Mathematics High School

Kelly ran 3 miles fewer than twice as far as Jim. Jim ran
m miles. Which expression represents how far Kelly ran?

Answers

Answer 1

Answer:

2m - 3

Step-by-step explanation:

she ran 3 miles less than twice as far as Jim

Related Questions

Find the distance between the two points rounding to the nearest tenth (if necessary). ( 3 , − 3 ) and ( 7 , − 8 )

Answers

Answer:

6.4 units

Step-by-step explanation:

c = √(x1 - x2)^2 + (y1 - y2)^2

c = √(3 - 7)^2 + (-3 + 8)^2

c = √(-4)^2 + (5)^2

c = √16 + 25

c = √41

c = 6.4031...

c = 6.4

Help please and thxxx

Answers

Answer:

e

Step-by-step explanation:

someone help solve it please

Answers

Answer: 10

Step-by-step explanation:

The x-intercepts means when y equals 0, or when the function crosses the x-axis.

0 = (x-6)^2 - 16

16 = (x-6)^2

Take the square root of both sides:

4 = (x-6)

Add 6 to both sides to get:

x = 10

A pencil box contains five
red, six yellow, eight blue,
three orange, and two
purple colored pencils. If
one is chosen at random,
find each probability.

Answers

Answer:

red pencil=5/24

yellow pencil=6/24

Blue pencil=8/24

Orange pencil=3/24

purple pencil=2/24

help asap!! the curriculum is plato

Answers

It’s C hope it helps

Find the value of g (-2) if g(x) = x3 - x

Answers

Answer: -6

Step-by-step explanation:

See attached picture

5. What are the two most common
causes of chemical weathering?

6. Oxygen combining with rocks and
minerals is called
Erosion
Oxidation

Can you guys please help me I’ll give y’all brainlest whatever it’s called I just started 6th grade and I’m new to this please help !?

Answers

Erosion because of the rock slides that can happen

"At an ice cream shop, customers pay $3.00 for a medium ice cream plus $0.75 per topping. At a second ice cream shop, customers pay $5.25 for a medium ice cream plus $0.25 per topping. How many toppings would a customer have to order for the ice cream to cost the same at either shop?"

Answers

Answer:hope this helps

0.75x + 3 = 0.25x + 5.25

Constants are $3 and $5.25 respectively

Topping costs $0.75 and $0.25 respectively

To have same cost the toppings number would be different as cost is different.

Suppose the number of toppings is x in one shop and y in the other, then the spending if same, we get this equation:

0.75x + 3 = 0.25y + 5.25

Constants are $3 and $5.25 respectively

help me with this please

Answers

Negative minus negative greater negative get rid of the ()

what is three plus three

Answers

Answer:

6

Step-by-step explanation:

Because 3 plus 3 is 6

6

3 + 3= 6 everyone knows this, not everyone but mostly everyone

Which graph best represent the solution to this system of inequalities? 2x ≤ y – 1
2x – 5y ≤ 10

Answers

we can’t really answer the question because we need to see the graph but I tried doing my research and it’s maybe A

Evaluate the expression:
3(a + b - 3) - 2(2a + b - 4) when a = -1 and b = 1

Answers

Answer:

1

Step-by-step explanation:

What early human development was necessary for survival in cold environments?

A finding shelter in caves
B banding together in clan groups
C wearing wool clothing for warmth
D creating language to communicate

Please: It is not C, so do not bother with that. I checked several others and people have different answers. If it right, i will mark brainliest

Answers

I thought it would be c but try b or a
(A) finding shelter in caves that’s where they also developed a form of illustration by drawing on caves

The table shows the changes in the times (in seconds) of four teammates. What is the mean change? Write your answer as a decimal. -2.43, -1.85, 0.61, -1.45

Answers

I’m about to answer give me one sec

Simplify by using order of operations: 4 + (9∙2) ÷ (4 - 1) - 4

Answers

Answer:

20

Step-by-step explanation:

Use PEMDAS

P = parenthesis

E = Exponents

M = Multiplication*

D = Division*

A = Addition**

S = Subtraction**

*either can come first, it just depends which comes first in the equation.

