Mathematics High School

Someone please help me I don’t understand!!!!

Answers

Answer 1

Answer:

y= 2x+3

Step-by-step explanation:

Related Questions

help find the missing side length????

Answers

Answer:

Step-by-step explanation:

LHS and RHS have same length so 66 - 42 = 24

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f(x)=3x+7, find f (3)=

Answers

Answer:

Step-by-step explanation:

F(3) = 3(3)+7 =16

Mary has $65,000 to invest into two accounts. The first account is a private savings offering 6% annual interest and the second account is a government savings account offering 4% annual interest. How much money should Mary invest in each account to make $3,520 in total interest.

Answers

Answer:

Step-by-step explanation:

Formula for calculating interest is expressed as;

I = PRT/100

P is principal

R is the rate

T is the time

For first account

I = P(1)(6)/100

I1 = 0.06P1

For the second bank!

I2 =>P2(1)(4)/100

I2 = 0.04P2

If the total interest is $3520, then

I1+I2 = 3520

0.06P1+0.04P2 = 3520.... 1

If the Amount invested = $65000

P1+P2 =65000..... 2

Solve. 1 and 2 simultaneously

Eqn 2 × 0.06

0.06P1+0.06P2 = 3900.... 3

Subtract 1 from 3;

0.04P2-0.06P2 = 3520-3900

-0.02P2 = -380

P2 = 380/0.02

P2 = $19000

Get p1;

P1 = 65000-P2

P1 = 65000-19000

P1 = $46000

Hence $46000 was invested in the first account and $19000 in the second

3/4x-5 = x

Please show working .

Answers

3-5=4x

-2=4x

Divide both sides by 4

-2/4=4x/4

X= -1/2

solve the equation for y: 1 / 3 x + y equals 4

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Subtract (1/3)x from both sides of the equation.

(1/3)(x) - (1/3)(x) + y = -(1/3)(x) + 4

0 + y = -(1/3)(x) + 4

y = -(1/3)(x) + 4

Done!

A can manufacturing company is designing a can of cat food to hold 5.5 oz, or about 163 cm3. They have written out that the equation for the surface area for a can with this volume is S=2πr2+163r. Explain why the equation is wrong and how to fix it.

Answers

Answer:

S = 2πr + 326/r

Step-by-step explanation:

Given

Volume = 163cm³

Required

Explain why S = 2πr² + 163r is not correct

The volume (V) of a cylinder is:

V = πr²h ----- (1)

And the surface area (S) is:

S = 2πr² + 2πrh ----- (2)

Make h the subject in (1)

h = V/πr²

Substitute V/πr² for h in (2)

S = 2πr² + 2πr(V/πr²)

Simplify the express in bracket

S = 2πr² + (2πrV)/(πr²)

S = 2πr² + 2V/r

Substitute 163 for V

S = 2πr + 2 * 163/r

S = 2πr + 326/r

The above shows the correct equation that solves the surface area and also shows how it was fixed by substituting proper values and following due process.

*PLZ HELP*...Given the following word problems, write an inequality that models the problem, then solve and check.
Baylee gets 3 stickers each time she cleans her room. She wants to earn at least 15 stickers in April. How many times does she need to clean her room in April?

Answers

Answer:

3x ≥ 15At least 5 times

Step-by-step explanation:

Let the number of cleaning be x

Then required inequality is:

3x ≥ 15

Solving:

3x ≥ 15x ≥ 5

The sum of two numbers is 20. One number is 26
more than the other one. Find the numbers.

Answers

Answer:

-3 and 23

Step-by-step explanation:

Adding -3 and 23, you get 20. On a number line, 23 is 26 places from -3.

5/6 multiplied by 1/5
Show you work please

Answers

Answer:

The answer is 5/30

Step-by-step explanation:

The answer is 5/30 because when multiplying a fraction by a fraction you have to multiply the numerator by the numerator and the denominator by the denominator so if you multiply 5 by 1 you get 5 and when you multiply 6 by 5 you get 30 so the answer is 5/30

Determine which slope is the steepest. Explain why it is the steepest.
A) Slope=2
B) Slope= 1/2
C)Slope=-4

Answers

Answer:

Answer choice C

Step-by-step ex. 4 is the greatest number out of explanation:

The greater the absolute value is, the steeper it is. In this case, the absolute value of -4 is positive 4 since the absolute value shows how far a number is a ways from zero and is always positive. 4 is the largest number out of all of these choices which means it is the steepest slope.

Which of the sets shown includes the elements of set Z that are both odd numbers and multiples of 7?
Z={-21, -14, -7.0, 7, 14, 21}
A {-21, 21)
B. {-21.-7. 7. 21)
C: {-14, 0.14)
D. {-21, -14, -7)

Answers

Answer:

B. {-21.-7. 7. 21)

Step-by-step explanation:

The set made up of odd numbers and multiples of 7 is given as;

{-21.-7. 7. 21)

Multiples of 7 are usually those numbers where 7 is factor.

