Mathematics High School

You have $25 in your bank account. You start saving $9 each week. Your friend has
$10 in his account and is saving $12 each week. Which system of equations could be
used to model the total amount in the bank account, t as a function of weeks, w.
A)t=9w+25. T=12w+10
B)t+w=25. 10t+9w=12
C)t=9w+12w. T=10w+12
D)t=9w+12w. T+w=25

Answers

Answer 1

Answer:

A)t=9w+25. T=12w+10

Step-by-step explanation:

Equation for you:

t = 25 + 9w

Equation for friend:

t = 10 + 12w

Related Questions

which list shows these numbers in order from least to greatest?

Answers

Answer:

Step-by-step explanation:

[tex]\sqrt{9}[/tex] = 3

3[tex]\pi[/tex] = 9.42477

-2.4 = -2.4

-5 = -5

20% = 0.20

HELP ASAP!!! find the lines of symmetry. Select all that apply

Answers

Answer:

B. and D.

Step-by-step explanation:

If you folded that shape along the lines o and m, it would match up.

There are two lines of symmetry m and o. Options B and D are correct.

From the given figure we have to determine the axes of symmetries.

What is a line?

A line is a straight curve connecting two points or more showing the shortest distance between the initial and final points.

Here,
As of the given figure,
There are 2 axes of symmetry first line m and the other is line o.
Line l and line n are not symmetrical lines because the reflection of one portion will not be superimposed with the other.

Thus, there are two lines of symmetry m and o. Options B and D are correct.

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b. A child appears to be running into the street ahead. It takes 2.3 seconds for the driver to react and begin to brake, but this time at a rate of -7.5 m/s2. What is the stopping distance for the car in this situation?

Answers

Answer:

I got about 28.01 ft you might want to round or something

hope this helped

The required stopping distance of the car is 17.24 metes.

A child appears to be running into the street ahead. It takes 2.3 seconds for the driver to react and begin to brake, but this time at a rate of -7.5 m/s2. What is the stopping distance for the car in this situation is to be determined.

What is speed?

Speed is ratio of distance to the time. speed = distance / time.

The intial speed of the driver is 11m/s

Now total stopping distance = thinking distance + break applying distance
= v*t + u²/2a
= 11 * 2.3 - 11²/2*7.5
= 17.24 meters,

Thus, the required stopping distance of the car is 17.24 metes.

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Expert Help me plssss. I dont understand how to do it

Answers

Answer:

V=301.44ft^3

Step-by-step explanation:

l^2°r^2r^2+h^2

10^2=6^2+h^2

100=36+h^2

100-36=h^3

h^2=64

h=8

Volume of cone:

1/3πr^2h

1/3(π)(6)^2(8)

301.44ft^3

Hope it helps....

define isometric angle

Answers

Answer:

it's just a angle that is 3D

Step-by-step explanation:

please tell me where to plot the points and what the solution will be.

Answers

The graph would look like this...

What is the complement of an angle of 41°?
(A) 41°
(B) 49°
(C) 139°
(D) 90°
(E) 180°

Answers

B) 49. 90-41=49. Complement is any number subtracted to equal 90

round 3.060 to the nearest whole number.

Answers

Answer:

Step-by-step explanation:

dude kinda obv that its 3

Answer:

answer would be 3

Step-by-step explanation:

What is the value of A when we rewrite 3^x as A^5x

Answers

The value of A when we rewrite 3^x as A^5x is 3^⅕

We have given that,

The value of A when we rewrite 3^x as A^5x.

What is power?

The power (or exponent) of a number says how many times to use the number in a multiplication. It is written as a small number to the right and above the base number.

3^x

(3^⅕)^(5x)

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Answer:

3^1/5

Step-by-step explanation:

A sofa is 7 feet 5 inches long. How many inches is the sofa?

Answers

89 inches!

Because each foot is 12 inches and 12*7=84 and 84+5=89!

Convert the time. Enter your answers in the boxes.

324 minutes =

hours,

minutes

Answers

Answer:

5 hours and 24 minutes

Step-by-step explanation:

sorry if im wrong

Answer:

5.4 hours

Step-by-step explanation:

I'm not 100 percent sure

hope this helped ;)

a) 3= x + 7
b) -7a-49

Answers

Answer: b im pretty sure hope this helps :)

Step-by-step explanation:

Answer:

A: x = -4

B: a = -7 (I'm assuming the '-' in front of 49 was supposed to be an '=')

Step-by-step explanation:

A: You need to group the like terms together, and isolate the variable, which in this case is x.

Take the 7 over to the other side, so the equation looks a little bit like this.

3-7 = x.

3-7 is -4, so we've gotten our answer.

x = -4.

B: -7a = 49.

When two negative numbers are multiplied together, the product becomes positive.

49 is 7x7.

-7 times -7 would be 49.

So, in this situation, a would be -7.

a = -7.

Multiply and combine like terms. Use^ for exponents. (2x-10)(3x-3)

Answers

Answer:

The answer is 5x - 13

Step-by-step explanation:

All we do is add the x's and the other numbers.

2 + 3 = 5 and 10 + 3 = 13

So, the equation is 5x - 13

Hope this helps! :)

A cardboard box is shaped like a cube. The length of each face is 15 inches what is the volume of the box in cube inches

Answers

Answer:

3375 in³

Step-by-step explanation:

Volume of a cube = a³ ; where a = edge of the cube

Length of each face = edge of cube = 15 inches

Volume of cube = 15³

12 × ((6)^2/4) - 7

12 × (36/4) - 7

12 × 9 - 7

The image shown below shows the relationship between two chords formed inside of a circle

So the product of the lengths of the lines in the same chord is equal to the product of the other length of the chords lines if that makes sense

So basically 6 * 16 = 9 * x

we can now use this equation that was just made to solve for x

6 * 16 = 96

96 = 9x

*divide each side by 9*

96/9=10.66666667 *round to the nearest tenth* 10.7

9x/x

we're left with x = 10.7

how many sides a hetergon got

Answers

Answer:

Step-by-step explanation:

answer:

so there isnt such thing as a hertergon but if your looking for how much sides does a heptagon have

the answer is 7 !

ill add a photo here for you to see just in case i got the shape you were looking for wrong

but there isnt really any way to see how much sides a shape does have, the easiest way is to count the sides!

hope this help you and your problem! if you need anything else or if i didn't explain it well enough then please ask! hope you have a good rest of your day :)

38 − 7x = −2(x − 29)

Answers

Answer:

x = -4

Step-by-step explanation:

38 − 7x = −2(x − 29)

=> 38 - 7x = -2x + 58

=> 38 - 58 = 7x - 2x

=> -20 = 5x

[tex] = > x = \frac{ - 20}{5} [/tex]

=> x = -4 (Ans)

Survey / Statistical Question:
How many times has each person moved states?

Answers

Answer:

a regular person would gave moved 4 to 5 times

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