Answer: 5
Step-by-step:
1. set up equations : 4x+12=8 and 2x+7=?
2. solve for x in the first eq.
4x + 12 = 8
4x = -4
x = -1
3. plug x = -1 into 2x+7=?
2 ( -1 ) + 7 =
-2 + 7 =
5
Write an algebraic expression for the word expression 9 less than the sum of x and 5
Answer:
X + 5 - 9
Step-by-step explanation:
Is your expression.
7) Taylor has a bag of marbles that are all the same size. Of all the marbles
in the bag, there are 5 red, 6 pink, 7 blue, 3 green, and 4 yellow marbles.
Using a probability model for this experiment, predict how many times
Taylor would pick up a red marble if she choses a marble 300 times. *
I
Answer:
60 times
Step-by-step explanation:
There are a total of 5+6+7+3+4=25 marbles
Out of those 25 marbles, 5 are red.
Since there would be a 5/25=1/5 chance of selecting a red marble one time, then we can set up a proportion to find out how many red marbles Taylor will select out of 300 marbles.
1/5=x/300
(1)(300)=(5)(x)
300=5x
60=x
x=60
Therefore, using a probability model for this experiment, Taylor would pick up a red marble 60 times if she chooses a marble 300 times.
You are buying a new internet service. The service costs $75 per month. In the equation below, d is the
total number of dollars that you pay for your service, and t is the time (in months) that you keep the
service.
The relationship between these two variables can be expressed by the following equation:
d = 757
Identify the dependent and independent variables.
Help!!!
Answer:
The total number of dollars you pay: Dependent
The time in months you keep your service: Independent
find the value of find the value of a -7 when a equals 19
Answer:
12
Step-by-step explanation:
You have to substitute a by 17 and then just subtract.
How do you simplify 1 1/3
Answer:
4/3
Step-by-step explanation:
Evaluate 150 - ( 2 +x)^ 3 when x - 2
Answer:
86
Step-by-step explanation:
(2+2=4) 4 to the 3rd power is 64. 150 minus 64 is 86
Sandra earns $3 for each bead necklace that she makes. She spends all the money she earns from selling 8 necklaces on 4 books. Each book costs the same amount.
Answer:6
Step-by-step explanation: if she earns 3 per 1 necklace, 8 times 3 is 24 and if she spends ALL the money then right now she has 24 and 4 books to spend it on. 24/4 is 6
3x^2+xy factorise it
Answer:
The factorized expression is [tex]x(3x + y)[/tex]
Step-by-step explanation:
We are given the following expression:
[tex]3x^2 + xy[/tex]
Factorizing:
We place the common factor in evidence.
The common factor of both elements of the sum is x. So
[tex]3x^2 + xy = x(\frac{3x^2}{x} + \frac{xy}{y}) = x(3x + y)[/tex]
The factorized expression is [tex]x(3x + y)[/tex]
1 inch x 3/4 inch x 1/2 inch
Answer:
3/8
Step-by-step explanation:
A car is driven 600 miles and uses 20 gallons of gas. If gas is $1.05 per gallon, what is the gasoline cost per mile?
Answer:
hi
Step-by-step explanation:
No way you guys answer this correctly 0_0.
Answer:
C = 37.7
r = 6
Length - 0.740
Ok thanks for the points!
CAN SOMEONE PLEASE DO THE MOST THEY CAN THIS IS URGENT
Answer:
1) 30
2) 1
3) 72
4) 0
5) 6
6) 2
7) 80
11) 16
12) 75
13) 31
14) 36
15) 0
16) 26
17) 52
Step-by-step explanation:
____________________________
1.) [tex]\bold{x=30}[/tex]2.) [tex]\bold{x=1}[/tex]3.) [tex]\bold{x=72}[/tex]4.) [tex]\bold{x=0}[/tex]5.) [tex]\bold{x=6}[/tex]6.) [tex]\bold{x=2}[/tex]7.) [tex]\bold{x=80}[/tex]11.) [tex]\bold{x=16}[/tex]12.) [tex]\bold{x=75}[/tex]13.) [tex]\bold{x=31}[/tex]14.) [tex]\bold{x=36}[/tex]15.) [tex]\bold{x=0}[/tex]16.) [tex]\bold{x=26}[/tex]17.) [tex]\bold{x=52}[/tex]____________________________
5.2 divided by what equals 0.052
-4n>24 write a answer as an inequality
Answer:
n < -6
Step-by-step explanation:
-4n>24
Divide each side by -4, remembering to flip the inequality
-4n/-4 < 24/-4
n < -6
Answer:
n < -6
Step-by-step explanation:
We are given the following equation and asked to solve for n:
-4n > 24Divide both sides by -4 to isolate n by itself, and since we are dividing/multiplying a negative number on both sides, we need to flip the inequality sign:
(-4n)/-4 < 24/-4n < -6please help !! find the missing sides
A circular flower bed in a botanical garden has a radius of 7 feet.
What is the area of the flower bed?
Use 3.14 for π.
