i need someone to help me understand this and questions like this
Answer:
a >= -3
Step-by-step explanation:
So A
Please help!! It is timed..
In a basketball game Elena scored twice as many points as Tyler Tyler scores four points fewer than Noah and Noah scores three points as Mai of Mai scores 5 points how many points did Elena score
Full question:
In a basketball game, Elena scores twice as many points as Tyler. Tyler scores four points fewer than Noah, and Noah scores three times as many points as Mai. If Mai scores 5 points, how many points did Elena score? Explain your reasoning
Answer and explanation:
We start from known to unknown. We know that Mai scored 5 points and so we work from here.
Since Mai scored 5 points and Noah scored three times as many points then Noah's score = 3×5= 15 points
Since Tyler scored four points less than Noah, Noah's score= 15-4= 11 points
Finally Elena's score is twice that of Tyler hence Elena's score =2×11= 22 points
Last year, Amy had $20000 to invest. She invested some of it in an account that paid 8% simple interest per year, and she invested the rest in an account that paid 9% simple interest per year. After one year, she received a total of $1690 in interest. How much did she invest in each account?
Answer:
Amount invested at 8% rate of interest = $11000
Amount invested at 9% rate of interest = $9000
Step-by-step explanation:
Let Amy invested amount in a account with 8% simple interest = $a
Then the interest gained after one year = [tex]\frac{\text{Principal amount}\times \text{Rate of interest}\times \text{Time}}{100}[/tex]
= [tex]\frac{a\times 8\times 1}{100}[/tex]
= 0.08a
Remaining amount for the investment = $(20000 - a)
Interest earned after one year with rate of interest 9%
= [tex]\frac{(20000-a)\times 9\times 1}{100}[/tex]
= $(1800 - 0.09a)
Total interest earned after 1 year = $1690
0.08a + (1800 - 0.09a) = 1690
1800 - 0.01a = 1690
0.01a = 110
a = $11000
Amount invested at 8% rate of interest = $11000
Amount invested at 9% rate of interest = $(20000 - 11000) = $9000
Opens right, a=3, vertex: (-5, -2)
Answer:
What.... what do you need help with
Step-by-step explanation:
Explanation
LA BASE DE UN RECTANGULO ES 8 M MAYOR QUE LA ALTURA, EL AREA MIDE 65 METROS CUADRADOS ¿CUANTO MIDEN LA BASE Y ALTURA?
Answer:
23 m and 15 m
Step-by-step explanation:
THE BASE OF A RECTANGLE IS 8 M GREATER THAN THE HEIGHT, THE AREA MEASURES 65 SQUARE METERS HOW MUCH DO THE BASE AND HEIGHT MEASURE?
Let the height of the rectangle is h.
Base = 8+h
Area of the rectangle, A = 65 m²
We need to find the base and height of the rectangle. The area of a rectangle is given by :
A = bh
So,
[tex]65=(8+h)\times h\\\\65=8h+h^2\\\\h^2+8h-65=0\\\\(h-5)(h+13)=0\\\\h=5\ m\ \text{and}\ x=-13\ m[/tex]
Neglecting negative value, h = 15 m
Base = 8+15 = 23 m
So, the base and height of the rectangle is 23 m and 15 m respectively.
Combine like terms: -12 +4C -25 + (-6x) + (3c) - (-3x)
Answer:
7c-3x-37 , this is correct answer
the path of a toy rocket is modelled by the equation y=-x^2+6x+2, where x is the horizontal distance, in metres, travelled and y is the height, in metres, of the toy rocket above the ground. what is the maximum height of the toy rocket? at what horizontal distance does the maximum height occur?
Answer:
The path of a toy rocket is defined by the relation y=-3x^2+11x+4, where x is the horizontal distance, in meters, traveled and y is the height, in metres, above the ground.
Determine the zeros of the relation.
-3x^2 + 11x + 4 = 0
---
3x^2 - 11x -4 = 0
Factor:
3x^2 - 12x + x - 4 = 0
---
3x(x-4) + x-4 = 0
---
(x-4)(3x+1) = 0
---
x = 4 or x = -1/3
============================
f(x) = -3x^2+11x+4
How far has the rocket traveled horizontally when it lands on the ground?
4 ft.
==================
What is the maximum height of the rocket above the ground, to the nearest hundredth of a meter?
