Mathematics High School

Alex bought 8 postcards in 4 days. At this rate, how many postcards would he have after 10 days?

18
80
20
40

Answers

Answer 1

Answer:

20

Step-by-step explanation:

Answer 2

Answer:

80

Step-by-step explanation:

Related Questions

Greg bought 19 11/16 gallons of gas. What decimal should the meter on the gas pump read? (19 11/16 its a fraction) plss help <33

Answers

Answer:

That would be 19.6875 in decimal form.

Step-by-step explanation:

Solve for z:
14=z-(-12)
z=___

Answers

Answer:

z=2

Step-by-step explanation:

14=z+12

2=z

Answer: The answer is z=2.

Step-by-step explanation: Step 1. Simplify the both sides of the equation: [tex]14=z+12[/tex].

Step 2. I flipped the equation that looks like this: [tex]z+12=14[/tex].

Last but not least is step 3. Subtract 12 from the both sides: [tex]z+12-12=14-12[/tex]; ∴, your answer should be z=2, I hoped this helps, Happy New Year, and mark me as brainliest. :D

estimate the sum or difference 9/10 + 7/8

Answers

Sum: 1 31/40 Difference: 1/40
IM SORRY IF IM WRONG I’m dumb I forgot how to this and im in middle school :,)

A cookie recipe calls for 1 cup of raisins and 2 cups of flour. When Alex made a batch of cookies, he used 2 cups of raisins and 3 cups of flour. Did Alex use the correct ratio of raisins to flour? Support your opinion.

Answers

Answer:

No

Step-by-step explanation:

1 cup raisins = 2 cup raisins

2 cup flower = 4 cup flour

Use the following function rule to find f(3).
f(x) = 12 – 3x
f(3)

Answers

Answer:

its 4

:))))))))))))))))) enjoy

Alesia has $20.00 to spend at a vegetable stand. The tomatoes cost $3.00 per pound and the cucumbers cost $2.00 per pound. Alesia puts 4 1/2 lb of tomatoes into her basket. she says she can also buy 6 1/2 of cumumbers. why is alessia incorrect?

Answers

4 1/2 lb of tomatoes costs $13.50 and 6 1/2 cucumbers costs $13
$13 + $13.50 = $26.50 which is more than $20

What is the degree of the polynomial f(x)=5x^4 -7x^3-12x^2+4x-2?

Answers

The degree of the polynomial is 4.

Explanation: Look at the highest degree in the polynomial. The highest degree in the given polynomial is 4. (The 5x^4 contains the highest degree which is, of course, 4.)
I hope this helps.

What is the answer QUICKLY PLZ −6+|2x+7|=−10

Answers

Step-by-step explanation:

x=3/2 it's the final result

Answer:

-5.5

Step-by-step explanation:

-10 - -6 = -4

2x+7 = -4

-4 - 7 = -11

2x = -11

x = -5.5

Help plz:))) I’ll mark u brainliest

Answers

If ?=98 then u and v would be parallel

what is the graph of this inequality?

Answers

Answer: The second one

Marcus had $21 to spend on two posters. After buying them he had $13. How much did each poster cost?

Answers

Answer:

$4

Step-by-step explanation:

Each poster cost $4 because $21 - $13 is $8 and you said he bought 2 posters so $8 divided by 2 is $4

I am a perfect fraction the sum of my numerator and denominator is one less than a perfect square. Their difference is one more than a perfect square.
their product is one less than a perfect square. what fraction am I?

Answers

Answer:

free points sorry lol same person

Step-by-step explanation:

How many solutions does the following equation have? |4x + 12| = 0
two solutions
one solution
infinitely many solutions
no solution

Answers

since its a inequality equation it will have Two solutions. one in - negative and other in + positive

i had fell asleep but this for the nikkas det wanted to see what i look like <3

Answers

Answer:

yes

Step-by-step explanation:

write any three rational numbers between -2 and 0.
please answer fast!!!!!!!​

Answers

3 rational numbers between -2 and 0 are -1.5, -1, and -0.5.

Rational numbers can be either positive or negative, and can even be decimals. Therefore, -1.5, -1 and -0.5 are all rational numbers.

(make sure you change up my words a bit if you're submitting this online, there are bots that scan your words to see if you're getting your answers online!)

can you tell me what 6+3.9 is

Answers

Answer:

9.9

Step-by-step explanation:

6 + 3.9 = 9.9


you add the two whole numbers together and get 9

then you need to add whatever is behind the decimal point which is 9

add them together and you get 9.9

Which of the following can be a solution to the inequality below?
2x > 6.
Pls send help

Answers

Answer:

x>3

Step-by-step explanation:

you divide both sides by 2 then you get three. The sign remains the same.

The system of equations below has exactly one (x, y) pair for its solution.

4x+6y=244x+6y=24
2x+y=82x+y=8
If we double each side of the second equation, 2x+y=82x+y=8, we have 4x+2y=164x+2y=16. Explain why the same pair that is the solution to the system is also a solution to this new equation.
If needed, you can support your explanation with hanger diagrams (upload a picture), or by inventing a situation that the equations represent.
If we add the two equations in the original system, we have 6x+7y=326x+7y=32. Explain why the same (x, y) pair is also a solution to this equation.
Again, you can support your explanation with diagrams or a situation, if needed.

Answers

Answer:

7.9

Step-by-step explanation:

because you don't make sentence

Please help I’ll give 40 extra points!!!


