The sum of the ages of two brothers Is 37.7 years. The older brother is
7.9 years older than the younger brother. The line graphed on the
coordinate grid represents the first of two equations in a system of
linear equations that can be used to find their ages.
If the second equation is
x + y = 37.7, which value is closest
to x, the age of the older brother in
years?
Brothers' Ages
8
40
35
8
15
30
Younger Brother's Age
(years)
25
20
© 23
15
10
D 30
5
Х
0
5 10 15 20 25 30 35 40
Older Brother's Age
(years)
Answer:
40
Step-by-step explanation:
Find the value of x.
4
X
25
10
x = [?]
Answer:
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
10/4 x 25/x
Cross multiply and it will give you 100/10x
Divide and get 10
please help fill in these blanks
Answer:
1) 2
2)30
3)10
-Sumin <3
A chain of sports shops catering to beginning skiers, headquartered in Aspen, Colorado, plans to conduct a study of how much a beginning skier spends on her initial purchase and supplies. Based on these figures, to explore the possibility of offering combinations, such as a pair ofboots pair skis, induce customers to buy more. As of cash register receipts revealed these initial purchases:$85 $139 $161 $175 $85 $133 $149 $145 $136 131 290235 132 149 322 214 105 90 162 229 121 113 149 126139 118 156 214 172 87 172 230 195 126 128 142 118 139(a) Find the smallest class interval, use five classes.(b) What would be a better class interval?
Answer:
47.4 ;
50
Step-by-step explanation:
Given the data :
X ($) : 85 139 161 175 85 133 149 145 136 131 290 235 132 149 322 214 105 90 162 229 121 113 149 126139 118 156 214 172 87 172 230 195 126 128 142 118 139
The smallest class interval :
Range / number of classes
Number of classes to use = 5
Range = Maximum - Minimum = (322 - 85) =237
Hence, smallest class interval :
237 / 5 = 47.4
A better class interval would be, one without decimal, rounded to the nearest 10; this will be easier and make more statistical sense
Hence, smallest class interval rounded to the nearest 10 :
47.4 = 50 (nearest 10)
There is a total of 56 tiles.
(b) Work out the number of grey tiles.
PLEASE HELPPPPPP
Solve this equation after changing it to have a base of e: 30 (.93) ^ x = 20
Answer:
U2I282 88X29Z SMQ0J9WJ8D,E,F,BF
Step-by-step explanation:
In which table is y a linear function of x
Answer:
We conclude that the table C represents a constant change in x and y.
Hence, table C represents that y is a linear function of x.
Step-by-step explanation:
Here are some of the rules using which we can easily figure out the true nature of a function.
Linear Function:
The constant change in x and y
Quadratic Function:
The constant change in x
The constant 2nd differences in y
Exponential Function:
The constant change in x
The constant ratio in y
We have to find a table in which y is a linear function of x.
Checking the table C
x -1 0 1 2 3
y 6 8 10 12 14
Here:
There is a constant change in x.
i.e. 0 - (-1) = 1; 1 - 0 = 1; 2 - 1 = 1; 3 - 2 = 1
Also there is a constant change in y.
i.e. 8 - 6 = 2; 10 - 8 = 2; 12 - 10 = 2; 14 - 12 = 2
Thus, we conclude that the table C represents a constant change in x and y.
Hence, table C represents that y is a linear function of x.
what is the variable in the expression 3y+8
Which statement is NOT true in the equation y = 9x?
The value of y is 9 times the value of x.
The equation represents an additive relationship.
The value of y is 45 when the value of x is 5.
The equation represents a multiplicative relationship.
Answer:
dhdbdudbdudbdne d ieh eue
Answer: the equation represents an addictive relationship
Step-by-step explanation:
5. Select all the expressions that represent the area of the shaded rectangle.
A. 3(10 - c)
C
B. 3(c - 10)
3
C. 10(0 - 3)
D. 10(3-0)
10
E. 30 - 30
F. 30 - 100
Answer:
Step-by-step explanation:
what shaded rectangle?
Solve for “x” x+2 1/2=10.
Answer:
x = 7.5
Step-by-step explanation:
x + 2 1/2 = 10
Subtraction Property of Equality
x = 7 1/2 as a mixed number = 15/2 as an improper fraction = 7.5 in decimal form
I usually prefer decimal form
PLS HELP WILL GIVE BRAINLIEST AND 50 POINTS IF YOU GIVE FAKE ANSWER I WILL REPORT YOU!
The graph shows the relationship between the number of months different students practiced tennis and the number of matches they won:
The title of the graph is Tennis Matches. On the x-axis, the label is Number of Months of Practice. On the y-axis, the label is Number of Matches Won. The scale on the y axis is from 0 to 22 at increments of 2, and the scale on the x-axis is from 0 to 12 at increments of 2. The points plotted on the graph are the ordered pairs 0, 2 and 1, 5 and 2, 8 and 3, 9 and 4, 10 and 5, 12 and 6, 13 and 7, 16 and 8,17 and 9, 18 and 10,20. A straight line is drawn joining the ordered pairs 0, 3.3 and 2, 6.8 and 4, 10 and 6, 13.5 and 8, 17 and 10, 20.5.
