Answer:
1.25
Step-by-step explanation:
Find the average.
-5.1+7.6=2.5
2.5/2
1.25
What is 0.524 In scientific notation
Write an equation of the line passing through the points (3,8) and (-2,-22)
Answer:
y=6x+8 or y=6x-22
Step-by-step explanation:
use the equation y=mx+b
m is the slope and b is the y-intercept
to find the slope use the equation m = y2-y1 over x2-x1
-22 - 8 / -2 - 3 = -30 / -5 = 6
6 is your slope and for the y-intercept you can choose whichever y-intercept to put into the equation.
HOPE THIS HELPS!!
angela buys 12 cans of soda for $5.40.what is the unit rate for each can of soda
Answer: $0.45
Step-by-step explanation: $5.50/ 12= $0.45
The Cost Saver Grocery Club sells sheet cakes. Each 14 sheet of cake requires 0.75 teaspoon of baking soda.
Which expressions can be used to find the amount of baking soda needed for a whole cake? Select all the expressions that apply.
Answer:
2.75 tsp
Step-by-step explanation:
1/4 divided by 0.75
i need help with 1/2x+13=9
im in the 8th grade btw
Answer:
-8
Step-by-step explanation:
You are wanting to solve for x
First you want to subtract 13 on both sides-
1/2x = -4
Now you want to divide on both sides-
x = -8
Answer:
1/-8
To find:
x
Step-by-step explanation:
1/2x+13=9
take 13 to the LHS. when you take 13 to the LHS it becomes negative
1/2x=9-13
1/2x=-4
by cross multiplying,
2x × -4=1
-8x=1
x=1/-8
hope it helps you!!
A baby can crawl at a speed of 10 feet per minute. About how many feet per hour is this?
Answer: 600 feet per hour
Because there are 60 minutes in an hour and 10 times 60 is 600
Choose the slope and y-intercept that
correspond with the graph.
HELPPP!!!!!!
Answer:
Slope:-1/4 y-int: 3
Step-by-step explanation:
You can you the formula y1-y2/x1-x1 or you can look at it and find out if that makes sense
F(x)=20x Calculate how high he will be at 5, 25, and 60 minutes.
F(5)=
F(25)=
F(60)=
Answer:
f(5) = 100
f(25) = 500
f(60) = 1200
Step-by-step explanation:
All you had to do was pulug in the f(x) into the x.
F(5) = 20 (5) = 100
f(25) = 20(25) = 500
f(60) = 20(60) = 1200
PLZ MARK ME BRAINLIEST!!!!
. Which graph represents the solution to the inequality below? 4 – 2x > -2
I’m not sure if i am correct with my answer. Can Someone help or confirm which answer it is or if i’m correct or not? :)
six years from now, mark we'll be four times his age today. what is correct equation in terms of Marc's present age A.x+6=4×B.x=4×+6C.4×=×-6D.x=x+4x
Answer: A
Step-by-step explanation: I'm in college. This is middle school math lol
the formula for the area of a trapezoid is a=1/2(b
Answer:
area=[(a+b)/2]*h
Step-by-step explanation:
a= longer base length
b= shorter base length
h= height of trapezoid
What is the probability that both spinners land on red or orange?
A) 1/9
B) 1/3
C) 4/9
D) 2/9
Answer:
A, the probability is 1/9. you get this because you multiply the probabilities
in this example its 1/3 times 1/3 so you get 1/9
Step-by-step explanation:
Terms must be like terms in order to _______ or______. Terms do not have to be like if we are ______ or ______.
Answer: Add, subtract, multiply, divide
Step-by-step explanation:
Terms must be like terms in order to add or subtract. Terms do not have to be like if we are multiplying or dividing.
You cant add unlike terms when adding or subtracting, but you can use the exponent rules when multiply or dividing.
solving absolute value equations |x-7|=16
your Answer will be
x=23 or x=−9
. Eight years ago, Rudi thought that he was making a sound investment by buying $1000 worth of Pro Sports Management stock. Unfortunately, his investment depreciated steadily, losing 15% of its value each year. a. What is the multiplier? b. Write a function using f(t) to describe the situation. c. How much is the stock worth now?
Answer:
a. 0.85
b. [tex]f(t) =1000(0.85)^t[/tex]
c. $272.49
Step-by-step explanation:
Given that:
Initial investment made, 8 years ago = $1000
Depreciation value each year = 15%
To find:
a. Multiplier
b. Function [tex]f(t)[/tex] to describe the situation.
c. Worth of stock now.
Solution:
a. Depreciation of 15% means the value becomes (100 - 15) % = 85% or 0.85 of the actual value.
Therefore, the multiplier is 0.85.
b.
Every year the value becomes 0.85 times of the actual value.
If it continues for [tex]t[/tex] years, then the values will be:
[tex]f(t) =1000(0.85)^t[/tex]
c. Let us put [tex]t=8 \ years[/tex] to find the worth of stock now.
