Answer:
a pic of ur math?
Step-by-step explanation:
Pedro and John are going on a field trip with school. Together the boys have $62 to spend on the trip. If Pedro has $15 more than John, how much money does John have? Write a function rule (equation) that represents the situation.
Answer:
John has $23.5Step-by-step explanation:
Step one:
we are told that their joint amount is $62
let John's amount be x
and Pedro's amount be y
so that y=x+15
Step two:
The equation to represent the situation is
62=x+(x+15)
open the bracket and solve for x we have
62=x+x+15
62=2x+15
2x=62-15
2x=47
divide both sides by 2
x=47/2
x=23.5
John has $23.5
Solve for X
[tex] \frac{x - 6}{2} = \frac{2 - x}{x} [/tex]
Answer:
[tex]\huge\boxed{x=2-2\sqrt2\ \vee\ x=2+2\sqrt2}[/tex]
Step-by-step explanation:
[tex]\dfrac{x-6}{2}=\dfrac{2-x}{x}\\\\\text{Domain:}\ x\neq0\\\\\dfrac{x-6}{2}=\dfrac{2-x}{x}\qquad|\text{cross multiply}\\\\(x-6)(x)=2(2-x)\qquad|\text{use the distributive property}\\\\(x)(x)+(-6)(x)=(2)(2)+(2)(-x)\\\\x^2-6x=4-2x\qquad|\text{add}\ 2x\ \text{to both sides}\\\\x^2-6x+2x=4-2x+2x\\\\x^2-4x=4\qquad|\text{add}\ 2^2\ \text{to both sides}\\\\x^2-2\cdot x\cdot2+2^2=4+2^2\qquad|\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\(x-2)^2=4+4\\\\(x-2)^2=8\iff x-2=\pm\sqrt8\\\\x-2=\pm\sqrt{4\cdot2}[/tex]
[tex]x-2=\pm\sqrt4\cdot\sqrt2\\\\x-2=\pm2\sqrt2\qquad|\text{add 2 to both sides}\\\\x-2+2=-2\sqrt2+2\ \vee\ x-2+2=2\sqrt2+2\\\\\huge\boxed{x=2-2\sqrt2\ \vee\ x=2+2\sqrt2}[/tex]
Don't go by my answers pls
Answer:
19) ( [tex]\frac{-2}{5}[/tex])^2 = [tex]\frac{4}{25}[/tex]
20) -[tex]9^{2}[/tex] = -81
21) [tex]2^{4}[/tex] = 16
Step-by-step explanation:
The only wrong ones are
19) ( [tex]\frac{-2}{5}[/tex])^2 = [tex]\frac{4}{25}[/tex]
20) -[tex]9^{2}[/tex] = -81 ... negative is not inside a parenthesis that's why it is still negative
21) you can add another way is [tex]2^{4}[/tex] = 16
Everything else looks good. Great job!
The sum of the squares of three consecutive integers is 50. Find the integers. (Hint: If one integer is x, the next consecutive positive integer is x + 1, and the third is x + 2. Simplify your answers completely. Enter your answers as a comma-separated list.)
Answer:
There's two answers.
-5, -4, and -3
3, 4, 5
Step-by-step explanation:
[tex]x^{2} +(x+1)^{2} +(x+2)^{2} =50\\x^{2} +x^{2} +2x+1+x^{2} +4x+4=50\\3x^{2} +6x+5=50\\3x^{2} +6x-45=0\\3(x^{2} +2x-15)=0\\(x+5)(x-3)=0\\x = -5\\x = 3\\[/tex]
if you need help with Math:)
Answer:
Thanks!
Step-by-step explanation:
I already have it on my phone tho lol
1 - 0.27
6
can you subtract this
Answer:
yes the answer would be 0.724
Three pumpkins are catapulted at a contest. How much farther does Pumpkin C travel than Pumpkin A? • Pumpkin A travels 0.61 mile. • Pumpkin B travels 0.28 mile farther than Pumpkin A. • Pumpkin B travels 0.06 mile farther than Pumpkin C.
Answer:
0.22 miles
Step-by-step explanation:
Let
A = Distance pumpkin A travels = 0.61 miles
Distance pumpkin B travels is 0.28 mile farther than Pumpkin A
[tex]B=0.28+A\\\Rightarrow B=0.28+0.61\\\Rightarrow B=0.89\ \text{miles}[/tex]
Distance pumpkin B travels is 0.06 miles further than pumpkin C
[tex]B=0.06+C\\\Rightarrow C=B-0.06\\\Rightarrow C=0.89-0.06\\\Rightarrow C=0.83\ \text{miles}[/tex]
To calculate how much farther pumpkin C travels than pumpkin A we have the subtract their distances
[tex]C-A=0.83-0.61=0.22\ \text{miles}[/tex]
So, pumpkin C traveled 0.22 miles more than pumpkin A.
What is the area of the following trapezoid 210 280 420 140
Answer:
Step-by-step explanation:
A= a+b/2 h (area = a +b over 2 times H) plug in your numbers
I dont have a picture, if i did i could solve it, but here is the formula
if two people were to go to the movies and share the cost of what they paid. how much would they both pay? $2 for snacks $13 for the tickets. p.s. it could be a decimal of fraction ig
Answer: $7.50
Step-by-step explanation: they spent 15 n if they split that it’s 7.50
What is the volume of a sphere with a diameter of 23.5 in, rounded to the nearest
tenth of a cubic inch?
Answer:
V≈6795.2in³
Step-by-step explanation:
I think
Answer:
6795.2
Step-by-step explanation:
i got it right
HELLO, plz answer this. Ming won 121 lollipops playing basketball at her school's game night. Later, She gave 48 to each of her friends. She only has 9 remaining. How many friends does she have? Write an equation for this problem and solve it with steps.