Odd numbers are numbers that cannot be divide by 2.

So, the most fitting answer is B.

A fox can run at a rate of 62 miles in 2 hours. A rabbit can run at a rate of 22 miles in 30 minutes. Which animal has the faster speed in miles per hour?

Answers

Answer:

The rabbit is faster, as it has a speed of 44 mph.

Step-by-step explanation:

Since the fox runs 62 miles in 2 hours, its speed can be determined by dividing the miles traveled by the time it took to do so. Thus, since 62/2 equals 31, its speed was 31 miles per hour.

In turn, the rabbit can travel 22 miles in half an hour. Following the same procedure, since 22 / 0.5 equals 44, its speed is 44 miles per hour.

Therefore, the rabbit is faster than the fox, since it has a speed of 44 mph versus 31 mph for the latter.

whats the circumference of a circle if the radius is 1.5 show your work

Answers

Answer:

well the eqaution is c=2pie r

the answer is 9.42

Step-by-step explanation:

hope this helpsss

Step-by-step explanation:

C=2πr

=2×22/7×1.5

=44/7×1.5

=9.42857143

Choose the statement that describes a way to solve the equation x – 23 = 18.

1. Subtract 23 from both sides of the equation.

2. Subtract 18 from both sides of the equation.

3. Divide both sides of the equation by 23.

4. Add 23 to both sides of the equation.

Answers

The correct answer is number 4

Question 2
Which TWO expressions are equivalent to
1/2(2/3x-4)-2(1/4x-3)

Answers

answer:

- 1/6 x + 4

steps by steps:

Factor each completely.
1) 9r²-26r+16

2) 25b²-9

Answers

Answer: 1. ( 9r - 8 ) x ( r - 2 )

2. ( 5b - 3 ) x ( 5b + 3 )

Step-by-step explanation:

4x - 5y = 1
x= -6
Solve for x and y

Answers

Step-by-step explanation:

which of the following shows a proportional relationship

Answers

Answer:

Step-by-step explanation:

9514 1404 393

Answer:

c) H

Step-by-step explanation:

Consider the ratios of y to x:

F: 4/2 ≠ 13/5

G: 1/2 ≠ -2/5

H: 10/2 = 25/5 = 30/6 = 50/10 . . . . a proportional relationship

J: 3/2 ≠ 6/5

Table H shows a proportional relationship.

Find the midpoint of the line segment with endpoints (2,7) and (6,3).
es )
A)
(4,5)
B)
(4,6)
C)
(5.6)
D)
(5,7)

Answers

Answer:

endpoints (4,5)

Step-by-step explanation:

endpoints = (2+6/2,7+3/2)

= (8/2,10/2)

= (4,5)

I need help plz quickly!!:)

Answers

Answer:

the first option (2x+3y=-6)

Step-by-step explanation:

help pls! answer all three questions for brainlist!! (15 points)

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Answer:

#1. Peng spent $48,918.

#2. The farmer had $10,660 at first.

#3. 2,160 minutes

Step-by-step explanation:

#1. (26 × $1,334) + (19 × $749)= $48,918

#2. 26 × 410 + 162= $10,660

#3. 2 ×(9 + 6 + 9 + 6)×12 ×3= 2×30×12×3= 2× 360 × 3= 720 × 3= 2,160 minutes

Answer:

For the first one: [tex](26*1334)dollars+(19*749)dollars=\\34684dollars+14231dollars=48915dollars[/tex] this is the expression of how much she spendsFor the second one:[tex]26employee*410dollars/employee=10660dollars\\10660dollars+162dollars=10822dollars[/tex] This was the original amount he hadFor the third one:So rectangles have two pairs of equal sides, 2 rectangles of the same size means their perimeter is [tex]2*(9feet+9feet+6feet+6feet)=60feet[/tex] Change to inches [tex]1foot=12inches,so,60feet=720inches[/tex] She takes 3 mins per inch then[tex]1inch=3minutes\\720inches=(3minutes)*720=2160minutes[/tex] Is how long she would take

Please help I have no idea what the answer is

Answers

Answer:

Step-by-step explanation:

180 - 141 = 39

A straight angle equals to 180, since the lines are congruent, the angles have the same measurements.

Answer:

The value of x is 141° {Co interior angles}.

Step-by-step explanation:

Hope this helps you. Please mark me as Brainlist.

help please will give brainliest!!!!

Answers

9 cm
Explanation:
15 squared - 12 squared = the missing side squared.
225-144=81
The square root of 81 is 9

Answer:

Step-by-step explanation:

15^2-12^2=81

[tex] \sqrt{81} = 9[/tex]

(3x +8) - 6(2.5x - 3)

Answers

If you’re looking to simply the expression, the answer is -12x+26

Rita plans to make a call using a calling card. For each call, Rita has two options:

1. Pay $0.49, plus an additional $0.019 per minute.

2. Pay $0.059 per minute.

She predicts that her call will be minutes long. Which inequality represents the statement, "Rita would save money using the second option"?

