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?
a. 8
b. 15
c. 23
d. 30
Answers
Answer: 15
Step-by-step explanation: because 7.5 is in the middle of 5 and 10 and it goes straight down to 15
Related Questions
PLS HELP- Richard and Teo have a combined age of 33. Richard is 15 years older than twice Teo's age. How old are Richard and Teo?
Answers
Answer:
Teo= 9
Richard= 24
Step-by-step explanation:
x= Richard
y= Teo
33-15= 18
18÷2= 9
15+9=24
Teo is 6 years old and Richard is 27 years old.
What is the equation?The equation is defined as a mathematical statement that has a minimum of two terms containing variables or numbers that are equal.
Let x be Teo's age, then Richard's age is 15 years older than twice Teo's age, or 15 + 2x. The combined age of Richard and Teo is 33, so we can write an equation:
x + (15 + 2x) = 33
Simplifying and solving for x, we get:
3x + 15 = 33
3x = 18
x = 6
So Teo is 6 years old and Richard is 15 + 2(6) = 15 + 12 = 27 years old.
Learn more about the equations here:
brainly.com/question/10413253
#SPJ2
Iĺl mark brainlist
Find the unknown side length, x. Write your answer in simplest radical form.
A. 4√32
B. 22
C. 16√5
D. 16√13
Answers
Answer:
C. 16√5
Step-by-step explanation:
a squared plus b squared equals c squared!
Written as a simplified polynomial in standard form, what is the result when
(x - 2)^2is subtracted from 9x^2-8x?
Answers
Answer:
9x^2 - 10x -4
Step-by-step explanation:
It is set up like this
9x^2 - 8x
- (x-2)2
First solve (x-2)2
the answer is (2x-4)
so now you can do this instead
9x^2 - 8x
- 2x - 4
----------------------------------
9x^2 - 10x +4
9x^2 minus zero is 9x^2
-8x-2x is -10x
0- -4 is 4 because that is like saying 0 + 4 because double negatives equal a positive
A simpler way is to change all the numbers to the opposite sign and then change the minus to a plus
like this
9x^2 - 8x
+ -2x + 4
----------------------------------
9x^2 - 10x +4
Answer:
8x^2-4x-4
Step-by-step explanation:
On delta math
what is half of 3/4 teaspoon?
Answers
Answer:
One half of 3/4 teaspoon is equal to 3/8 or 0.375 teaspoons. One method of finding the answer in the fraction form of 3/8 is to multiply the fraction 1/2 by 3/4 : )
Step-by-step explanation:
One half of 3/4 teaspoon is equal to 3/8 or 0.375 teaspoons.
Here, we have,
given that,
what is half of 3/4 teaspoon
One method of finding the answer in the fraction form of 3/8 is
to multiply the fraction 1/2 by 3/4 ,
or, we can divide 3/4 by 2
i.e. 1/2 × 3/4
as, half = 1/2
so, we get,
=> 3/ 2×4
=> 3/8
=>0.375
Hence, One half of 3/4 teaspoon is equal to 3/8 or 0.375 teaspoons.
Learn more about the Division here:
brainly.com/question/22357901
#SPJ6
y-(-3y) combine the like terms to create an equivalent expression
Answers
Answer: 4y
Step-by-step explanation:
Distribute the negative sign to get rid of the parentheses
y+3y = 4y
Graph the image of the figure using the transformation given.
(its multiple choice!)
Answers
The original image undergoes reflection across x=-3.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
In the given graph DEFG is the original image.
D'E'F'G' is the new image after the transformations applied.
A reflection is defined by the axis of symmetry or mirror line. In the above diagram, the mirror line is x = -3.
Under reflection, the shape and size of an image is exactly the same as the original figure.
This type of transformation is called isometric transformation.
Hence, the original image undergoes reflection across x=-3.
To learn more on Graph click:
https://brainly.com/question/17267403
#SPJ5
Solve by completing the square. x^2-10x-5=28
Answers
Answer:
Hey THERE
x=5+√58 or x=5−√58 is the answer
Step-by-step explanation:
x2−10x−5=28
Answer: look at the picture
Step-by-step explanation: hope this help :)
Two flag poles at Liberty Park are 27 feet tall. The distance from the top of one flag pole to the base of the other is 45 feet. What is the distance between the two flag poles?
Answers
Answer:
Step-by-step explanation:
Answer:
The distance between the two poles is 36 feet.
Step-by-step explanation:
If 2 flag poles are 27 feet tall each
if the distance from one flag pole to the base of the other flag pole is 45 feet, this forms the shape of a right angle triangle.
Here, we are going to make use of the Pythagoras theorem.
a2 + b2 = c2
27 2 + b2 = 45 2
b2 = 45 2 - 27 2
b = 45 2 - 27 2 (square root)
b = 2025 - 729
b= 1296 (square root)
b = 36
write an equation of the line that passes through the points (0,3) and (2,11)
Answers
Answer:
y=4x+3
I used the formula: y=mx+b
What is the solution set of –|x| = –8?
{8}
{–8}
{–8, 8}
no solution
Answers
Answer:
its c -8,8
Step-by-step explanation:
HELPPPPP MEEEE PLZZZ
Which statement about inequalities is NOT true?
A. An inequality may have integer and rational solutions.
B. An inequality may have positive and negative solutions.
C. If a < b, then b > a.
D. if a < b, then b < a.
Answers
Answer:
D
Step-by-step explanation:
if a<b,then b<a is the answer
The soccer club held a spaghetti dinner. They sold 39 child tickets for $3.75 each and 27 adult tickets for $5.95 each. The amount for 11 child tickets was refunded. Estimate the amount of income received by the soccer club.