[tex]\Rightarrow f(8) =1000(0.85)^8\\\Rightarrow \bold{\$272.49}[/tex]
So, the answers are:
a. 0.85
b. [tex]f(t) =1000(0.85)^t[/tex]
c. $272.49
The scale of a map is 4 ft = 13 mi. If the actual distance between two cities is 45.5 miles, what is that
distance represented on the map?
What are the quotient and remainder of (2x4 + 5x3 – 2x – 8) + (x+3)?
a. 2x3 - x2 + 3x - 11; 1
c. 2x3 - x2 + 3x - 11; 25
b. 2x4 -x + 3x2 - 11; 25
d. 2x3 - x2 + 3x + 11; 25
Answer:
option b ) 2x3 - x2 + 3x - 11; 25
Step-by-step explanation:
5/8 mile in 1/4 hour
Answer: 2.5 mph
Explanation:
4 x 5/8 = 2.5
Does Kerri's dot plot match the data in the tally
table? Yes or no?
Use kerri’s for plot to complete these statements
___classmates spent 3 hours at the park
___Classmates spent 4 hours at the park
___Classmates spent 5 hours at the park
____Classmates spent 6 hours at the park
Answer:
the answer is none
Step-by-step explanation:
because as you can see the dots dosent match the tally's on the chart
I DON'T KNOW HOW TO DO THIS!!
Answer:
m = 10
Step-by-step explanation:
Solve for the value of x that makes lines r and s parallel.
Answer:
Lines r and s are at an angle if you change the degrees a little bit like 2x 1.5o
Step-by-step explanation:
I dont rlly know im giving it a go!
. Factor this Quadratic. What is it in factored form?
x^2-14x+45
(x-15)(x-3)=0
(x+9)(x+5)=0
(x+15)(x+3)=0
(x-9)(x-5)=0
SOLVE NUMBER TWO I WILL GIVE BRAINLIST!! USE PIE PLEASE.
Answer:
see explanation
Step-by-step explanation:
The circumference (C) of a circle is calculated as
C = πd ( d is the diameter )
Here C = 32π , thus
πd = 32π ( divide both sides by π )
d = 32
Thus a coin with diameter 32 mm should fit through a slot of 35 mm
simplify -3/4 divided by 2/-8
Answer: 3
Step-by-step explanation:
(-3/4)/(-2/8)=(-3/4)(-8/2)=(-3/4)(-4)=3
Solve: −4d − 6 = −10
Answer:
hi
Step-by-step explanation:
[tex] - 4d - 6 = - 10 \\ - 4d = - 10 + 6 \\ - 4d = - 4 \\ d = 1[/tex]
i think so…
Answer:
_4d=_10+6
_4d=_4
_4/_4d=_4/_4
d=1
help asap
solve them all i will mark u brainllest
Answer: (15) see below (16) 284 (17) option 1 (18) option 3
(19) see below (20) 33 (21) L = 50, w = 10
Step-by-step explanation:
15) 7xy + 3x + 5
↓ ↓ ↓
↓ ↓ 5 is a term with no variable so is a constant
↓ 3x is a term with a coefficient of 3
7xy is a term with a coefficient of 7
Constant Coefficient Term
7 X
3x X
5 X X
16) 12a² - 3 |b| + 2a ; a = -5, b = -2
12(-5)² - 3 |-2| + 2(-5)
= 12(25) - 3(2) - 10
= 300 - 6 - 10
= 294 - 10
= 284
17) 4(k + 5) = -2(9k - 4)
4k + 20 = -18k + 8 Distributed 4 and -2
22k + 20 = 8 Added 18k to both sides
22k = -12 Subtracted 20 from both sides
k = -12/22 Divided 21 from both sides
k = -6/11 Simplified (GCF = 2)
18) V = π r²h
V/(π r²) = h Divided π r² from both sides
19) v = s² + (1/2)sh
v - s² = (1/2)sh Subtracted s² from both sides
2(v - s²) = sh Multiplied both sides by 2
2(v - s²)/s = h Divided s from both sides
1 2 3
subtract s² X
divide by s X
multiply by 2 X
20) F = (9/5)C + 32 ; F = 91
91 = (9/5)C + 32
59 = (9/5)C Subtracted 32 from both sides
295 = 9C Multiplied both sides by 5
32.8 = C Divided 9 from both sides
33 = C Rounded to the nearest whole number
21) Perimeter (P) = 2Length (L) + 2width (w)
Given: P = 120, L = 5w
P = 2L + 2w
120 = 2(5w) + 2w
120 = 10w + 2w
120 = 12w
10 = w
L = 5w
= 5(10)
= 50
i’m confused on #3-5. Please help :)
What is the solution to the following equation?
1
—
3 (9-2y) = 5(2 - 3y) - 50
Answer:
y=(-3)
Step-by-step explanation:
2+6k-18=-3k+11
show work
thanks!!
plz help
Answer:
k=3
Step-by-step explanation:
6k -16 =-3k+11
9k=27
divide both sides by 9