Answer:
Ming has 2 friends
(121-9)÷48= 2.3
You can´t split apart people.
First subtract 9 from 121 then divide by 48 to find how man friends Ming has.
A cell phone costs $750 and loses 28% of its value each year. What is the value of the phone after 2 years?
Answer:
210
Step-by-step explanation:
Percentage Calculator
The value of the phone after 2 years will be equal to $388.8.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also represent the logical syntax's operation order and other properties.
Given that the cell phone costs $750 and loses 28% of its value each year. The value of the phone after 2 years will be,
The value of the phone after 2 years will be calculated as,
Cost of phone = 750 x ( 0.28 )²
Cost of the phone = $388.8
To know more about an expression follow
https://brainly.com/question/21538545
#SPJ2
Solve for n, 4 x n = 7 x 16
Answer:
n=28
Step-by-step explanation:
Do I have to explain how i got the answer?
Answer:
4n=112
n=112/4
n=28
Step-by-step explanation:
Please give me brainliest, if I helped you
2+46×8÷2= can someone find the answer
Answer:
186
Step-by-step explanation:
PEMDAS
First do 46 x 8 = 368 then divide that by 2, which would be, 184. Then add 2 to 184 and you get 186. :)
what cannot be rational??
Answer:
the 4th one
Step-by-step explanation:
which one of the fractions is the smallest?
A) 1/2
B) 3/20
C) 3/8
pls help
Answer:
3/20
Step-by-step explanation:
just like the other person said
1/2 is the largest because it is 0.500
3/8 is the second largest because it is 0.375 and
3/20 is the smallest because it is 0.150
Have a nice day
What is the value of x in the equation –2.4x = 8.4? –20.16 –3.5 3.5 20.16
Answer:
-3.5
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Dustin says the product of 4.5 x 0.8 is equal to 3.6. Which explains whether or not his answer is correct
what about this one? can this be answered please? : )
Answer:
c. y=7x-2
Step-by-step explanation:
hope this can help
who can ask me a question about addition?
Question 2 (2 points)
(08.06)
Using the graph below, calculate the average rate of change for f(x) from x = 0 to x=2.
a: x=-4
b: x=-2
c: x= 2
d: x= 4
Answer:
Option (D)
Step-by-step explanation:
Formula to get the average rate of change of the function f(x) between two points x = a and b is,
Average rate of change = [tex]\frac{f(b)-f(a)}{b-a}[/tex]
We have to calculate the average rate of change between x = 0 and x = 2.
From the graph attached,
f(0) = -2
f(2) = 6
Therefore, average rate of change = [tex]\frac{6-(-2)}{2-0}[/tex]
= [tex]\frac{8}{2}[/tex]
= 4
Option (D) will be the correct option.
11/6 = 1/3 + p
(Find the common denominator first.)
Answer:
p = 3/2
Step-by-step explanation:
I LUV MATH TeeHee
i actually hate it-
Answer:
I HATE MATH TeeHee
Step-by-step explanation:
i actually hate it-
ED GE NU IT Y PE OP LE
The number of scares a clown will get for the night can be modeled with the equation `y=2x`. Vampires have an equation that is parallel to clowns and passes through the point (4, 11). What is the vampire's equation?
Answer:
ghvucycygifud5duvufysyvkcyxhvucydycibkx
Step-by-step explanation:
huh gg xtdy"#gicyfufucyxyhhjv ycyf cyst
Answer:
the answer is 3×2+2
Step-by-step explanation:
3x2=9+2=11
Edward deposited $9,500 into savings account 2 years ago. The simple interest rate is 4%. How much money did Edward earn in interest ? What would be his new account balance
Answer:
$760 earned in intrest
$10260 new account balance
Step-by-step explanation:
First we have to find 4% of 9500
use the formuala
[tex]\frac{4}{100} =\frac{x}{9500}[/tex]
4×9500=38000
38000÷100=380
now 380×2=760
add 760 to 9500 for new account balance
In basketball, some baskets are worth two points. Others are worth three points. In one game, the ratio of three-point baskets to three-point tries for one team was . If the team scored 27 points from three-point baskets, how many three-point tries did the team have?
Answer:
36 attempts
Step-by-step explanation:
Caleb and his sister are combining their trading cards. He has 29 cards, and she has 16 cards. They then trade an equal number of cards to 9 friends. How many cards does each friend get?
Answer:
The answer is 5 cards.
Step-by-step explanation:
Yu have to add 29 and 16 . When yu do that yu get 45 cards total. Divide 45 by 9 (friends) yu get 5 cards per person.
plsssss
do all of the questions and I give you brainlist .make sure they are right
Answer:
1) 6,000 B) 800 C) 4,000
2)7,500
3)third and fourth one
4)6,951
Step-by-step explanation:
just because
Answer:
1 a. 6043=6000 b. 789=1000 c. 3911=4000
2 7341 is a possible solution
3 350 6000 7900
4 6951
What's 7.778 to the nearest hundred
Answer:
7.78
Step-by-step explanation:
Answer:
The answer is 7.78
Step-by-step explanation:
I had this on a test and got it correct
MARK THE BRAINLIEST PLEASEEE
-2x-5=4 solve for x and please tell me how you got it
Answer:
x = -9/2 or -4.5
Step-by-step explanation:
-2x-5=4
Add 5 to each side
-2x-5+5=4+5
-2x = 9
Divide each side by -2
-2x/-2 = 9/-2
x = -9/2 or -4.5