Mathematics High School

Josefina deposited $250 into her savings account. She then saved $40 per month. Which of the following equations shows a, the amount in Josefina’s saving account after t months?
a = 250 + 40•t


a = 250 — 40•t


a = 40 + 250•t


a = 40 + 210•t

Answers

Answer 1

Answer:

a=250+40*t

Step-by-step explanation:

Answer 2

Answer:

a = 250 + 40•t

Related Questions

Determine if the given lines are parallel, perpendicular, or neither
19. y + 5 = -12
x-y=10
20. 3x-5y=10
10x+6y=-36
I WILL GIVE BRAINEST!!! I NEED HELP DUE IN 2 HOURS
19 AND 20!!
I WILL ONLY GIVE BRAINEST IF YOU ACTUALLY DO THAT PROBABLY

Answers

Answer:

i had to do this like a few weeks ago but i only remember that the parallel ones have the same slope

Step-by-step explanation:

Step-by-step explanation:

19.y+5=-12

y=-12-5

y=-17

x-y=10

x+17=10

x=10-17

x=-7

20.3x-5y=10

3*-7-5*-17=10

-21+85=10

64=10

10x+6y=-36

10*-7+6*-17=-36

-70+102=-36

32=-36

ANY MATH EXPERTS PLS HELP RN I GOT 30 MIN LEFT I PUT 100 POINTS

Answers

Answer:

y = -1/4x-6

Step-by-step explanation:

y=mx+b

Use slope equation m = (y1 - y2) / (x1 - x2)

b is the y intercept : -6

Answer:

y=-1/4x+(-6)

Step-by-step explanation:

Slope intercept form is y=mx+b. To find the slope, pick 2 points the line crosses through and divide the rise by the run. You can see the y-intercept on the graph. Therefore the equation should be y=-1/4x+(-6).

HTH :)

At a candy store, you can buy pre-filled bags of candy that weigh 2 1/4 pounds for $8. At this same rate, how much would a 4 pound
bag of candy cost?

Answers

Answer:

$14.22

Step-by-step explanation:

step one:

given data

we are told that 2 1/4( 2.25 pound) of candy cost $8

let us find the cost of 1 pound first

so

2.25 pound cost  #8

1 pound will cost x

cross multiply

x=8/2.25

x=$3.55 for one pound.

step two:

Hence  if 1 pound cost $3.55

4 pound will cost = 3.55*4= $14.22

What is the prime factorization of 42?
2x 3 x 4
2x 3 x 7
3 x 3 x 4
3 x 3 x 7

Answers

Answer:

2*3*7

Step-by-step explanation:

Answer:

2 × 3 × 7

I hope this helps!

Which ones are functions?

Answers

Answer:

6,8

Step-by-step explanation:

5, 6, and 8 are functions because the x doesn’t have repeated numbers.

For the 7 in number 5 that doesn’t have an arrow, it just means, (7, 0).

Mark as Brainlie if it helped!

NEED ASAP


Select the THREE expressions that are equivalent to -2(4 – 3x) + (5x – 2).

A) 2x – 10
B) 11x – 10
C) -8 + 11x – 2
D) -8 – 11x – 2
E) -8 + 6x + 5x – 2
F) -8 – 3x + 5x – 2

Answers

Answer:

B , C ,E

Step-by-step explanation:

Open the brackets

= -8+6x+5x-2

= -8+11x-2

= 11x-10

options. E, C and B respectively

Answer:

(B). 11x - 10 ; (C). - 8 + 11x - 2 ; (E). - 8 + 6x + 5x - 2

Step-by-step explanation:

- 2(4 - 3x) + (5x - 2) = - 8 + 6x + 5x - 2 = - 8 + 11x - 2 = 11x - 10  

Need help been trying for 20 min

Answers

Answer:

lol i think its false and ik the pain

Step-by-step explanation:

please help I will give brainliest if its correct :) Question is in picture

Answers

Answer:

2.5

Step-by-step explanation:

Answer:

2.5 inches

Step-by-step explanation:

radius = half of diameter

5 / 2 = 2.5

how to rewrite 7(3 + 3 + 3) + 1 =

Answers

Answer:

=64

Step-by-step explanation:

7(3+3+3)+1

=7(6+3)+1

=(7)(9)+1

=63+1

=64

There are 20 students. Two-fifths of the students are girls. How many students are girls?

