Answer:
x = -15
Step-by-step explanation:
6x +12 = 4x - 18
-4x -4x
2x + 12 = -18
-12 -12
2x = -30
2 divided by x -----------> 2 divided by -30 = -15
x = -15
Hope this Helps!!!!!
What is the domain of this relation? (4, 14) (1, –7) (4, 7) (1, 14)
Answer:
4, 1, 4, and 1
Step-by-step explanation:
when a problem asks for the domain, it's basically asking for the x coordiantes (range = y coordinates)
Evaluate the expression 2 x (3 + 1) + 2.
Answer:8x+2
Step-by-step explanation:
Kent can paint a room in twice as fast as Luannda. Together they can paint the room in 5 hours. How long would it take Kent to paint the room alone? Write an equation to solve
Answer:
for kent it would be [tex]\frac{1}{5}[/tex]
Step-by-step explanation:
The computation is shown below:
Let us assume Luannda be [tex]\frac{x}{1}[/tex]
And for kent be 2x
Together they take 5 hours
So
[tex]\frac{x}{1} + \frac{2x}{1} = 5\ hours\\\\3x = 5\\\\x = \frac{5}{3}[/tex]
So for kent it would be [tex]\frac{1}{5}[/tex]
A building is 456 feet tall and 95 feet wide. If a scale model of the building is 12 inches tall, what
is the width of the scale drawing?
A.
3.1
B.
2.8
C.
2.5
D.
2.1
B
Ob
D
C С
od
4
Answer:
I think the answer is C
Step-by-step explanation:
456÷12= 38
95÷38= 2.447 (about 2.5)
I have 2 lines in this graph I need to know which line has a slope of one and which has a slope of 2
Answer:
what graph
Step-by-step explanation:
I'm not sure how to factor this
In ΔHIJ, the measure of ∠J=90°, HI = 8 feet, and JH = 1.9 feet. Find the measure of ∠H to the nearest tenth of a degree.
Answer:
21.9°
Step-by-step explanation:
In ΔHIJ, the measure of ∠J=90°, HI = 8 feet, and JH = 1.9 feet. Find the measure of ∠H to the nearest tenth of a degree.
We solve this above question using the Sine rule
a/sin A = b/sin B
In ΔHIJ, the measure of ∠J=90°, HI = 8 feet, and JH = 1.9 feet.
Hence:
HI/∠J = JH/∠H
= 8/sin 90° = 1.9/sin ∠H
Cross Multiply
∠H = arc sin(sin 1.9 × 90/8)
∠H = 21.9°
Benjamin decides to treat himself to breakfast at his favorite restaurant. He orders chocolate milk that costs \$3.25$3.25dollar sign, 3, point, 25. Then, he wants to buy as many pancakes as he can, but he wants his bill to be at most \$30$30dollar sign, 30 before tax. The restaurant only sells pancakes in stacks of 444 pancakes for \$5.50$5.50dollar sign, 5, point, 50. Let SSS represent the number of stacks of pancakes that Benjamin buys.
Answer:
4 stacks of packages
4 * 4 = 16 pieces of pancake
Step-by-step explanation:
Maximum amount to spend ≤ $30
Milk chocolate = $3.25
Pancakes per stack = 5.50 (sold in stacks of 4)
Let number of stacks = s
In equality terms :
3.25 + 5.50s ≤ 30
5.50s ≤ 30 - 3.25
5.50s ≤ 26.75
s ≤ 26.75 / 5.50
s ≤ 4.86
Hence, 4 stacks of pancakes can be purchased
Answer:
3.25+5.50S<30
Step-by-step explanation:
Benjamin can afford at most 16 pancakes
Please help me ASAP , thank you
Write the slope-intercept form of the equation of the line.
slope = -10, y-intercept = 5
Write the slope-intercept form of the equation of the line.
through: (-5,-1), slope = 2/5
Write the slope-intercept form of the equation of the line.
through: (5,0) and (-5,2)
Write the slope-intercept form of the equation of the line.
through: (-5,0), parallel to y = -x + 2
1
Write the slope-intercept form of the equation of the line.
through: (4,1), perpendicular to y = -2x + 5
Answer:
y = -10x + 5 and y = 2/5x + 1
Step-by-step explanation:
slope-intercept form is y = mx + b, where m = slope and b = y-intercept.
for your first problem, just plug in the m and b values to complete the equation.
1.) y = mx + b ⇒ y = -10x + 5
plug in -10 for x (slope) and 5 for b (y-intercept)
and for the second problem...
since you're given a value for slope as well as a coordinate pair, all you need to do is plug those values into the equation for their respective variables and then solve for b. (it doesn't matter what order you plug values in, but i'm going to fill them in in the order of the equation; y, m, and x)
1.) plug in -1 for y
y = mx + b ⇒ -1 = mx + b
2.) plug in 2/5 for m
-1 = mx + b ⇒ -1 = 2/5x + b
3.) plug in -5 for x
-1 = 2/5x + b ⇒ -1 = 2/5(-5) + b
now it's time to solve for b! start by multiplying 2/5 and -5.
