Soro bought a $50.00 bus card at the beginning of the week. Each bus ride costs $2.50. He needs to have at least $20.00 on his card at the end of this month.To determine how many bus rides he can take between now and the end of this month, Soro wrote and solved the following inequality:50 minus 2.5 x greater-than-or-equal-to 20. Negative 2.5 x greater-than-or-equal-to negative 30. x greater-than-or-equal-to 12.What error, if any, did Soro make when writing or solving this inequality

Answers

Answer 1

Answer:

Soro did not make any erro

Step-by-step explanation:

Soro bought a $50.00 bus card at the beginning of the week. Each bus ride costs $2.50. He needs to have at least $20.00 on his card at the end of this month.

Let her number of rides he can take be written as x

$50 - $2.50 × x ≥ $20

50 - 2.5x ≥ 20

-2.5x ≥ 20 - 50

-2.5x ≥ -30

x ≥ -30/-2.5

x ≥ 12 rides

Soro did not make any error

Related Questions

Urgent!!!

set whether each of the following equations represents a growth or decay

1. f(x)= 3[tex]^{x}[/tex]

2.f(x) = (0.25)[tex]x^{x}[/tex]

3.f(x)= [tex]\frac{2}{3x^{x} }[/tex]

4.f(x) =[tex]\frac{3}{2} x^{x}[/tex]

Answers

Answer:

Notice that the written functions are mostly incorrectly written, after a short online search i've found the correct ones, which are the ones i will write in this answer.

A general exponential equation can be written as:

f(x) = A*(r)^x

Where A is the initial value, r is the rate of growth, and x is our variable.

If r > 1, the function represents a growth.

if 0 < r < 1, the function represents a decay.

1) f(x) = 3^x

Here we have r = 3

This is clearly larger than 1, then this function represents a growth.

2) f(x) = (0.25)^x

Here we have r = 0.25, which is smaller than 1 and larger than zero, then this function represents a decay.

3) f(x) = (2/3)^x

here we have r = 2/3 = 0.66

This is larger than zero and smaller than 1, then this function represents a decay.

4) f(x) = (3/2)^x

Here we have r = 3/2 = 1.5

This is larger than 1, then this function represents a growth,

What are some solutions to the inequality x>6?

Answers

Answer:

anything that is greater than 6 like 7, 8, 9, 10, 11, etc...

cuz the inequality would be true; 7 > 6, 10 > 6, etc...

Step-by-step explanation:

hope this helps...

(─‿─)

The library is 4 miles from the post office. How many yards is the library from the post office? The library is yards from the post office.

Answers

Answer:

7040 yards

Step-by-step explanation:

Because 1 mile = 1760 yards. So 4 x 1760 = 7040.

Answer:

7040 I think

Step-by-step explanation:

sorry if I'm wrong

Help plsss
Find Perimeter

Answers

Answer:

Step-by-step explanation:

10+10=20

8+8 = 16

36 is perimeter of the rectangle

diameter of half circle is 8

formula for circumference of a circle is r π = 8 x 3.14

8 x 3.14 = 25.12 but your not done yet its a half circle so divide by 2

25.12/2 = 12.56

12.56 + 36 = 48.56 is final answer

give me brainliest

please also answer this one rlly fast!!

Answers

Answer:

Step-by-step explanation:

1 ÷ 0.25 = 4

Please complete the table.

Answers

Answer:

10-35-45 and 5-17.5-22.5

Step-by-step explanation:

im spending all my points for this smh

Answers

Answer:

Ask a tutor girl under it you will see ask a tutor so click that

PLEASE HELPPPPP MEEEEE !!!!

Answers

You know the hypotenuse and the relevant angle and x is adjacent to this

Cos?= adj/hyp
Cos45=x/ root6 |multiply both side by root 6 to get rid of fraction

root6 x cos45 = x
x = root 3

I know the answer is 1 but I need to show it with positive and negative tiles and I don’t know what to put.
Draw Algebra Tiles to help you solve the following question:
4 - (-5) =

Answers

Answer and Step-by-step explanation:

So, the negatives cancel and turn into a positive.

The red squared of 5 become green squares.

55 points
2. Sammy throws a drawing pin 200 times and records how it lands

Pin up 160
Pin down 40

a. What is the probability the pin will land i) pin up? ii) pin down
b. How many pin ups would you expect if the pin was thrown i) 80 times ii)320 times iii) 400 times iv)1000 times

Answers

Answer:

160:40 or 160 to 40, 80:320 or 80 to 320, 400:1000 or 400 to 1000

Step-by-step explanation:

What is this number rounded to the nearest whole number

Answers

Answer 9

The first value behind the decimal point is 0.
When rounding if the value is 0-4 then the value you are rounding to remains the same.
If the value is 5-9 then the value would round up.
However, because it is a 0 it remains a 9.

y = 2x
x = -y + 6

help meee !

