solving one step inequalities

Answers

Answer:

R > 7

Step-by-step explanation:

R+6> 13   (subtract 6 from both sides)

R > 13 - 6

R > 7

Need help on this question

Answers

it’s the last answer because it is not inside the whole numbers bubble so it can’t be a whole number. since it’s in side the rational bubble it’s still a rational number
Other Questions
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