Answers

Answer:

There are 8 girls.

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

20 divided by 5 = 4.

4x2=8

triangle TCL is similar to triangle AEN. solve for x and y​

Answers

Answer:

y = 6.7

x = 8

Step-by-step explanation:

3^2 + 6*2 = y

√9 + 36 = y

6.7 = y

10^2 = 6^2 + x

100 = 36 + x

100 (-36) = 36 (-36) +x

√64 = x

8 = x

Given that 7x - 3y = 23
Find when y = -2
Give your answer as an improper fraction in its simplest form.​

Answers

7x - 3(-2) = 23
7x - - 6 = 23 (two minuses make a plus)
so it’s gonna be 7x + 6 = 23
Now you have isolate you x, so move everything else to the other side, but remember to change your sign when transferring to the other side

7x = 23 - 6
7x = 17
To isolate x in this multiple, you divide by 7 (because the inverse of multiplication is division)
x = 17/7

Bryan’s monthly electric bill is determined by adding a flat administration fee to the product of the number of kilowatt hours of electricity used and the cost per kilowatt hour. When he uses 1,100 kilowatt hours of electricity, his bill is $113. When he uses 1,500 kilowatt hours of electricity, his bill is $153. What is the monthly administration fee? $

Answers

Answer:

3

Step-by-step explanation:

What is the different between the expression (-2)3 and -23

Answers

Answer:

-23 is a set number (-2)3 is an equation

Step-by-step explanation:

The difference between (-2)3 and -23 are very simple. -23 is the product of another expression while (-2)3 can be simplified to -6 when multiplied.

can someone that will GIVE ME A GOOD ANSWER can you help me please

Answers

Answer:  -3 bc the exponent is adding -1 each time

Answer: -3 for the exponent box

Step-by-step explanation: Hi there! Let's get started.

We know that a negative exponent is going to decrease by a power of 10 every time for example 10 x 10^-1 = 1 because the -1 says we need to move the decimal point one to the left.

So with this we take 2.345 x 10^-3 = 0.002345.

We moved the decimal point 3 to the left from 2.345 to get 0.002345.

Hope this helps! :)

Stefanie is painting her bedroom. She can paint 12 1/3 square feet in 1/5 of an hour? How many square feet can she paint in one hour?
A. 37
B. 92 1/2
C. 61 2/3
D. 12 1/3​

Answers

Answer:

C (61 2/3)

Step-by-step explanation:

12 1/3=37/3=12.333 square feet paint

1/5=0.2 0.2x60=12 min

12.333x5=61.665 Square pain per hour

Solve for p
-6 - 2p = P
p=

Answers

Answer:

p = -2

Step-by-step explanation:

-6 -2p = p

-6 = 3p

p = -2

Carmen has 48 marbles. She gave 1/3 of her marbles to Chris. Chris gave 2 of his marble to his little brother. How many marbles does Chris have?

Answers

Answer:

Chris has 14 marbles

Step-by-step explanation:

First off 1/3 of 48 is 16.

So if Chris has 16

Then gave 2 to his brother.

16-2 = 14

Chris has 14

Hope this helps.

I need help plss ):!