Answers

Answer:

x = 2

y = 4

Step-by-step explanation:

y = 2x

x = -y + 6, y = 6 - x

substitute for y:

2x = 6 - x

3x = 6

x = 2

y = 4

77777777777777777777777777777

1) Calculate the distance between point A: (22,12) and point B: (30,27)

Answers

Answer:

Step-by-step explanation:

√(x2 - x1)² + (y2 - y1)²

√(30 - 22)² + (27 - 12)²

√(8)² + (15)²

√ 64 + 225

√289

= 17

HELP ME PLEASE!!!! I am failing this class and don’t know what to do.

Answers

i have to do formative assignments too

A park has the shape of a trapezoid.

The shortest side of the park and its height have the same dimension.

Write numbers in the boxes to show the missing dimensions. What is the area of the park?

Hint: There are 3 parts in this question
Part 1 you need to find what is A
Part 2 you need to find what is B
Part 3 You need to calculate the area of all the figure ( find the area of the rectangle and two triangles then sum them all up)
Do not forget the unit!!

Answers

Answer:

[tex]the\: answer \: is \: {108 \: mi.}^{2} [/tex]

Step-by-step explanation:

Given hints:

a.) A park has the shape of a trapezoid.

b.) The shortest side of the park and its height have the same dimension.

In the given figure, the shortest side of the park is A. Since it is mentioned that the height and its shortest side have the same dimension, we can therefore say that the measure of A is 9 mi.

The longest side appears to be 6 miles longer that the shortest side:

[tex]b = a + 3 \: mi + 3 \: mi = a + 6 \: mi[/tex]

Therefore, B = A + 6 mi. = 9 mi. + 6 mi. = 15 mi.

Let's now determine the area of the park:

[tex]area = \frac{a + b}{2} h[/tex]

Where,

A = 9 mi.

B = 15 mi

H = 9 mi.

[tex]area = \frac{a + b}{2} h \\ \\ = \frac{9 \: mi. +15 \: mi. }{2} (9 \: mi.) \\ \\ = \frac{24 \: mi.}{2}(9 \: mi.) \\ \\ = (12 \: mi.)(9 \: mi. \\ \\ area = {108 \: mi.}^{2} [/tex]

The area of the park is 108 mi^2.

5400 J of energy is supplied to 3 kg of aluminum, by how much
will the temperature rise? ( c of aluminum is 900 J/kg °C)

Answers

Answer:

20°C

Step-by-step explanation:

Quantity if heat energy supplied is expressed as;

Q = mcΔt

m is the mass = 3kg

Δt is the temperature rise

Q = 5400J

c = 900 J/kg °C

Substitute

5400 = 3(90)Δt

5400 = 270Δt

Δt = 5400/270

Δt = 20°C

Hence the temperature rise is 20°C

there are 5 classes with 22 students per class ordering pizza. one pizza feeds 5 people. witch of the following is a good estimation of how many pizzas are needed?
A.50 pizza's
B.150 pizza's
C.100 pizza's
D.30 pizza's
E.20 pizza's

Answers

Answer: 50 pizzas

Step-by-step explanation:

22 x 5 = 110

110 / 5 = 20

After a cab ride, Jacob's total fare was $35. He paid the cab driver a 15% tip. How much was the tip? Thank you and plz hep i will be putting more and more questions about 4 more

Answers

Answer:

$5.25

Step-by-step explanation:

Given data

Total cost for the ride= $35

Tip= 15%

Let us find 15% of $35

=15/100*35

=0.15*35

=$5.25

Hence the amount of the tip is $5.25

A surveyor leaves her base camp and drives 43km on a bearing of 032°.She then drives 28km on a bearing of 154°.How far is she then from her base camp and what is her bearing from it

Answers

Answer:

36.84km ; 252.13°

Step-by-step explanation:

Using the cosine rule :

a² = b² + c² - 2bcCosA

a² = 28² + 43² - (2*28*43)*Cos58

a² = 2633 - 1276.0455

a² = 1356.9544

a = sqrt(1356.9544)

a = 36.8368

a = 36.84 km

For the bearing,

Obtain the angle at B using the Sine rule

a/SinA = b/SinB

36.84/sin58 = 28/sinB

36.84*SinB = 28 * Sin58

SinB = 23.745346 / 36.84

SinB = 0.6445533

B = sin^-1(0.6445533)

B = 40.13°

180 + (32 + 40.13)

180 - 72.13

= 252.13°

Explain what steps you take to find the greatest common factor of 24 and 32

Answers

Answer:

So first what I do is I list the factors of 24 and 32. So for 24, I would write 1, 2, 3, 4, 6, 8, 12, and 24. Then for 32, I would write 1, 2, 4, 8, 16, and 32. Finally, I would look through both lists and try to find the greatest number in common, which would be 8.

Step-by-step explanation:

can someone please help me to do this?