7 less than three times Heather's
age is 14. Write an equation and
solve to find Heather's age.
Answers
3x=14+7
3x=21
divide 3x by 3
Divide 21 by 3
x=7
3*Heather’s age = 14+7
3H=21
H=7
Heather is 7 years old
Related Questions
Desmond builds a set of towers out of blocks. The table shows the number of blocks in each tower. Tower # 1 2 2 3 4 5 Number of blocks 5 10 20 40 80 Which explicit formula correctly represents the number of blocks, an, in terms of the tower number, n? A. an = n + 80 B. an = 2n + 5 C. An = 5(2)n-1 D. an = 10(5)
Answers
Answer:
C. An = 5(2)^n-1
Step-by-step explanation:
Tower 1 2 3 4 5
Number of blocks 5 10 20 40 80
Where,
n = tower number
An = number of blocks
A. an = n + 80
B. an = 2n + 5
C. An = 5(2)^n-1
D. an = 10(5)^n
Checking all options
A. An = n + 80
When n = 1
An = 1 + 80
= 81
B. An = 2n + 5
When n = 1
= 2(1) + 5
= 2 + 5
= 7
C. An = 5(2)^n-1
When n = 1
= 5(2)^1-1
= 5(2)^0
2^0 = 1
= 5(1)
= 5
D. An = 10(5)^n
When n = 1
= 10(5)^1
5^1 = 5
= 10(5)
= 50
The explicit formula which correctly represents the number of blocks, an, in terms of the tower number, n is C. An = 5(2)^n-1
Answer:
C
Step-by-step explanation:
I took the map test
If f(x) = 5 - 2x, find f(-15)
Answers
Answer: 35
Please give me Brainliest
Simplify : -9c - 15 + 7c + 10 + 2c
Answers
Answer:
-5
Step-by-step explanation:
-9c - 15 + 7c + 10 + 2c
-9c + 7c + 2c -15 + 10
-9c + 9c - 5
-5
Answer:
5
Step-by-step explanation:
-9c - 15 + 7c + 10 +2c
-9c + 9c + -15 + 10
5
Matt is four years younger than twice his cousin Andy’s age. The sum of their ages is greater than 35. What is the youngest age that Andy can be?
Answers
Answer: 13
Step-by-step explanation:
let m = Matt's age
let a = Andy's
:
Write an equation for each statement
:
Matt is four years younger than twice his cousin Andy’s age.
m = 2a - 4
The sum of their ages is greater than 35.
m + a > 35
What is the youngest age that Andy can be?
replace m with (2a-4) from the 1st statement
2a - 4 + a > 35
3a > 35 + 4
a > 39/3
a > 13
least integer has to be a = 14
:
:
Check, find m
m = 2(14) - 4
m = 24
24 + 14 = 38 greater than 35
If a = 13
m = 2(13) - 4
m = 22
22 + 13 = 35 which is not greater than 35
In a laboratory, the number of bacteria in a petri dish after t days is modeled by the function B (t) = 300,000/1+999e^-0.5t What does 300,000 represent?
initial number of bacteria in the petri dish
number of bacteria in the petri dish after one day
number of bacteria in the petri dish at any given time
maximum number of the bacteria the petri dish can hold
Answers
Answer: D
Step-by-step explanation:
Number at the top is the max
Answer:
maximum number of the bacteria the petri dish can hold
Step-by-step explanation:
Math equations that equal 31
Answers
17+14
30+1
60-29
18+13
6(x-4)+x=5(x-2) PLEASE HELP
Answers
Answer:
x+7
Step-by-step explanation:
dfghvnskdfcnvskdfc
Step-by-step explanation:
6(x-4)+x=5(x-2)
First we combine like terms.
6x-24+x=5x-10
7x-24=5x-10
-5x -5x
2x-24=-10
+24=14
2x=14
/2 /2
x=7
Sorry if it's wrong
Roselyn is driving to visit her family, which live 150150150 kilometers away. Her average speed is 606060 kilometers per hour. The car's tank has 202020 liters of fuel at the beginning of the drive, and its fuel efficiency is 666 kilometers per liter. Fuel costs 0.600.600, point, 60 dollars per liter. How long can Roselyn drive before she runs out of fuel?
Answers
Answer:
Your answer is 2 gallons
Step-by-step explanation:
Find the midpoint between
(3,8)
and
(-10,5)
Answers
Answer:
(-3.5,6.5)
Step-by-step explanation:
See the photo for step-by-step explanation
Answer:
(6.5,1.5)
Step-by-step explanation:
Which of the following will result in a rational answer? Which number is not a rational number?
Answers
Answer:
what are the #
Step-by-step explanation:??
please help i’m very confused on this one
Answers
Answer:
34.224
Step-by-step explanation:
C(2.76, 310) means you want to evaluate the expression for g=2.76 and d=310. Put those numbers where the variables are and do the arithmetic.
[tex]C(2.76,310)=\dfrac{2.76\cdot 310}{25}=\dfrac{855.6}{25}=\boxed{34.224}[/tex]
I got stuck here on this question... this is Algebra 2 btw
Answers
I don’t think this is algebra 2 but ok
37
I used the formula (32°F − 32) × 5/9 = 0°C (but ofc replaced the numbers with 99)
Yeah and i rounded 98.6 to 99. 99 Fahrenheit is 37.2222... so i rounded it down to 37. So i think the answer is 37.