Answers

1. 29°
2. 180°
3. 241°
4. 90°
5. 119°
6. 331°

PLS HELP
Select the equation of the line in which the x-intercept is 2 and the y-intercept is 8.
y-8=-2(x-4)
y =1/2 (x-4)
y-8=x-0
y-8= -4(x-0)

Pls help me :)

Answers

Answer:

Last option

Step-by-step explanation:

8(4x-4)=-5x-32 pls help

Answers

x= 0, i believe im solving for x

Answer:

x= 0

Step-by-step explanation:

PLEASE HELP ME ASAP RIGHT ANSWERS ONLY

You work 4 hours on Monday, 4.5 hours on Tuesday, 7.25 hours on Thursday, and 12 hours on Saturday. If you get paid $11.52 per hour, what is your total pay for the week

Answers

ANSWER $319.68
Add all of your hours up and then multiply them by $11.52

You are saving for a bike and can save $10 per week. You have $25 when you begin saving. Write an explicit equation
to represent the amount of money you have saved at any given week.

Answers

Answer:

your pretty whatsbyour name

Answer:

Amount of money saved  25 35 45 55 65 75 85

Step-by-step explanation:

Explanation:  On week 1 you have the $25 you already saved plus the $10 for that week, so $35.  

For every week after that add $10 to the money saved for the additional $10 saved that week.

On the 8th week the total amount of money saved is 95+10, or $105.

PLEASE HELP!! Geometric Series

Answers

Answer:

Step-by-step explanation:

[tex]S_{n}[/tex] = [tex]\frac{a_{1} (1-r^{n} )}{1-r}[/tex]

[tex]S_{75}[/tex] = [tex]\frac{10(1-0.9^{75} }{1-0.9}[/tex] = 10(1 - 0.00037) / 0.1 = 99.96

This equation shows how the length of Rob's essay depends on the number of hours he spends writing this week. p = h + 11 The variable h represents the number of hours he spends writing this week, and the variable p represents the total number of pages that have been written. How many hours will Rob have to spend writing this week in order to have written a total of 16 pages?

Answers

Answer:

Rob will have to spend 5 hours writing this week in order to have written a total of 16 pages.

Step-by-step explanation:

From the information given, you can use the formula p=h+11 and solve for h. Then, you have to replace p with 16 to get the amount of hours that Rob will have to spend writing this week in order to have written a total of 16 pages:

p=h+11

h=p-11

h=16-11

h=5

According to this, the answer is that Rob will have to spend 5 hours writing this week in order to have written a total of 16 pages.

Two subtracted from c is less than -19.

Answers

Answer:

c is less than or equal to -17

Step-by-step explanation: -19 +2

please help me with this i don’t understand much

Answers

Answer:

See below

Step-by-step explanation:

Three lengths will be a triangle only if the sum of two sides is greater than the third side.

[tex]19+11 > 17[/tex]

This is a triangle.

[tex]23+28> 52\\51>52\\51 \ngtr 52[/tex]

This is not a triangle.

[tex]9+25> 34\\34>34\\34\ngtr 34[/tex]

This is not a triangle.

[tex]13+14> 22\\27>22[/tex]

This is a triangle.

4
Roberta wants to create 32 ounces of new hand lotion, with a minimum 15% concentration of beeswax, from a mixture of
two lotions. One lotion has a 21% concentration of beeswax, and the second lotion has a concentration of 5% beeswax. Based on
the inequality below, how much of the 21% lotion, x, will she need?
0.21x + 0.05(32 - x) > 4.8
A x 20
ОВ.
x > 28
C. x 16
OD. x > 21.33
Reset
Submit

Answers

Answer: x _>_ 11.875

Step-by-step explanation:

Callista needs a carpet runner for her hallway. She needs it to be 1 1 2 feet wide and 10 feet long. What is the area of the carpet runner Callista needs? The area issquare feet.

Answers

Does the number say that 112? Or 1 1/2??? If it’s 112 it’s 1120. If it’s 1 1/2 it’s 15

Which ordered pairs are solutions to the inequality 4x + y > -6?
Select each correct answer.
(-1, -1)
(0, – 9)
(4, -20)
(-3, 6)
(2,0)​

Answers

Answer:

(-1,-1)(4,-20)(2,0)

Step-by-step explanation: Just fill in the x and y

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