Algebra 1

David has a savings account that currently has $25. He spends $5 per week.

Х У
-2
0 25
1
4

Fill in the rest of the table.​

Answers

Answer 1

Answer:

35,25,20,5

Step-by-step explanation:

X.......Y

-2.....35 ( Assuming he has been spending 5$ a week we can backtrack)

0........25 ( given)

1.........20 ( he has spent 5)

4..........5 ( 5*4=20-25=5)


Related Questions

Hello! I’ll take any help !!

Answers

Answer:

√73

Step-by-step explanation:

a^2+b^2=c^2

8^2+3^2=c^2

64+9=c^2

√73 =√c^2

√73 =c

write three hundred and ninety six million two hundred and forty two thousand and two as a numeral

Answers

Answer:

Below.

Step-by-step explanation:

396,242,002

Drag the numbers below to put them in order from least to greatest:
2.2 2.276 2.291 2.14
2.26 2.221

Answers

Answer:

The numbers in order from the least to greatest are

2.291      2.276      2.221        2.26        2.14        2.2  

Step-by-step explanation:\

Just like fractions, decimals are worth less the more there is...

Is 2πr (2r+√(h^2+4r^2 ) ) over πr(r+√(h^2+r^2 )) a simplified algebraic ratio?

Answers

Answer : 1+1 = 11

22+22 = 2222

If some one could figure out the x and y are
The problem is
3x+4y=50
-2x=y

Answers

Answer:

x = -10

y = 20

Step-by-step explanation:

y = -2x

so

substituting the value in equation ii

3x + 4y = 50

or, 3x + 4(-2x) = 50

or, 3x + (-8x) = 50

or, 3x-8x = 50

or, -5x = 50

so, x = -10

so

y = -2x

or, y = -2*(-10)

so, y = 20

What is the slope between the points (5.-7) and
(–7.1)?

Answers

This is your awnser have a great night awnser is in the picture below

What is the percentage change from 99 to 35

Answers

Step-by-step explanation:

(35-99):99*100 =

(35:99-1)*100 =

35.353535353535-100 = -64.65

Percentage change from 99 to 35 is -64.64% .

Negative sign indicates that the number is decreased from the initial value.

Percentage change : When a number is increased or decreased from its original value is termed as percentage change.

Given, that number changes from 99 to 35.

Formula of percentage change  =  [tex]\frac{Final - Initial}{Initial}[/tex] × [tex]100[/tex]

Final number = 35

Initial number = 99

Substitute the values in the above formula,

Percentage change = [tex]\frac{35 - 99}{99} *100[/tex]

Percentage change = -0.6464 *100

Percentage change = -64.64%

Negative sign indicates that the number is decreased from the initial value.

Know more about percentage change,

https://brainly.com/question/14801224

#SPJ6

giải bất phương trình
a)2x+1/2x+2<1
b)1/x+4<1/x-2

Answers

Answer:

[tex]a)x < - \frac{2}{5} [/tex]

[tex]b)4 < - 2[/tex]

Step-by-step explanation:

[tex]a)2x + \frac{1}{2} x + 2 < 1[/tex]

[tex] = 4x + x + 4 < 2[/tex]

[tex] = 5x + 4 < 2[/tex]

[tex] = 5x < 2 - 4[/tex]

[tex] = 5x < - 2[/tex]

[tex] = x < - \frac{2}{5} [/tex]

[tex] = x < - 0.4 \times ∈( - \infty . - \frac{2}{5} )[/tex]

[tex]b) \frac{1}{x} + 4 < \frac{1}{x} - 2[/tex]

[tex] = \frac{1}{x} + 4 < \frac{1}{x} - 2.x≠0[/tex]

[tex] = 4 < - 2[/tex]

= X

What is the solution to this system of equations?

( __ , __ )

Answers

Answer:

x = 5

y = 3

(5,3)

Step-by-step explanation:

use substitution...

4x -3(2x-7) = 11

-2x + 21 = 11

x = 5

y = 3

An image point has coordinates B'(7,-4). Find the coordinates of its pre-image if the translation used was
(x + 4, y + 5).
B 3.1
B[3.-9)
B|11,-9)
B/11, 1)

Answers

Answer:

B

Step-by-step explanation:

To go from B' to B , perform the inverse operation

That is the translation rule is (x - 4, y - 5 ) , then

B'(7, - 4 ) → B (7 - 4, - 4 - 5 ) → B (3, - 9 ) → option B

What does 2:6 = 14:_______

Answers

Answer:

14:42

Step-by-step explanation:

As we got 2 to get to 14, that means that we need to times by 7. Then we times the 6 by 7 to get the answer of 42.

2:6 = 14:_ so i were u, i will divide 14/2=7 so 6x7= 42. [14:42 is the answer]

The temperature at 12:00 p.m. was 8°C. At 7:00 p.m., the temperature was -6°C. What was the change in temperature (in degrees Celsius)?
�� 6-degree increase
�� 14-degree increase
�� 6-degree decrease
�� 14-degree decrease

Answers

Answer: 14-degree decrease

Step-by-step explanation:

because it is getting colder and we know this because anytime temperature goes from positive to negative it becomes mad cold.

