Integers are numbers that can be written as positive values or negative values.
A deposit of $40 is written as 40 as an integer.
A loss of 25 pounds is written as -25 as an integer.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example:
2 + 3x + 4y = 7 is an expression.
3 - 4 x 5 + 4 is an expression.
We have,
Integers are numbers that can be written as positive values or negative values.
1. A deposit of $40
Deposits mean adding more money into the account so it will be a positive value.
This can be written as an integer as,
= 40
2. A loss of 25 pounds
Loss means subtracting from the total pounds.
This can be written as an integer as,
= -25
We see that,
40 and -25 are integers.
Thus,
A deposit of $40 is written as 40 as an integer.
A loss of 25 pounds is written as -25 as an integer.
Learn more about expressions here:
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Juanita constructed a number line to test her brother’s understanding of opposites. She tested him on all points that were labeled with letters. Her brother had trouble representing the opposite of point A.
Which represents the opposite of Point A?
Negative (negative 10)
Negative (negative 5)
0
Negative (10)
Answer:
-(10)
Step-by-step explanation:
Answer:
negative (negative 10) is the answer.
Step-by-step explanation:
I NEED HELP ASAP PLEASE
Matilda and Kathryn went on different road trips over spring break.
The equation below represents the number of miles Matilda drove in x hours.
y = 64x
The table below shows the number of miles Kathryn drove in x hours.
Time
in hours)
2
4
6
Distance
(in miles)
110
220
330
440
8
Who drove at a greater speed?
OA
Kathryn drove at a greater speed.
ОВ.
Matilda drove at a greater speed.
OC.
There is not enough information to determine their speeds.
OD
Matilda and Kathryn drove at the same speed.
Answer: The answer is D
Matilda drove at a greater speed
Step-by-step explanation: Just took the test on study island
21.6 Computer use. A random sample of 197 12th-grade students from across the United States was surveyed, and it was observed that these students spent an average of 23.5 hours on the computer per week, with a standard deviation of 8.7 hours. If we plan to use these data to construct a 99% confident interval, the margin of error will be approximately (a) 0.07. (b) 0.62. (c) 1.6. (d) 8.7.
Answer:
(c) 1.6
Step-by-step explanation:
Calculation for what the margin of error will be approximately
First step is to calculate Total hours spent
Total hours spent = (197 * 23.5 hours)
Total hours spent =4,625 hours
Second step is to find the square root of the sample size
Sample size=√197
Sample size=14.04
Third step is to divide the Standard deviation of 8.7 hours by square root of sample size of 14.04
= 8.7 hours /14.04
= 0.6196
Fourth step is to use the Z table to find Z value at 99% confidence
Z value at 99% confidence = 2.58
Last step is to calculate the Margin of error
Margin of error = 0.6196 * 2.58
Margin of error = 1.59857
Margin of error= 1.6 (Approximately)
Therefore what the margin of error will be approximately is 1.6
Two less than three times a number is equal to 19. What is the number?
The best way to approach a word problem like this
is to break it down into pieces, so we can understand it fully.
In this problem, we have a number, which we don't know.
We can use any variable to represent it.
So let's use the variable n to represent it.
"Two less than three times a number" means 3n - 2.
A common mistake is for students to put 2 - 3n.
However, the word "less than" switches the order around.
So we have 3n - 2 = 19.
Solving from here, we add 2 to both sides to get 3n = 21.
Now divide both sides of the equation by 3 and we have n = 7.
So the number is 7.
Kevin went fishing and is using a scatterplot to analyze the relationship between the weight of each of the fish he caught in pounds and in kilograms. He uses the weight in pounds as the independent variable and the weight in kilograms as the dependent variable. Which statement is correct?
The points on the scatterplot will go up from left to right because as the weight in pounds increases, the weight in kilograms increases.
The points on the scatterplot will go up from left to right because as the weight in pounds increases, the weight in kilograms decreases.
The points on the scatterplot will go down from left to right because as the weight in pounds increases, the weight in kilograms increases.
The points on the scatterplot will go down from left to right because as the weight in pounds increases, the weight in kilograms decreases.
Answer:
The answer is A.The points on the scatter plot will go up from left to right because as the weight in pounds increases, the weight in kilograms increases, because when the pounds (lbs.) increases, the kilograms (kg.) increase.
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
just did the quiz and got it right
-1(-2)(-3)(-3)
please answer im so confused
Evaluate the expression 4² -3.4+ 7
Answer:
19.6
Step-by-step explanation:
there
There are49 students on a tour.Each guide can take 5 students.How many guides are needed?Explain.
i need help with this please! will give brainiest if answered correctly
Answer:
The correct answer is B. 0.75.
Step-by-step explanation:
In order to solve this problem, we just need to add the probabilities of all the age groups that include 35-64.
35-44 Age Group Probability: 0.14
45-54 Age Group Probability: 0.29
55-64 Age Group Probability: 0.32
0.32 + 0.29 + 0.14 = 0.75
Therefore, the correct answer is B. 0.75.