**either can come first, it just depends which comes first in the equation.

Step 1 : Write equation   4( 9 × 2 ) ÷ ( 4 -1 ) - 4

Step 2: Solve in parenthesis   4(18) ÷ (3) - 4

Step 3: Solve multiplication   72 ÷ 3 - 4

Step 4: Solve division               24 - 4

Step 5 : Solve subtraction         20

The simplified answers is -22.

What is order of operation?

The order of Operations is the rule in math that states we evaluate the parentheses/brackets first, the exponents/the orders second, division or multiplication third (from left to right, whichever comes first), and the addition or subtraction at the last (from left to right, whichever comes first). In math, there might be several operations to be done while evaluating an expression, and simplification at the end yields different results. However, we can only have one correct answer for any sort of expression. To identify the correct answer we simplify any given mathematical expression using a certain set of rules. These rules revolve around all the basic operators used in maths. Operators such as addition (+), subtraction (-), division (÷), and multiplication (×).

The order of operation can be termed as BODMAS.

Given:

4 + (9∙2) ÷ (4 - 1) - 4

=4+ (18) / (3)- 4

=22 / -1

=-22

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What is the constant proportionality?

Answers

Answer:

The constant of proportionality is the constant value of the ratio of two proportional quantities x and y, typically the equation is Y=KX. ... The constant of proportionality does is, the value of Y is dependent on how the given value of X is effected by the constant of proportionality.

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Constant of proportionality means slope which can be represented as y=mx+b, y=kx and a ton of other stuff I don't know.

But lets take it as y=kx because it's easier. Constant of proportionality/slope is k so its C, 5.5.

9 x 10^-9 in standard form

Answers

Answer:

[tex]9^{1000000000}[/tex]

Step-by-step explanation:

Jon answered 20 questions correctly on a 50-question test. Which does NOT
represent the part of the test he answered correctly?

Answers

Answer: .86

Step-by-step explanation: Percentages can represent sale prices, such as 20 percent off, success rates, such as getting 86 ... Enter the portion you are converting to a percentage in the calculator. ... For example, if there were a total of 50 question on the test, enter "50." ... For example, if a student got 43 out of 50 questions correct, your answer is .86.

Based on the sample standard deviation value, the
temperature each day during this time period varied by
about ✓ from the
of 38.11°F. If the
next recorded temperature is 56°F, the standard
deviation would

Answers

Answer:

3.66, mean, and increase

Step-by-step explanation

Answer:

3.66, mean, and increase

Step-by-step explanation:

As the heart beats, blood pressure increases and
decreases. This happens cyclically at the rate of the
person's heart beat. A doctor is monitoring the blood
pressure of a patient whose heart rate is 70 beats per
minute. The maximum blood pressure over the course of
a 10-minute period is 120 mm/Hg and the minimum is 60
mm/Hg.
Find a sine function that models the person’s blood pressure as a function of time (in minutes).

Answers

Answer:

A

Step-by-step explanation:

Got it right on edge2020

The sine function that models the person’s blood pressure will be f(x) = 30 sin(Πx/5) + 90.

What is a function?

Function is a relationship between two sets X and Y where Set X is called domain and set Y is called codomain.

For example f(x)= sin x+ cos x

We have,

The Blood pressure of patient with the heart rate = 70 beats/ minute

And,

In next 10 minutes,

The maximum blood pressure i.e. (a + d) = 120 mm/Hg

The maximum blood pressure i.e. (-a + d) = 60 mm/Hg

So,

Sine function works on;

f(x) = a sin(bx + c) +d

So,

Now,

Adding Maximum and Minimum blood pressure,

i.e.

(a+d)+(-a+d) = 120 + 60

⇒a + d - a + d = 180

⇒ 2d = 180

d =90

So,

NOw, substituting this value in maximum blood pressure,

i.e. (a + d) = 120

a + 90 =120

a = 30

we have time period = 10 minutes,

So,

2Π/b = 10

⇒ b = Π/5

So,

Count is started at 0.