Anyways subtracting 14 from our initial temp at 8 degrees celsius brings us to a brisk -6 celsius

2. Using what you learned in Question 1, try to write
each of these quadratic expressions as a product of
two linear expressions. That is, try to write each
expression in factored form.
a. x^2 + 5x + 6
b. x^2 + 2x - 15
C. X^2 - 3x + 10
d. x^2 - 9x+8
e. x^2 - 16
f. X^2 - 10x + 6

Answers

Answer:

Ans

Step-by-step explanation:

In Q. No. F, 1st page last step there is /2.

OK

Write down the formula of calculating the average of the individual data

Answers

When calculating the average of individual data, you set of all observations of a given characteristic, usually in ascending order. The arithmetic mean for this series is calculated by summing the values of the observations and dividing the result by the number of observations.
Hope this helps, please give me brainliest
a1+an/2 is the formula for calculating the average

simplify 6^2n+1x9^nx4^2n÷18^nx2^nx12^2n please help ..Thank you​

Answers

Answer:

[tex]2^{-4 n}\times3^{-2 n} + 3^{-2 n}\times4^{-n}[/tex]

Step-by-step explanation:

Assuming you meant [tex]\frac{6^{2n}+1*9^n*4^{2n}}{18^n*2^n*12^{2n}}[/tex], the answer is [tex]2^{-4 n}\times3^{-2 n} + 3^{-2 n}\times4^{-n}[/tex].

Hey guys I need help in these. Thanks in advance^^
1) In which operations does the order of the numbers make a difference to the
final answer? Find out what this rule is called.
2) If evaluating the sum 2+3+4 does it make a difference which two numbers !
add first? Is the same true for the other operations? What's this rule called?

Answers

Answer:

Read explanation

Step-by-step explanation:

The two operations that you will get the same answer for no matter what order you do it is addition and multiplication.

Bonus: Technically, if you had something like 1-2-3 you could rewrite it as 1 + (-2) + (-3) and now it won't matter the order and for something like 1/2/3 you could rewrite as 1 * (1/2) * (1/3) and not it wont matter the order too!

This propetie is called the associative property of addition and multiplication.

In the second question since its addition the order you do it in does not matter.

Why: If you think of it logically adding in a diffrent order than the question does not matter since in the end your still adding the same ammount.

Remember: You can only swap the orders if everything is addition or multiplication and remember your order of operations when using this propety in the years to come.

Hoped this helped, Eddie K.W.

48 ounces of liquid detergent
for $6.19. Find the unit rate

Answers

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

Around 13 cents.

»»————- ★ ————-««  

Here’s why:  

⸻⸻⸻⸻

[tex]\rightarrow \frac{dollars}{ounces}= \frac{6.19}{48}=\frac{6.19/48}{48/48}=0.128958... \approx \$0.13[/tex]

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

Is 16g + 10 - 4g and 20g + 10 equivalent

Answers

No 16g-4g+10 = 12g+ 10

Solve the compound inequality 8x > –32 or 6x ≤ –48.

Answers

Answer:

x>-4 x≤-8

Step-by-step explanation:

Colin, Michael, and John are among 15 singers
in the community choir. Three members of the
choir will be selected at random to sing the
national anthem at the next city council meeting.
What is the probability that Colin, Michael, and
John will be the 3 singers chosen?
A.
1/910

B.
2/1125

C.
1/455

D.
1/5

Answers

Answer:

OPTION D

NO. OF SINGERS=15

NO. OF FRIENDS =3

THERE PROBABILITY =3/15=1/5

. Cathy is playing a game with a set of 52 cards. The cards are different
colors and each show a number.
• The probability of randomly selecting a black card is.
• The probability of randomly selecting a red card is.
If Cathy randomly selects a card, what is the probability that her card is
black OR red?

Answers

Answer:

something missing here... is this a regular deck of cards Hearts, spades, clubs , and diamonds ? 1/2 red and 1/2 black ... if so....

then.....

P(black) = .5

P(red) = .5

P(red or black) = 1 (100%)

Step-by-step explanation:

What is the solution to the equation?
5 = 2/5a

A. 2
B. 4 3/5
C. 12 1/2
D. 25

Answers

Answer:

3 rd Option

Step-by-step explanation:

[tex]5 = \frac{2}{5} a[/tex]

=> 5 × 5 = 2a

=> 25 = 2a

[tex] = > \frac{25}{2} = a[/tex]

[tex] = > a = 12 \frac{1}{2} (ans)[/tex]

Write an equation in point-slope form of the line that passes through the given point and
has the given slope: (3,4), m=1/3

Answers

Answer:

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

Step-by-step explanation:

Is 8 1/4 an irrational number?

Answers

8 1/4 is a rational number.

if you can expplain

Answers

Answer:

I can explain.  The answer is A

Step-by-step explanation:

Think of it this way: when you write a mixed number, the fraction is out of 100.    If the denominator is 8, find 1/8 of 100 by doing 100 divided by 1/8.  This gives you 12.5.  The entire fraction is 2/8, so we need to multiply 12.5 by 2, since it's only 1/8.  12.5 x 2 gives us 25.  In the decimal, this would be equal to .25.  A is the only answer that represents the mixed number as a decimal correctly.