Bill's temperature was 105° after 5 hours it was 7° lower, how much is it now?
Answers
Answer:
98°
Step-by-step explanation:
105-7=98
Identify all the Geometric Sequence(s) from the options below-
1, 1, 2, 3, 5, 8...
1, 2, 4, 8, 16...
4, 16, 36, 64...
81, 27, 9, 3...
-1,3,-9, 27...
1, 2, 6, 24..
Answers
2.) 2^n-1
3.) Not a sequence
4.) 81/3^n-1
5.) -(-3)^n-1
6.) Not a sequence
Whats value of x is in the solution set of 2(3x-1)>4x-6 A.-10 B.-5 C.-3 D-1
Answers
Answer:
B. -5
Step-by-step explanation:
3x-1 > 4x-6
+1
3x>4x-5
-4x
-x>-5
/-1 /-1
x>-5
pleaseee solve this peoplessss only the top
Answers
Answer:
3/5(0) = 0
3/5(5) = 3
3/5(10) = 6
Step-by-step explanation:
Sub the x (domain) into the equation and solve.
Answer:
x (0) = y (0)
x (5) = y (3)
x (10) = y (6)
Step-by-step explanation:
You substitute the given x in the table into the equation.
For example:
y= 3/5 (0)
= 0
what is the Y 2(7y−1)=40
Answers
Answer:
3
Step-by-step explanation:
2(7y−1)=40
14y-2=40
14y=40+2
14y=42
y=3
please mark as brainliest
14y-2= 40
+2. +2
0. 42
14y= 42
y=3
A equivalent ratio of 3:7 is?
3:9
6:10
9:12
Answers
Answer:
it is none of these options
Step-by-step explanation:
after multiplying it by 1,2 or 3 none of the option comes up
..
(+2) – (-6) what's the answer to this please write it out
Answers
Answer:
8
Step-by-step explanation:
+2-(-6)=2+6
the two negatives cancel each other out
2+6=8
Answer:
8
Step-by-step explanation:
2- -6
change subtraction sign to addition
2+-6
change negative sign to positive
2+6
solve
8
Use the figure below to find the value of y and each angle shown.
Answers
5y - 16 + 3y + 20 = 180 degrees
Combine like terms on the left side
8y + 4 = 180
Subtract 4 from both sides.
8y = 176
Divide both sides by 8
y = 22
Plug 22 into y for each angle.
3y + 20 = 3(22) + 20 = 66 + 20 = 86 degrees
5y - 16 = 5(22) - 16 = 110 - 16 = 94
The angle opposite 5y - 16 also equals 94 because they are vertical angles.
The angle opposite of 3y + 20 also equals 86 because they are vertical angles
Point M is the midpoint of line AB. If M is at (6,-2) and A is at (-3,0), what are the coordinates of endpoint b?
Answers
Answer:
Step-by-step explanation:
(x + 6)/2 = -3
x + 6 = -6
x = -12
(y - 2)/2 = 0
y - 2 = 0
y = 2
(-12, 2)
a brunette Hall is preparing to serve a party of 432 guests if each table seats 8 people how many tables are needed
Answers
Answer:
54
Step-by-step explanation:
432/8=54
The diagram is not drawn to scale
20
3x-8
Find the value of x to the nearest tenth.
Answers
Answer:
sin22=x/11
0,374×11=x
x=4,12
Step-by-step explanation:
Graph a line that contains the point (6,-5)
Answers
Answer:
y=-5
Step-by-step explanation:
It must contain (6, -5). Therefore, I went the easy way and created a line that has y = -5 no matter what x is. You can put 0x-5 if you want to make sure the independent variable is x.
A letter in the word ACCEL is chosen. What is the theoretical probability of choosing a C?
Answers
Answer:
there are 5 letters in all and 2 c's.. 2/5 2 out of every 5 times
Which could be used to evaluate the expression Negative 6 (4 and two-thirds)? (Negative 6) (4) + (negative 6) (two-thirds) (Negative 6) (4) times (negative 6) (two-thirds) (Negative 6 + 4) + (Negative 6 + two-thirds) (Negative 6 + 4) times (negative 6 + two-thirds)
Answers
Answer:
(Negative 6) (4) + (negative 6) (two-thirds
Franklin picked 342 potatoes out of his garden this season and will store them in 6 baskets.
If each basket holds the same number of potatoes, how many potatoes per basket will there
be?
PLEASEEEE HELPPP!!!,THIS HAS TO GET TURNED IN TOMORROW.
Answers
Answer:
57
Step-by-step explanation:
Divide 342 by 6
342/6=57
each basket will hold 57 potatoes!
I hope this helps :)
Let g(x)=16-x^2. Compute g(4)-g(-2) over 4-(-2). Interpret your answer in part a.
Answers
g(-2)=16-(-2)*2=20
4-(-2)=6
8-20/6=-2
Does anyone know the answer to any of these? Please I need help. Real bad!
Answers
Answer:the first one is x=87
The second one is x =8
Step-by-step explanation
Somebody who knows this plz!!!!
answer it has to be correct :/
(Will mark as brainliest)
Answers
Answer:
Answer Below
Step-by-step explanation:
45) 96, 432, and 1092
46) 372 and 9404
47) 4168, 808, 216, and 5608
Answer:
the answer for 45 is 96,432,1092..
the answer for 46 is 378,9404...
the answer for 47 is 4168,808,216,5608..
please mark me as brainliast