So, c = 0,

Putting the above value,

f(x) = a sin(bx + c) +d

⇒f(x) = 30 sin(Πx/5 + 0) +90

⇒f(x) = 30 sin(Πx/5) +90

Therefore, the sine function that models the person’s blood pressure as a function of time (in minutes) will be f(x) = 30 sin(Πx/5) + 90.

Learn more about the modeling click here:

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A science club at Emily’s middle school has 25 members. Only 40% of the members attended Saturday meetings. What is the number of members that attended the Saturday meetings?

A. 6

B. 9

C. 10

D. 15

(Will give brainliest and a heart)

Answers

Hi! The answer would be 10.

My favorite way to solve problems like this is to use a calculator.

On your calculator you are going to do 25 times 0.40 which is the percentage converted into a decimal.

Whatever you get should be your answer! You can do this with other problems also!

I need help?? Not sure what I'm supposed to do here-

Answers

Draw six lines. Each goes through the central intersection and also through one of the dots on the right. I did two examples for you.

the sum of 17 and a number X is equal to 20​

Answers

Answer:

20 = x + 17

Step-by-step explanation:

Answer:

x = 3

Step-by-step explanation:

17 + x = 20

-17 -17

x = 3

A runner crossed the finish line at the time shown on the clock. The runners time was 2 hours and 45 minutes. What time did the race begin? Helppp quick plzzzzz I rlly need to fast tho

Answers

Answer:

12.00

Step-by-step explanation:

9:15 + 2 hours and 45 minutes =

(9:15 + 2) + 45 +

11:15 + 45 = 12:00

Hope This Helps

<3

A line with a slope of -2 passes through the point (-2,-3). What is the equation of this line?

Answers

Answer:

y = - 2x - 7

Step-by-step explanation:

Step 1:

y = mx + b      Slope Intercept Form

Step 2:

y = - 2x + b      Input Slope

Step 3:

- 3 = - 2 ( - 2 ) + b    Input x and y

Step 4:

- 3 = 4 + b       Multiply

Step 5:

- 7 = b      Subtract 4 on both sides

Answer:

y = - 2x - 7

Hope This Helps :)

m = -2

y = mx +c

-3= -2(-2) +c

-3 =4 + c , c = -7

Thus, equation is y = -2x-7

if we have a geometric series with u1 = 2.1 and r= 1.06, what would the least value of n be such that Sn > 5543?

Answers

Answer:

  88

Step-by-step explanation:

Write the expression for the sum in the relation you want.

  Sn = u1(r^n -1)/(r -1) = 2.1(1.06^n -1)/(1.06 -1)

  Sn = (2.1/0.06)(1.06^n -1) = 35(1.06^n -1)

The relation we want is ...

  Sn > 5543

  35(1.06^n -1) > 5543 . . . . substitute for Sn

  1.06^n -1 > 5543/35 . . . .  divide by 35

  1.06^n > 5578/35 . . . . . . add 1

  n·log(1.06) > log(5578/35) . . . take the log

  n > 87.03 . . . . . . . . . . . . . . divide by the coefficient of n

The least value of n such that Sn > 5543 is 88.

Evaluate the expression if a = -3, b = 64, c = 4, and d = 36.
4a? + 2c

Answers

Answer:

-4

Step-by-step explanation:

4(-3)+2(4)=-4

Please help. Will mark as Brainliest. ​

Answers

Answer: Choice A

Arithmetic, common difference = -10

==========================================

Explanation:

We subtract 10 from each term to get the next one

5-10 = -5

-5-10 = -15

-15-10 = -25

This is the same as adding -10 to each term

5+(-10) = -5

-5+(-10) = -15

-15+(-10) = -25

So this is why the common difference is -10 and the sequence is arithmetic.

I REALLY NEED HELP FOR SOLVING X!

(25 Points)

Answers

Answer:

105°

Step-by-step explanation:

25+50+x=180

75+x=180

x=105

Answer:

x = 105°

Step-by-step explanation:

sum of interior angles = 180

25 + 50 + x = 180

x = 180 - 25 - 50

x = 105°

help pls im so confused

Answers

the correct answer is c!
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