Answer:

2.25

Step-by-step explanation:

2 2/8

We’re willing to find out which of these is equivalent to 2 2/8

2 ways to write 2 2/8

1. Decimal form

2. Improper fraction
•••••••••••••••••••••••••••••••
1. Convert 2 2/8 into a
decimal (by keeping the
whole number the same
and dividing 2/8)

2 2/8 = 2.25

2. Convert 2 2/8 into a
improper fraction (by
multiplying the
denominator by the
whole number and then
adding it to the numerator)

2 2/8 = 8 • 2 + 2

2 2/8 = 18

Finally add the denominator back

8 = denominator

18/8

So the two ways to write 2 2/8
are: 2.25 and 18/8

You start at (0, 2). You move right 2 units and down 4 units. Where do you end?

Answers

Answer:

(2, -2)

Step-by-step explanation:

Translation left or right adds to x-coordinate, translation up or down adds to y-coordinate.

Given coordinate (0, 2) and translation is 2 units right and 4 units down:

x = 0 + 2 = 2y = 2 - 4 = -2

The end points is (2, -2)

We have to move x co ordinates 2 more and y coordinate 4less

Do it

[tex]\\ \sf\longmapsto (0,2)[/tex]

[tex]\\ \sf\longmapsto (0+2,2+(-4))[/tex]

[tex]\\ \sf\longmapsto (2,2-4)[/tex]

[tex]\\ \sf\longmapsto (2,-2)[/tex]

We will end at (2,-2)

Help!!! can someone help me solve this page im getting really confused I will mark you brainliest ☆ if you help me solve this :)​

Answers

4 no. one i guess 10

not sure

Gabriel's family is investing $5,000 into two different bonds for college. One bond gave

an interest of 5% per year, and the other 3%. If the combined interest for the year was

$220, how much money was invested in each bond?

Answers

The amount invested in the bond that yields 5% is $3500 and the amount invested in the bond that yields 3% is $1500

This question would be solved using simultaneous equation

Two equations can be derived from this question

a + b = 5000  equation 1

0.05a + 0.03b = 220   equation 2

where a = amount invested in the bond that bears 5% per month

b = amount invested in the bond that bears 3% per month

Multiply equation 1 by 0.05

0.05a + 0.05b = 250 equation 3

Subtract equation 2 from 3

0.02b = 30

Divide both sides of the equation by 0.02

b = 1500

Substitute for b in equation 1

a + 1500 = 5000

subtract 1500 from both sides of the equation

a = 5000 - 1500 = 3500

Amount invested in the bond that yields 5% is $3500

Amount invested in the bond that yields 3% is $1500

To learn more about simultaneous equation, please check : https://brainly.com/question/15165519?referrer=searchResults

(a) Find the common difference of an A.P. whose first term is 5 and the number of terms is 30 and sum 1455.
(b) Find the common difference of an A.P. whose first term is 9, the number of terms is 7, and the sum is 0.

it's a optional mathematics Questions please solve him​

Answers

Sum = n/2[2a + (n - 1)d] where a = first term, n = number of terms and d = common difference

(a) 30/2(2 x 5 + (30 - 1) x d) = 1455
10 + 29d = 1455 / 15
29d = 97 - 10
d = 87 / 29 = 3

(b) 7/2(2 x 9 + (7 - 1)d) = 0
18 + 6d = 0
6d = -18
d = -3

(a)
537
Given that -+-+-=0, express a in terms of b and c.
a b c
Ar (9² - s)
Make q the subject of the formula p:
a
(b)

Answers

Answer:

Here ia your answer

Hope it helps

Answer:

see explanation

Step-by-step explanation:

(a)

[tex]\frac{5}{a}[/tex] + [tex]\frac{3}{b}[/tex] + [tex]\frac{7}{c}[/tex] = 0 ( multiply through by abc to clear the fractions )

5bc + 3ac + 7ab = 0 ( subtract 5bc from both sides )

3ac + 7ab = - 5bc ( factor a out of each term on the left side )

a(3c + 7b) = - 5bc ← divide both sides by (3c + 7b)

a = - [tex]\frac{5bc}{3c+7b}[/tex]

---------------------------------

(b)

p = [tex]\frac{\sqrt{4r(q^2-s)} }{q}[/tex] ( multiply both sides by q )

pq = [tex]\sqrt{4r(q^2-s)}[/tex] ← square both sides

(pq)² = 4r(q² - s) ← distribute

p²q² = 4rq² - 4rs ← subtract 4rq² from both sides

p²q² - 4rq² = - 4rs ( multiply through by - 1 )

4rq² - p²q² = 4rs ← factor out q² from each term on the left side

q²(4r - p²) = 4rs ← divide both sides by (4r - p²)

q² = [tex]\frac{4rs}{4r-p^2}[/tex] ( take the square root of both sides )

q = ± [tex]\sqrt{\frac{4rs}{4r-p^2} }[/tex]

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