---
max occurs when x = -b/2a = -11/(2*-3) = 11/6
height = f(11/6) = 14.083 ft
bob is picking randomly from a bag containing tiles member 1 to 10. write down the probability that the number he picks is 7
Answer:
Step-by-step explanation:
a) No of outcomes= 7
total no of outcomes= 10
probability = no of outcomes/total no of outcomes
=7/10
b) 4/10 ( since the outcomes could be 1,2,3,4)
c) no 1 to 10 has 5 odd numbers
so, probability = 5/10 = 1/2
d) multiples of 3 from 1 to 10 are :-
3,6,9= 3 no's
so probability = 3/10
84 people attended a play. Of the 84 students 1/3 of them where parents. How many parents were in the adduince
∠A and ∠B are vertical angles.
If m∠A=8x+14 and m∠B=2x+50, what is m∠B?
help me with this please and i will give brainlest
Answer:
stop asking me like I'm doing school
unknown variables in Equations
1. 7=w/14
2.42/n=7
3. 324/18=a
Answer:
w = 98
n = 6
a = 18
Step-by-step explanation:
Question 1)
7 = w/ 14
All you need to do is multiply each side by 14 to find w:
7(14) = W
W = 98
Question 2)
42/n = 7
For this one, first multiply each side by "n":
42 = 7n
and then divide both sides by 7:
N = 6
Question 3)
All you need to do for this question is divide 324 by 18 to find "a":
324/18 = a
a = 18
I hope this helps!
-TheBusinessMan
use substitution to solve this. substitute for x, not y
x = -y - 2
0.5x + y = 1
Answer:
y= 4
Step-by-step explanation:
hope this helps :)
The mean of {6,8,2,12,5}
Answer:
6.6
Step-by-step explanation:
Answer:
6.6
Step-by-step explanation:
6 + 8 + 2 + 12 + 5 = 33
33 / 5 = 6.6
plz mark brainliest
help please????????????????????
8,8,8 este primull!!!!!!! sper că te-am ajutat
Find the inverse of 3x - 6
3x - 6
3x - 6
-3x + 6
-3x + 6
3x + 6
3x + 6
-3x + 6
Answer:
3x+6 is inverse of 3x-6.it is a additive inverse and if we add both we get 0.
You receive an $18 commission on a
$18 commission on a $300 TV that you
sold. What percent commission did you earn?
What the answer ?
Answer:
6%
Step-by-step explanation:
300 ÷ 3 = 100
18 ÷ 3 = 6
(Dance class) pleaseeeeeee help
Answer: freestyle
Step-by-step explanation:
Suzy leaves her house and walks 6 blocks east then
8 blocks south. As the crow flies how far is suzy
from her house?
Answer:
14 blocks
Step-by-step explanation:
Kiri and Peter share some sweets in the ratio 6:7
What fraction of the sweets does Kiri recieve?
Answer:
6/13
Step-by-step explanation:
Sweets received by Kari = 6
Total number of sweets = 6 + 7 = 13
Fraction of sweets received by Kari = 6/13
HELP PLSSSSSESSSSSSSSSSSS
Answer:
Step-by-step explanation:
10(3)+2(10)(4)+2(3)(4)=30+80+24
=134
what is the y from for 5y+4x=-20 NEED HELP ASAP
Answer: y=−4/5x−4
Step-by-step explanation:
5y+4x=−20
Step 1: Add -4x to both sides. 4x+5y+−4x=−20+−4x 5y=−4x−20
Step 2: Divide both sides by 5.
y=−4/5x−4
fill in the blanks and use each number once
I think this is the solution. I don't think you are supposed to use PEMDAS.
Calculate the product using partial products
1. 14.9 x 100=
Answer:
The answer is 1490
Step-by-step explanation:
u just throw the two zeros from the hundred to the back
The correct answer is,
[tex]1490.0[/tex]
Pleaseeeee helppp answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answer:
x = 6
Step-by-step explanation:
(5x-24)/2 = 3
2.5x - 12 = 3
2.5x = 15
x = 6
What negative number equals to the number 10
Cullen said that multiplying a fraction by a fraction equivalent to 1 always results in a fraction that has the same value as the original fraction. Is he correct?
HELP i’m trying to figure this out can anyone help?? the quistion is at the top of the picture.
Answer:
3/2
Step-by-step explanation:
The first step is finding two points. (4,6) and (0,0) are two easy points to use.
To find the slope, find the change of y over the change of x.
(6-0)/(4-0) = 6/4 = 3/2
Which of the following materials will conduct electricity well?
Answer:
Step-by-step explanation:
Most metal conduct electricity well. To be more specific, anything with conduction or "free" electrons will conduct electricity very well.