Part A: What is the approximate y-intercept of the line of best fit and what does it represent? (5 points)
Part B: Write the equation for the line of best fit in the slope-intercept form and use it to predict the number of matches that could be won after 13 months of practice Show your work and include the points used to calculate the slope. (5 points)
First we have to understand that a Y-intercept of a line is the point where a line’s graph intersects or crosses the Y-axis. In this case we will need to look at the graph in order to find the Y-intercept. Looking at the graph I would say that the Y-intercept is (0,3.5).
For part B you can use the following:
y = m x + b
y = (7/4) * 13 + 3
26 Is your answer
Goodluck
:):
Notes:
A Percent is the____
of a number to 100. Percents can be expressed _____
with a denominator of 100.
as
Answer:
1. RATIO
2. ONLY
I Hope This Helps You.
Chicken costs $3.20 per pound, and beef costs $4.59 per pound. What is the exact cost of 3 pounds of chicken?
Answer:
$9.60
Step-by-step explanation:
3.20x3=9.60
Rewrite the function f (x) =3(x-1)^2-2 in the form f(x) = ax²+bx+c.
Answer:
3x^2-6x+1
Step-by-step explanation:
According to order of operations, you do exponents before multiplying. So, (x-1)^2=x^2-2x+1, then you multiply it by 3. Lastly, you subtract by 2.
PLEASE HELP!! WILL MARK BRAINLIEST!! DONT GUESS :)
anyone very good in math and wanna helpppp me?
What is the distributive property of 35y + 49
Answer:
7(5y+7)
Step-by-step explanation:
7×5y=35y
7×7=49
so its 7(5y+7)
A chemist needs 40 liters of a solution that is 20% acid for a certain experiment, but she has
only a solution that is 15% acid and a solution that is 40% acid. How many liters of the 15% and
the 40% solutions should she mix to get what she needs?
Which of the following best completes this excerpt?
A. equal pay
B.own property
C.a public education
D.vote
Answer:the answer is vote
The most controversial claim was Right to vote.
What are fundamental Rights?A group of rights known as fundamental rights have received extensive protection from infringement. These rights have either been determined via the application of due process of law or are expressly stated in a constitution.
Given:
According to declaration of rights and sentiments
It proclaimed that “all men and women are created equal” and resolved that women would take action to claim the rights of citizenship denied to them by men.
The Declaration of Sentiments declares that all men and women are created equal and that each has the unalienable rights to life, liberty, and the pursuit of happiness.
So, the most important claim was Right to vote.
Learn more about fundamental Rights here:
https://brainly.com/question/1261546
#SPJ6
Natalie completed 56 sit-ups. Natalie completed 4 times as many sit-ups as Matthew. How many sit-ups did Matthew complete?14 sit-ups
24 sit-ups
52 sit-ups
224 sit-ups
Answer:
224 sit-ups
Step-by-step explanation:
multiply 56 by 4
Original price of a sled: $99.50
Discount: 50%
Answer:
49.75
Step-by-step explanation:
1/2 (50%) of 99.50 is 49.75
Зх - у = 2
What is the y corddinate
Answer:
y=3x-2
Step-by-step explanation:
Answer:
the y is -2
Step-by-step explanation:
wyaggsgssgsgs
craig has a coin and a number cube.The number cube is labeled 1-6.He flips the coin once and rolls the number cube once.What is the probability that the coin lands heads up and the number cube lands on an odd number
Answer:
3/12
Step-by-step explanation:
ASAP PLS MARKING BRAINLIEST PLSSSSS
which is the closest to the quotient 4367/0.004
Answer:
1091750
Step-by-step explanation:
if your dividing
Which are corresponding angles
Answer:
oposite to its angle when they are parallel
BRAINLIEST Write an equation that represents the line
Use exact numbers
Answer: Steep. Its 50% steep.
The graph below shows a linear representation of a jogger’s heartbeat in beats per minute, as his speed is increased (in feet per second). What is the slope of the line?
Answer:
The slope is 3.75 OR 3 3/4.
Step-by-step explanation:
So the formula for slope I am using NOW, is based on the variables I named my dimensions. WARNING: NOT SLOPE FORMULA YOU MIGHT BE USING
y = 95 - 80
x = 10 - 6
Slope Formula: y/x
Substituted Slope Formula: (95 - 80)/(10 - 6)
Simplified Substituted Slope Formula: 15/4 OR 3.75
Hope this helps!!
The slope of the given linear equation is 3.75.
Given that, the graph given shows a linear representation of a jogger’s heartbeat in beats per minute, as his speed is increased (in feet per second).
What is a linear equation?A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation.
From the given graph we have the coordinates (6, 80) and (10, 95).
The slope of an equation = (y2-y1)/(x2-x1)
=(95-80)/(10-6)
=15/4
=3.75
Therefore, the slope of the given linear equation is 3.75.
To learn more about the linear equation visit:
https://brainly.com/question/13738061.
#SPJ2
Mark wants to buy a new pair of shoes that cost $95. He has $20 and plans to save $5 each week. How many weeks will it take him to save the money?
Answer:
it would take him 15 weeks
Step-by-step explanation:
cost of shoes= 95
he has 20 so 95-20= 75
he needs 75 more dollars so 75 divided by 5= 15 weeks