Answers

The inequality that represents Rita saving money from the second option is 0.059x < 0.49 + 0.019x

How to determine the inequality that represents the statement?

From the question, we have the following parameters that can be used in our computation:

1. Pay $0.49, plus an additional $0.019 per minute.2. Pay $0.059 per minute.

These statements can be represented as

Option 1: y = 0.49 + 0.019x

Option 2: y = 0.059x

Where y is the total amount and x is the number of minutes

When she saves money, we have

Option 2 < Option 1

Substitute the known values in the above equation, so, we have the following representation

0.059x < 0.49 + 0.019x

Hence, the inequality is 0.059x < 0.49 + 0.019x

Answers

Answer:

90 degrees

Step-by-step explanation:

Answer:

90 degrees.

Step-by-step explanation:

50 degrees (NJ) + -40 degrees (Antarctica) = 90 degrees.

Find the value of x

Answers

Answer:

50?

Step-by-step explanation:

Answer:

x= 106

Step-by-step explanation:

The angle opposite 32 is also 32. Considering 44, the missing angle in that triangle would be 104. The angle to the left of 104 would be 76, and if you consider that angle 30 you are left with the measure of 74. X is the angle next to 74, so it makes sense for it to measure 106 because the values must add to 180, and even if it's not drawn to scale 106 looks accurate

Eric earns $390 during a 30-hour week. How much does he earn per hour?

Answers

Answer:

$13

Step-by-step explanation:

We find the unit rate by dividing the money earned by the hours

$390/30

= $13

He earns $13 per hour

Answer:

I think its 13...

Step-by-step explanation:

free brainliest for correct answer, just giving away points

Mr. and Mrs. Mustard have six daughters and each daughter has one brother. How many people are in the Mustard family?

Answers

Answer: 7

This is kind of a trick question. Each daughter has one brother- the same brother.

Answer:

14 people

Step-by-step explanation:

6(2) = 12

12 + 2= 14

Cameron won a laptop in a school raffle. The diagonal of the laptop measures 26 inches. The length is 24 inches. How tall is the computer screen?
plz help me

Answers

I need help to with this

Other Questions

Choose all that apply. Select the differences between saving and investing. Investing is riskier, but has the potential for a higher rate of return. Savings accounts are not federally insured. Some investments earn dividends. Savings accounts earn interest. To collect money from an investment, it is necessary to sell the investment. Tony sets up an experiment inside his classroom. He spaces 5 plants at equal distances along a straight line, with the first plant directly in front of a window and the last plant 10 meters (m) away from the window. He gives them equal access to air and water and then monitors the amount of gas each plants releases.A. He is monitoring oxygen. The amount of gas released should be highest for the plant in the middle and lowest for the plants at the endsB. He is monitoring carbon dioxide. The amount of gas released should be highest for the plant in the middle and lowest for the plants at the ends.C. He is monitoring oxygen. The amount of gas released should be highest for the plant closest to the window and the lowest for the plant farthest away from the window D. He is monitoring carbon dioxide. The amount of gas released should be highest for the plant closest to the window and lowest for the plant farthest away from the window. Which type of animal can breed on their own but have undergone physiological or behavioral changes due to captivity?O Undomesticated animalsO Domesticated animalsO Semi-domesticated animalsO Tamed wild animals i need helppp. thanks you!!! True or False: A clouds only purpose is to create precipitation. The arch was an architectural feature invented by the ancient Romans.truefalse : Where does skin color come from? 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Read the excerpt from an analysis of Hamlets "To be or not to be speech in Act III of Hamlet.Shakespeare begins the speech with the line "To be, or not to be: that is the question and then proceeds to ask multiple questions throughout the speech.When viewed through a formalist lens, the point of Shakespeares structure is tocontrast Hamlets speaking style with that of King Claudius.emphasize Hamlets indecision that recurs throughout the play.introduce a new motif that focuses on the inevitability of death.illustrate Hamlets confusion about his relationship with King Claudius. ALGEBRA 1 HW< please help to give explanations Luis has a pyramid shaped plant pot. It has a square base with a side length of 36 cm, and the height of the pot is 36 cm. Luis wants to fill the pot with soil so that the soil takes up 75% of the pot's volume. How far up the pot will the soil reach? which phrase best describes sacagawea? Jarome is 6 feet tall and cast a shadow that is 8 feet long. 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The group traveled up the Nile in two boats, stopping along the way to copy inscriptions on temples and monuments. After voyaging as far south as Nubia, they came back downstream to the ancient cities of Luxor and Thebes. At Thebes they camped in the Valley of the Kings, surrounded by the tombs of many pharaohs including Ramesses VI. Champollion wrote in his journal: "At last I have visited the palace, or rather the city, of monuments, Karnak. . . . No nation on earth, ancient or modern, has ever conceived architecture on so noble and vast a scale. . . ." Write the slope intercept form of the equation of each line.