The age of father and son is 40 years and 10 years respectively.
What is Algebra?Algebra is the branch of mathematics that helps in the representation of problems or situations in the form of mathematical expressions. It involves variables like x, y, z, and mathematical operations like addition, subtraction, multiplication, and division to form a meaningful mathematical expression. All the branches of mathematics such as trigonometry, calculus, coordinate geometry, involve the use of algebra. One simple example of an expression in algebra is 2x + 4 = 8.
given:
Father is 30 years older than his son.
sum of their ages= 50 years
let the age of son is x
age of father= x+ 30
Now,
x + x + 30= 50
2x = 20
x= 10
hence, age of father is 40 and age of son is 10 years.
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In ΔGHI, g = 9.8 cm, h = 1.6 cm and i=9.2 cm. Find the measure of ∠I to the nearest degree.
Answer: 64
Step-by-step explanation:
Answer:64
Step-by-step explanation:
What is the slope of the line shown?
Answer:
- [tex]\frac{1}{4}[/tex]
Step-by-step explanation:
( [tex]x_{1}[/tex] , [tex]y_{1}[/tex] )
( [tex]x_{2}[/tex] , [tex]y_{2}[/tex] )
m = [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]
~~~~~~~~~
( - 2, 6 )
( 2, 5 )
m = [tex]\frac{6-5}{-2-2}[/tex] = - [tex]\frac{1}{4}[/tex]
Answer: y = -1/4x + 5.5
Slope formula is as follows: m = y2 - y1 / x2 - x1
7 - 6 / - 2 + 6
Since our line goes down we have a negative slope.
This gives us a slope of: m = - 1/4
The last number in our slope formula states how high/low we start on the y axis. Looking at our graph im assuming we start at 5.5
DIRECTIONS: Use this information to answer Parts A and B. Rosa earns $12.25 per hour working at an ice-cream shop. Part A Write an equation that shows Rosa's earnings e, in dollars, for h hours of working at the ice-cream shop. Enter the correct answer in the box.
Answer:
$12.25h=e
Step-by-step explanation:
Can Someone help pls?
Answer:
It should be 6.5 becaue 11-4.5=6.5
The answers are x=11-4.5
and x+4.5=11
Step-by-step explanation:
Answer:
11 I guess
Step-by-step explanation:
:3
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1 If 3n + 7 = 25, then find the value of the expression 8n - 3
2 In ∆ DEF and ∆ XYZ, DE = XY, angle E = angle Y and EF = YZ. Name the test of congruency by which both the triangles are congruent.
3 The equation for the statement ‘The sum of seven times m and
fourteen gives 77’ is ________.
4 The base of a triangle is 18 cm and its area is 36 sq. cm. The height of
the triangle is _______ cm.
5 If two triangles are congruent under the correspondence P ↔ Y , Q ↔Z , R ↔ X , then it can be said that ∆ PQR ≅ _______
Answer:
1) 45
2) SAS (Side Angle Side)
3) 9
4) 4
5) Triangle YZX
6) 63 degrees
Step-by-step explanation:
A snail crawls 2 3/4 inches in one minute . How far can it travel in 3 1/2 minutes?
Answer: 5/6 inch/minute
Whenever you are working with a question of rate where two different quantities are being compared, the required units will indicate which quantity is to be divided by which.
In this case you want to know inches per minute.Therefore:
5
8
inches
÷
3
4
minute
5
8
÷
3
4
=
5
8
×
4
3
←
multiply by the reciprocal
=
5
8
2
×
4
3
=
5
6
Geometry help please.
Difference of 20 and a number , r
Answer:
2--r
Step-by-step explanation:
1. Why should you plan for retirement now? Use 2-3 complete sentences
Find the value of x.
As we can see here that a straight line is fallen on a line so we can say that these angles are linear pair
There fore
31⁰ + x + 4⁰ = 180⁰
x + 35⁰ = 180⁰
x = 145⁰
Hope it helps u mate
Suppose giving an isosceles triangle with a leg of 5 m two lines are drawn at some point on the base each parallel to one of the legs.Find the perimeter of the constructed quadrilateral
Answer:
10
Step-by-step explanation:
im assuming that its an equalateral triangle because it makes the problem easier.
if you use the midpoint of the base as the point of where to make the parallels lines and draw them, you can easily find 4 congruent triangles, the side length of one of these congruent triangles is 2.5, and summing up the perimeter of the quadrilateral, you get 10.