During a football game, a team lost 12 yards on the first play and then gained 5 yards on each of the next 3
plays. Which method finds the total yards at the end of the first four plays?

O add-12 to 3x5

O add 12 to 3x5

O add-12, 5, and 3

O add 12, 5, and 3

Answers

Answer:

Its the first one

Step-by-step explanation:

losing yards means negative... and then its multiplying 3 and 5

Answer:

It is the first 1

Step-by-step explanation:

the number y of calories burned after x hours of rock climbing is represented by the linear function y=650x find the domain , is the domain descents or continuous? explain

Answers

Answer:

The domain is discrete

Step-by-step explanation:

Given

[tex]y = 650x[/tex]

Required

What type of domain is it?

Based on the given options, the domain is continuous.

From the question, we understand that x represents the hours spent in climbing the rock.

The climber can decide to climb for 1 hour, 2 hours, ½ hour, ⅓ hour, ¼ hour, etc..

A domain is said to be discrete if it can only take integers (i.e. whole numbers), if otherwise, it is continuous;

So, since x is not limited to only whole numbers, then we can conclude that the domain of x is continuous

What is the probability of picking a diamond card on a deck of cards

Answers

There are 13 diamond cards in a stack of 52 cards,

so the probability of picking a diamond is 13/52 or 1/4

Answer:

very low chance

Step-by-step explanation:

this is because onñy wbout 1 or 2 of those cards come in a deck, if not none

I need help asap please​

Answers

Answer:

NOT A FUNCTION

Step-by-step explanation:

hope this helps

If 2/3=x/12, what is the value of x will give 15 points​

Answers

Answer:

x=8

Hope to help

Answer:

8

Step-by-step explanation:

2/3=x/12

cross multiply

3x=24

divide each side by 3

x=8

write the equation of the graph below into slope-intercept form​

Answers

Answer: y= -1/2x+3
Explanation:
Y= -1/2 + 3
To find the slope just do y/x and to find the y int go up on the graph 3 times

a(q-8)=23

solve for q

help appreciated! ​

Answers

Answer:

q= (23+8a)/a

Step-by-step explanation:

a(q-8)=23

or, aq-8a = 23

or, aq = 23+8a

or, q = (23+8a)/a

(I’m not sure if the A is part of the question or if A is what question you’re answering but I’ll work o for both)

A(q - 8) = 23

Multiply everything inside the brackets by A:

aq- 8a = 23

Divide both sides by a to isolate q - 8a:

q - 8a = 23 / a

Add 8a to both sides to isolate q:

q = 23 + 8a² / a

Without the A:

q - 8 = 23

Add 8 to both sides to isolate q:

q = 31

Sorry if I misunderstood but I hope I helped you, have a great day!!

What is the slope of (-3,1) and (1,-2)?

A. -4/3
B. 4/3
C. 3/4
D. -3/4

Answers

Answer:

Step-by-step explanation:

(-3,1) and (1,-2)

Slope is m= - 3/4

Answer:

D. -3/4

Step-by-step explanation:

Plug in you points into this formula: [tex]\frac{y2 - y1}{x2 - x1}[/tex]

Plug in (-3,1) and (1,-2)

[tex]\frac{-2 - 1}{1 - (-3)}\\\\\frac{-3}{4} = -\frac{3}{4}[/tex]

Hope this helps ya! Keep smiling!

Please Answer this quick!

Answers

Answer:

n = -1

Step-by-step explanation:

First distribute the -4

15-4n+8=27

Combine 8 & 15

-4n+23=27

Subtract 23 from each side

-4n=4

Divide each side by -4

n=-1

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

Answer:

n= -1

Step-by-step explanation:

15-4(n-2)=27 do the () first

15-4n+8=27  subtract 15 and 8 from both sides to get the -4n alone

-4n= 4  divide by -4

n= -1

HELP!! I WILL NAME BRAINLIEST!If f(x) = (x + 7), which of the following is g(x) based on the translation?
g(x) = (x + 9)2
g(x) = (x + 5)2
g(x) = (x - 9)2
g(x) = (x - 5)2

Answers

Answer:

g(x) = (x + 5)2

Step-by-step explanation:

:)

Ken and Paul


Trey and Viona have been mowing lawns to earn extra money. Their jobs earn them $52 per week. Ken worked for x amount of weeks and earned an extra of $20. Viona worked for y weeks. From the expressions below, select one that determines the total amount that Ken and Paul earned mowing lawns.

a
72x + 52y

b
52x + 20 + 52y

c
52x − 20 + 52y

d
52x + 72y

Answers

Answer:

B.) 52x + 20 + 52y

Step-by-step explanation:

Trey and Viona have been mowing lawns to earn extra money.Their jobs earn them $52 per weekKen worked for x amount of weeks and earned an extra of $20Viona worked for y weeks

The total amount they earned = $52x + $20 + $52y

The table shows some points on the graph of an exponential function g what is the range of g

Answers

Answer:

Range : [1, 81]

Step-by-step explanation:

Domain:  

Domain is a set of points representing x-values (input values) for any function.

Range:

Range of a function is represents the y-values or output values.

From the table attached,

Domain: [0, 4] Or 0 ≤ x ≤ 4

Range : [1, 81] Or 1 ≤ y ≤ 81

Answer:

all whole numbers

Step-by-step explanation:

range = all whole numbers

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