Question 8 options:
153.86 feet
43.96 feet
21.98 feet
find the area of the shaded region. geometry please help if your good at it. will mark brainlist
Area of shaded region = area of circle - area of segment
(where "segment" refers to the unshaded region)
Area of circle = π (11.1 m)² ≈ 387.08 m²
The area of the segment is equal to the area of the sector that contains it, less the area of an isosceles triangle:
Area of segment = area of sector - area of triangle
130° is 13/36 of a full revolution of 360°. This is to say, the area of the sector with the central angle of 130° has a total area equal to 13/36 of the total area of the circle, so
Area of sector = 13/36 π (11.1 m)² ≈ 139.78 m²
Use the law of cosines to find the length of the chord (the unknown side of the triangle, call it x) :
x ² = (11.1 m)² + (11.1 m)² - 2 (11.1 m)² cos(130°)
x ² ≈ 404.82 m²
x = 20.12 m
Call this length the base of the triangle. Use a trigonometric relation to determine the corresponding altitude/height, call it y. With a vertex angle of 130°, the two congruent base angles of the triangle each measure (180° - 130°)/2 = 25°, so
sin(25°) = y / (11.1 m)
y = (11.1 m) sin(25°)
y ≈ 4.69 m
Then
Area of triangle = xy/2 ≈ 1/2 (20.12 m) (4.69 m) ≈ 47.19 m²
so that
Area of segment ≈ 139.78 m² - 47.19 m² ≈ 92.59 m²
Finally,
Area of shaded region ≈ 387.08 m² - 92.59 m² ≈ 294.49 m²
Need help with one more thing. Find the value of y.
Answer:
12 or 13
Step-by-step explanation:
one of the two from my knowledge
Answer:
y = 11.82
Step-by-step explanation:
use cos:
⇒ cos = [tex]\frac{adjacent}{hypotenuse}[/tex]
⇒ cos 10 = [tex]\frac{12}{y}[/tex]
cos of 10 is 0.9848
⇒ 0.9848 = [tex]\frac{12}{y}[/tex]
multiply 12 on both sides
⇒ 0.9848 x 12 = [tex]\frac{12}{y}[/tex] x 12
⇒ 11.82 = y
07:5
Which pair of angles must be supplementary?
VX
2.
6
3
4
5
21 and 26
22 and 25
0 25 and 24
Z6 and 22
Answer:
∠1 and ∠6
Step-by-step explanation:
Supplementary angles are two or more angles added together make 90°.
Right angles indicated by the small square at the corners.
∠2 and ∠5 are right angles.
So, any pair with ∠2 and ∠5 are not supplementary.
The only pair of angles that are not associated with ∠2 and ∠5 is: ∠1 and ∠6.
Thinking about the table...Why does this
table start at zero? Why aren't there any
negative numbers in the DOMAIN?
Answer:
Why does this table start at zero?The vertical axis on trending charts should almost always start at zero. The reason it's almost always is because you may have trending data that contains negative values or fractions. In those situations, it's generally best to keep Excel's default scaling.
Why aren't there any negative numbers in the DOMAIN?There are no domain restrictions, even though there is a variable under the radical. Since , can never be negative. The least it can be is , so there is no danger of taking the square root of a negative number.
Step-by-step explanation:
Hope it is helpful....
A bakery sold 210 vanilla cupcakes in a day, which was 42% of the total number of cupcakes sold that day. How many total cupcakes did the bakery sell that day?
PLEASE DONT SAY RANDOM ANSWERS ILL GIVE 15 POINTS
Answer:
88.2 is your answer.
Answer:500
Step-by-step explanation:on delta math
PLEASE HELP! What is the largest number represented on the stem and leaf plot ?
Answer:
44
Step-by-step explanation:
remember stem equal tens place and leafs equal the ones place
so we can conclude that the largest number would be 44
Answer:
44
Step-by-step explanation:
To read a stem leaf plot, the stem portion will represent the tens place and the leaf portion represents the ones place. Therefore, the largest number represented by this plot would be 44.
Sally earns graduated commission on her sales each month. She earns 6% commission on the first $45,000 in sales and 8% on anything over that. If Sally had $51,000 in sales this month, how much commission did she earn?
a.
$4,080
b.
$3,180
c.
$3,060
d.
$2,820
Answer:
Sally earns graduated commission on her sales each month. She earns 6% commission on the first $45,000 in sales and 8% on anything over that. If Sally had $51,000 in sales this month, how much commission did she earn?
a. ) $4,080 b. ) $3,180 <<<CORRECT c. ) $3,060 d. ) $2,820
Step-by-step explanation:
Edge 2021
Factorise
7lm - 21lmn
Answer:
7lm - 21lmn
taking common 7lm
7lm(1-3n)
(-4)-(-2)-{(-5)-[(-7)+(-3)-(-8)]}
Answer:
1
Explanation:
I used the calculator.
In a sale the price of a bike is reduced by 40% the sale price of the bike is £192 how much did the bike cost before the sale?
help 10 points to solve please
Answer:
A, B, & C are true.
Hope this helps & have a great rest of your day!
Answer:I believe the answer is A,B,C
Step-by-step explanation:
PLZ HELP!! WILL MAKE BRAINLIEST!!!
Answer:
formula is 6a²= surface area
but since one side is not being painted it is
5a²= surface area
5(3.2)²
=51.2cm
PLEASE BE REALLY QUICK ILL GIVE BRAINLYIST JUST HURRY I HAVE 5 MINUTES!!!
Match each equation to the property it illustrates.
associative property
8 X 4 = 48
identity property of multiplication
9 + 0 = 9
distributive property
(16)(1) = 16
identity property of addition
(2 + 6) + 3 = 2 + (6 + 3)
commutative property
2(3 + 7) = (2)(3) + (2)(7)
Checking Understanding
Quick
Check
Answer:
associative = (2 + 6) + 3 = 2 + (6 + 3)
commutative = 8x4=4x8
distributive is the one with 2(3+7)
identity of addition 9+0
identity of multiplication (16)(1)
natasha has a sales job and receieves $60,440 as her annual pay plus commission. her company pays her a commision of 12% on her total sales if she makes sales of $70,000 in the first 3 months how much will she be paid for those 3 months?
Answer:
$68,840
Step-by-step explanation:
70,000*12%=8,400
8440+64,440=$68,840