-1 = 2/5(-5) + b ⇒ -1 = -2 + b
add 2 to both sides of the equation. on the right side, it cancels itself out. on the left side, adding 2 to -1 gives you 1.
and you're left with 1 = b! :)
therefore, y = 2/5x + 1
i hope this helps! have a great day <3
HELP PLEASE!! I'm giving brainliest to the person who gives me a full correct answer! you'll get 50 points for answering and when i give you brainliest it will give you the other 50 automatically!!!! thank you so much
----------------------------------
1)
Fact :: Reason
∠DCE = 90° :: sin ∠EDC = sin 30° = 1/2 = 8/16 = CE/DE
∠ACB = 90° :: ∠DCE and ∠ACB are vertical angles
∠ABC = 60° :: 180 - ∠CAB - ∠ACB = 60°
∠CED = 60° :: 180 - ∠EDC - ∠DCE = 60°
△CDE ⁓ △ABC :: Same angles (AAA)
2)
Let's solve for AB
sin 30° = 1/2
sin 30° = BC/AB = 15/AB
1/2 = 15/AB ⇒ AB = 30
AB = 30 in
Let's solve for AC (using another way)
AC/12 = 15/8
AC = 12 * 15 / 8 = 22.5
AC = 22.5 in
------------------------------------
Hope I could help you! If there was anything you didn't understand, don't be afraid to ask in the comments below!
Have a good day! (●'◡'●)
Maggie goes to two different stores to shop for t-shirts. Both stores are having a sale.
At Store A, t-shirts are regularly priced at $22 but are on sale for 25% off.
At Store B, t-shirts are regularly priced at $30 but are on sale for 45% off.
Which of the following is true about the sale price of a t-shirt at the two stores?
A. Store B has the better price because 45% is greater than 25%.
B. Store A has the better price because $22 is less than $30.
C. The sale price is the same for both stores.
D. The sale price cannot be determined.
Answer:
store B
Step-by-step explanation:
If NML ~ SRL find the value of x.
Answer:
x = 5
Step-by-step explanation:
Since the triangles are similar, corrresponding sides are in proportion.
[tex]\frac{NM}{SR} = \frac{ML}{RL} = \frac{NL}{SL}[/tex]
Using the equation formed by the second and third fraction above we get
[tex]\frac{28}{24} = \frac{3x - 1}{x + 7}[/tex]
28(x + 7) = 24(3x - 1)
28x + 196 = 72x - 24
44x = 220
x = 5
FREE BRAINLIEST IF YOU ANSWER CORRECTLY!!(jwo26)
Answer:
56 dude
Step-by-step explanation:
Answer:
56!!!!!!
Step-by-step explanation:
vera está usando su teléfono. Su batería está a 2/5 de capacidad, y esta baja 1/9 cada hora. ¿Cuántas horas durará la batería?
Answer:
3.6 hours
Step-by-step explanation:
The computation of the number of hours will the battery last is given below:
Given that
The capacity of her battery is 2 by 5
And, it declines 1 by 9 for every hour
So,
[tex]= \frac{2}{5}\times \frac{9}{1}\\\\= \frac{18}{5}\\\\= 3\frac{3}{5}[/tex]
= 3.6 hours
Complete this statement using >,<, or =
- 12
-41
Answer:
>
Step-by-step explanation:
-12 is closer to 0 than -41 would be therefore -12>-41.
Answer:
>
Step-by-step explanation:
Looking at a number line, -41 is farther from 0 than -12.
See the image below.
The farther left a number is on a number line, the smaller it is.
The farther right a number is on the number line, the larger is it.
So:
-12 > -41
Find RSQ and TSQ I will Brainliest
Answer:
Hey there!
15x-43+8x+18=90
23x-25=90
23x=115
x=5
RSQ=15(5)-43, or 32
TSQ=8x+18, or 58
Let me know if this helps :)
Step-by-step explanation:
Carlos walked to school on 14 of the 20 school days in February. Which value is equivalent to the fraction of the school days in February that Carlos walked to school?
write the equation of the line that passes through the given point and has the given slope.
(4,2) slope=3
I'm asking this question again! Please answer correctly, nonsense will be reported!
PLEASE HELP!!
Solve the inequality:
2x – 3 < x + 2 < 3x + 5
Show your work.
Answer:
2x-3<x+2<3x+5
2x-3<x+2 or 2x-x<2+3 or x<5
x+2=3x+5 or x-3x<5-2 or 2x<3
Step-by-step explanation:
plz brainless
what is the sum
-5.7+ (-4.2)=
please answer
Answer:
-5.7-4.2=-9.9 is answer
Find the value of n that makes equation true.
5n =20
n + 5 = 10
2n = 3
n + 5 = 13
Answer:
5(4) = 20
5 + 5 = 10
2(1.5) = 3
8 + 5 = 13
Step-by-step explanation:
Which set of letters puts the mixed numbers in order from greatest to least?
Answer:
D
PLZ MARK AS BRAINLIEST
Simplify 3f-2f+f I need a answer for that please
Answer:
2f
Step-by-step explanation:
3f-2f+f | Given
1f + f | Subtract 3f and 2f
2f | Add 1f and 1f.
Use the equation below to find the axis of symmetry in the given problem
Look at the image and please help.
ASAP WHO EVER ANSWER THESE WILL BE MARKED BRANLIEST
Answer:
i dont know honestly
Step-by-step explanation:
0/5
X At the neighborhood store, hot dog buns are only sold in packs of 8 for
$0.88. If c(b) represents the cost in dollars to b buns, what is the domain
of c(b)? *
O A) {0, 1, 2, 3, 4, 5, ...)
O B) {0.88, 1.76, 2.64, ...}
O C) {0, 8, 16, 24, 32, ...}
D) Cannot be determined
Answer:
c
Step-by-step explanation:
The choir group is going to a concert and will use 8 vans. There are 23 boys and 25 girls. How many students will fit in each van?
Answer:
6
Step-by-step explanation:
23+25=48
48÷8=6
Someone help please