Casey bought 9 tickets to a concert. After a $5 service charge, the total cost was $131. Write and solve an equation to find the cost of each ticket.
please explain
Answer: 14
Step-by-step explanation:
131 (total cost of tickets)- 5 (service charge) = 126 cost of tickets
126/9= 14 dollars a ticket
(c= cost)
131-5=c
126/9=14
Hope this helped
A brand of uncooked spaghetti comes in a box that is a rectangular prism with a length of 8 inches, a width of 2 inches, and a height of 1 1/2inches. What is the surface area?
Answer:
24 sq inches. Hope this helps :)
Step-by-step explanation:
HELP PLEASE !!!!!
Practice Problem #1: The junior high basketball team played ten games. Find the standard deviation for the number of baskets scored by the team for the ten games: 8,4, 6, 6, 7, 7, 9, 4, 8,5. Number: Difference From the mean: Difference from the mean-2: Sum of(difference from the mean: A: Mean B:n_ C: Sum of (Difference from the Mean) 2 divided by (n): _= variance. D: Standard deviation = square root of variance. Standard deviation
Answer:
standard deviation=2.94
Did I choose the correct option? If not, explain please.
Answer:
nope look it up, an identy matrix is
one zero zero
zero one zero
zero zero one
WILL GIVE BRAINLIEST
Answer:
OK where is the qûestion
Mr. Flynn had 32 markers in his classroom. He buys new boxes of markers that have 9 markers in each box. Now, he has 86 markers. How many new boxes did he buy?
x²+4x+20=0
a=1 b=20 c=4
a=1 b=4 c=-20
a=1 b =4 c = 20
a=1 b=-4 c=0
2x²+6x+5=0
-2x²+x+5 identify the coefficients
Step-by-step explanation:
The general form of the quadratic equation is :
[tex]ax^2+bx+c[/tex]
The given equation is x²+4x+20=0
On comparing the given equation and the general equation, we find that
a = 1, b = 4 and c = 20
Hence, the correct option is a=1 b =4 c = 20.
If the equation is 2x²+6x+5=0, then
a = 2, b = 6 and c = 5
If the equation is -2x²+x+5
a = -2, b = 1 and c = 5
How many ice cream balls are obtained when the ice cream mass is 2 liters and the diameter of one ball is 5 cm?
Answer:
there ar 3 as 1 ball is as 3/14578 plir
Step-by-step explanation:
Look at picture^*answer quick pls*
Answer:
2
Step-by-step explanation:
Answer:
[tex] \sqrt{60} \\ [/tex]
what’s the measure of Angle R? help!!
Answer:
100°
Step-by-step explanation:
The sum of triangle angles is 180°
35+45=80
180-80=100
I need to know how many more there are.
Wdym????????????????
Please solve this pleaseeeeeeeeeee
Answer:
x = 45
Step-by-step explanation:
x + 2x + x = 180
4x = 180
x = 45
Answer:
Since its a triangle, all the angles must add to 180. So x+x+2x=180. Solve for x and you got your answer.
Step-by-step explanation:
Hi i need help with this please?!??!!
Answer:
May be your answer is option 3
Nasim is ordering a taxi from an online taxi service. The taxi charges $3 just for the pickup and then an additional $1 per mile driven. How much would a taxi ride cost if Nasim is riding for 4 miles? How much would a taxi ride cost that is mm miles long? please help :(
Answer:
7 dollars
Step-by-step explanation: 3 dollars for pickup=3
4miles=4
3+4=7
Answer:
$7
3 + 1m
Step-by-step explanation:
Can somebody please help me for this? I just need to know how to do any of it
Answer:
Image Below
Step-by-step explanation:
Someone help me plz?
Answer:
Distance
Step-by-step explanation:
Distance is unknown in the given situation.
Last one
They already know the distance from Tamsin's house to school and the distance from her house to Eric's bus stop
!!!!!!!Please help!!!!!!
Answer:
The population remains roughly the same.
Step-by-step explanation:
Got It? Do these problems to find out.
d. 1/4(d-3)=-15
E.0.75(6+d)=12
F.(t+3)5/9=40
D) Answer:
[tex]d = - 57[/tex]
E) Answer:
[tex]d = 10[/tex]
F) Answer:
[tex]t = 69[/tex]
hope it helps.
his portion of the dist Question: a. Explain why the number n is an irrational number. b. Will you ever be able to get the EXACT area of a circle? Why or why not? c. Is -4 a rational or irrational number? Explain why or why not. d. Name another irrational number besides Type your answer below: Edit - View Format Table - Formats В І = = * =:= E & Z I NEED HELP ASAP WILL REWARF MAX POINTS