Answers
Answer:
265.65
Step-by-step explanation:
(3.75*39)+(27*5.95)-(11*3.75) = 265.65
Simplify 5x ax 5 x a
Answers
Answer:2.a
Step-by-step explanation:
what is the area of a circle with a radius of 4 inches?
Answers
Answer: A≈50.27in²
What is the missing length?
Answers
Answer:
12.1
Step-by-step explanation:
to doublecheck times it 8 to see if you get 96.8
When adding two mixed numbers, you should add the ignore the fractions and add the mixed numbers first.
True
False
Answers
Answer:
FALSE
.....
I think?
Louis invested £2950 in a savings account for 5 years.
He was paid 1.9% per annum compound interest for each of the first 4 years.
He was then paid R% interest for the fifth year.
Louis had £3257 in his savings account at the end of the 5 years.
Work out the value of R.
Give your answer correct to 1 decimal place.
Answers
Answer:
2.4%
Step-by-step explanation:
The value of R is, 2.4%
What is Simple interest?A quick and easy method of calculating the interest charge on a loan is called a Simple interest.
Given that;
Louis invested £2950 in a savings account for 5 years.
He was paid 1.9% per annum compound interest for each of the first 4 years.
And, He was then paid R% interest for the fifth year.
Louis had £3257 in his savings account at the end of the 5 years.
Here, We know that;
⇒ Compound interest formula = Capital × (1 + r%) ⁿ
Where, n is time in years.
So, We can formulate;
⇒ £2950 × (1 + 0.019)⁴
⇒ £3180.67
And, For calculate R;
⇒ £3180.67 × (1 + R%)⁵ = £3257
⇒ R = 2.4%
Learn more about the simple interest visit;
https://brainly.com/question/2294792
#SPJ5
11 The table below shows the amount of a decaying
radioactive substance that remained for selected
years after 1990.
0
2
5
9
14
17
19
Years After 1990 (X)
Amount (9)
750
451
219
84
25
12
8
Write an exponential regression equation for this
set of data, rounding all values to the nearest
x thousandth. Using this equation, determine the
amount of the substance that remained in 2002, to
the nearest integer.
Answers
A business named Beyond Boxes is considering adding a box in the shape of a triangular prism as shown.
5 cm
4 cm
8 cm
3 cm
How much cardboard will be needed to make this design?
A. 108 cm2
B. 96 cm
C. 76 cm?
D. 102 cm
Answers
Answer:
creo que es 4cm y la otra B no se por que esta en ingles ok
3(x-10)+7=10 then x is?
Answers
Answer:
x = 11
Step-by-step explanation:
3(11 - 10) + 7 =
3 + 7 = 10
hope this helped
Help me, correct answers appreciated
Answers
Answer:
No
Step-by-step explanation:
-6 is X
-10 is Y
-10 is smaller than - 8
-10 is smaller than -8
-6 is greater than -8
So therefore -6 is the answer
What is the volume of a cylinder with radius 6 and height of 4. Use 3.14 for pi
Answers
PLEASE PLEASE HELP THE OTHER BRAINLY ANSWERS WERE WRONG IM BEING TIMED
A _____ organizes lots of information into tidy categories, but does not necessarily show a clear relationship among them.
pie chart
pictograph
table
line graph
bar graph
Answers
Answer:
A table?
Step-by-step explanation:
fingers crossed this is right
Please simplify I need the extra credit all answers get brainiest.
Answers
Answer:
3/10a^15b^7c^4
Step-by-step explanation:
sorry its kinna hard to explain
please help me with this
Answers
Answer:
a=8/2 b=9/4 c=13/5
PLEASE HELP!!!!
Which of these shapes is congruent to the given shape?
ОА
ов.
О С.
OD
Answers
The shape congruent to given figure is Figure 4.
Option D is correct.
What is congruency?Congruent figures have sides that are the same length and angles that are the same measurement. In other terms, two figures are said to be congruent when they are superimposed upon one another. Even when they are flipped or rotated, they perfectly fit on top of one another.
We have a figure which is similar to parallelogram.
First, figure is seems to be rectangle and do not have same unit measurement which is not Congruent.
Now, the second has more width than given figure.
Now, Third figure is also a rectangle and cannot be congruent.
Now, the fourth figure is similar to given figure.
Learn more about Congruency here:
https://brainly.com/question/7888063
#SPJ7
Determine whether ABCD is a parallelogram if AB = 6, BC = 12, CD = 6, and DA = 12. Justify your answer
A/ Yes; Opposite sides are congruent to each other.
B/ Yes; Opposite sides are parallel to each other.
C/ Yes; Opposite angles are congruent to each other.
D/ No
Answers
There are 48 grapes in a bag. Four friends are sharing the grapes.
Enter an equation that can be used to find out how many grapes g each friend will get If each friend gets
the same number of grapes.
The equation is ?
Answers
48 divided by 4
Step-by-step explanation:each freind gets 12 grapes
_____% of 145 = 75
48.3%
193.3%
76.5%
51.7%
Answers
Answer:
51.7%
Step-by-step explanation:
P x 145 = 75
P = 75 / 145
P = .5172
P = 51.7%
Have a nice day! <3
Which relation is a function?
{(3, 4), (2, 4), (5, 1), (3, 5)}
{(1, 4), (1, 3), (1, 2), (1, 1)}
{(1, 3), (2, 6), (3, 9), (4, 12)}
{(3, 4), (3, 3), (1, 2), (1, 5)}
Answers
Answer:
its 1
Step-by-step explanation:
look it up big dig daddy
explanation:
for it to be a function an x-value can never be the same. so therefore it’s the 3rd one.