Hope this helps! :D
In ΔKLM, l = 2.4 inches, m = 4.2 inches and ∠K=159°. Find the length of k, to the nearest 10th of an inch
Answer:
sorry
Step-by-step explanation:
Find the shaded area. Use 3.14 as the approximate value of pi.
Answer:
164.73 cm²
Step-by-step explanation:
Area of the shaded area = area of semi-circle - area of the triangle
Area of the semi-circle:
Area = ½(πr²)
r = ½ of 34 = 17 cm
π = 3.14
Area = ½(3.14 × 17²)
Area = 453.73 cm²
Area of the triangle:
Area = ½*b*h
b = 34 cm
h = 17 cm
Area = ½ × 34 × 17
Area = 289 cm²
Area of the shaded area = 453.73 - 289 = 164.73 cm²
i need some help here
Answer:
the answer above is correct
Answer:
boxes
7
8
58.1
119.7
Step-by-step explanation:
look when u solve this it equals
8.3(7)+7.7(8)=119.7 but it tells u to add 61.6 so u go backwards subtract
119.7-61.6
58.1
just plug in
8.3(7)+7.7(8)=____+61.6
plug in
58.1+61.6
119.7
4 x 13 on distributive property
Answer: 52
Step-by-step explanation:
how do you
find the exact value of each
variable that represents a side length in a right triangle
So I need help with this. Why Do we seat?
Answer:
When we stand our muscles are working a little bit, and if we're moving around, our muscles are working even more, so we sit down to take a little bit of a break, but the problem starts when we sit down for too long. ... If we sit for too long, it's not good for our heart.
Step-by-step explanation:
hope this helps
Which of the following can be epressed as repeating decimals?
3/8 and 5/6
2/9 and 5/6
2/9 and 5/4
3/8 and 5/4
Answer:
2/9 = 0.222 (this is repeating) 3/8 = 0.375 -- not repeating 5/6 = 0.83333 (this is repeating) 5/4 = 1.25 -- not repeating answer is : 2/9 and 5/6
Step-by-step explanation:
35 - 35 +9:3)
+7
What is the answer do you know?
Answer:
35-35+9.7+735+9.7+7-3516.7Pls help me I am d$mb...
Answer:
ur not domb
Step-by-step explanation:
Kyoko is reading a book by her favorite author. She read the first 20 pages in One-half of an hour. Reading at the same pace, Kyoko wants to determine if she’ll have enough time to finish the book before she has to go to bed.
Answer:
It will take her 3 hours and 120 pages
Step-by-step explanation:
It was on edge pls mark brainliest
Answer:
b
Step-by-step explanation:
An airplane is descending in preparation for a landing at an airport. The height, h, in meters of the airplane above the ground level of the airport is a linear function of time, t, where t is the number of minutes
after the plane started to descend. The plane was 3,915 meters above the ground level of the airport 2 minutes into the plane's decent and was 2,025 meters above after 9 minutes. How long will it take the
plane to land at the airport after it started to descend? (1 point)
O 16 minutes
O 7.5 minutes
16.5 minutes
14.5 minutes
Answer:
16.5 minutes
Step-by-step explanation:
Trust
Answer:
16.5 :)
Step-by-step explanation:
im brilliant of course
14x + 6 = 2(5+7x) please help me
Answer:
14x+6= 10+14x
14x-14x= 10-6
x= 4
Step-by-step explanation:
x= 4
How many solutions does this equation have?
x + 3 = 2x + 4
A.
Infinite solution
B.
Two solution
C.
One solution
D.
No solution
Answer:
C
Step-by-step explanation:
How do you write this in a expression?please answer quick (take away a number n from 24)
Answer:
24-n
Step-by-step explanation: hope this helps if it does pls give brainliest tysm!
Answer:
24-n
Step-by-step explanation: we taking away so that is substraction.
A Zookeeper has 8 frogs. Each frog eats cups of food 3/4. How much food does the zookeeper need in total?
Answer:
6 cups
Step-by-step explanation:
8 x 3/4 = 6 I used a calculator
which of the following angles are supplementary to <2?
Consider ΔDEF with centroid at point G and median EH. What is GH, if EG=3x+4 and GH=x+10?
Answer:
gh = x+9
Step-by-step explanation:
A) -165 °
B) -125 °
C) 125 °
D) 165 °
Answer:
it might be B, but dont trust me on this one because im not so sure.
Step-by-step explanation:
srry i just dont do this yet i havent rlly learned this but ik a bit abt it so yea. have a great night !
A sample survey was taken of 100 students to determine which of three homecoming themes students prefer
Answer:
c
Step-by-step explanation:
4 white marbles, 6 yellow marbles, 9 green marbles
Answer:
4 white marbles 6 yellow marbles and 9 green marbles
The crew of a garbage truck takes 5 hours to empty all the bins in one neighborhood on pickup day. The city assigned a second garbage truck to this neighborhood. During their training, it took the crew from the second truck 8 hours to empty all the bins. when the two crews start working together, what part of all the garbage bins will the first garbage truck empty?
Answer:
0.6
Step-by-step explanation:
Answer:
A. 0.6
Step-by-step explanation: