Answer:
x= 95/2 or x=47.5 or 47 1/2
Step-by-step explanation:
3x + 10 = 5(x - 17)
First Step:
multiply and combine the right side (parentheses)
5 times x = 5x 5 times -17 = -85
3x + 10 = 5x -85
Second Step:
Add like terms ----> which is: 3x and 5x -----10 and -85
BUT since you only want one x on one side, you combine x first.
3x + 10 = 5x -85
-5x -5x
-2x + 10 = -85
NOW
Third Step: Add the integers---> 10 and -85
you want to get 10 on the same side as the -85, so you subtract it from BOTH sides.
which brings you:
-2x + 10 = -85
-10 -10
NOW that we've subtracted -10 from -85 it's technically just adding 85 and 10 then putting a negative sign on it.
so now we have:
-2x = -95
Step Four:
divide -2 from each side to get X alone
-2x = -95
-2 -2
ANSWER:
x=47.5
7. Triangles CDE and RST are similar triangles. What is
the length of side CD in triangle CDE?
R
40 ft.
32 ft.
20 ft.
T
S
Answer:
CD = 25 ft
Step-by-step explanation:
[tex] \triangle CDE \sim \triangle RST[/tex]
[tex]\therefore \frac{CD}{20}=\frac{40}{32}[/tex]
(Corresponding sides of similar triangles are in proportion)
[tex]\therefore \frac{CD}{20}=\frac{5}{4}[/tex]
[tex]\therefore CD = \frac{5}{\cancel 4}\times \cancel {20} \:\:\blue{\bold{5}} [/tex]
[tex]\therefore CD = 5\times 5[/tex]
[tex]\therefore CD = 25\: ft[/tex]
Answer:
CD = 25 ft
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
[tex]\frac{CD}{RS}[/tex] = [tex]\frac{CE}{RT}[/tex] , substitute values
[tex]\frac{CD}{20}[/tex] = [tex]\frac{40}{32}[/tex] ( cross- multiply )
32CD = 800 ( divide both sides by 32 )
CD = 25
83% of what number is 240? Round the answer to the closest tenth.
Connor downloads songs for $1.00 each. His cost is shown on the graph, along with Lanise's costs. If Connor downloads 12 songs, how much could he save if he switched to Lanise's plan?
A. $5
B. $12
C. $6
D. $1
The graph isn't included in this answer,but if he downloads 12 songs,his total will be 12 dollars spend, Assuming that Lanise's plan is cheaper than Connor's it would have to be between A,B with a possibility of D.
PLEASE ADD GRAPH
Answer:
C. $6
Step-by-step explanation:
I need help on this PLEASE!!
Answer:
I can't solve this completely for you, but I'll help you figure it out.
Step-by-step explanation:
All you need to do is choose a number to plug in for x, I'd start with zero and work my way up. Do this for all equations to solve for solutions to your problem.
On a map, 5 centimeters is equal to 140 kilometers. How far apart are two towns which are 18 centimeters apart on the map? A.39kilometers B.163 C.230kilometers D.504Kilometers
Answer:
504
Step-by-step explanation:
140 divided by 5 is 28 so for every centimeter there is 28 kilometers so 18x28=504
A density graph for all the possible speeds between 0 mph and 320 mph is in the shape of a triangle. What is the height of the triangle?
A. 0.025
B. 0.0125
C. 0.003125
D. 0.00625
The height of the triangle is 0.00625.The correct option is D
To solve this problem
A density graph must have an area under it equal to 1. The range of speeds in this problem, 320-0 = 320, is the base of the density graph, which is shaped like a triangle. By multiplying the base by half of the triangle's height, we can determine the density graph's area.
Let h represent the triangle's height. The triangle's area is then:
1 = (1/2)320h
calculating h:
h = 1 / (320/2) = 0.00625
Therefore, option D is appropriate because the triangle's height is 0.00625.
Learn more about multiplying here : brainly.com/question/28773316
#SPJ1
During swim practice Brand swim six butterfly stroke laps and eight freestyle Laps. What is the ratio of freestyle apps to total laps? A. 6:14 B. 8:6 C. 8:14 D. 14:8
Answer:
C) 8 : 14
Step-by-step explanation:
From the Question, we have
Six butterfly stroke laps
Eight freestyle Laps.
Total number of laps = (6 + 8)laps
= 14 laps
Hence,
The ratio of freestyle laps to total laps is:
Freestyle laps : Total laps
= 8 : 14
Option C is correct.
Jane paid $40 for an item after she received a 20% discount. Jane's friend says this means that the original price of the item was $48. a. How do you think Jane's friend arrived at this amount?
Answer:
The discount is $8
Step-by-step explanation:
Step one
Given data
Jane paid $40 for an item after she received a 20% discount.
Required
The initial cost of the item
Now in other to check whether Jane's friend is correct, let us solve for the initiai cost as follows
Let the initial cost be x
so
20% of 40
20/100*40
=0.2*40= $8
Therefore the discount is $8
hence the original price is
discount+ discounted sale(amount paid)
=8+40
=$48
Round to the nearest tenth. 1.598 *
Answer:
1.6
Explanation:
1.598
Round from the nearest tenth
1.59
If the number in the hundredths place is higher then 5 then add one to the tenths place.
1.6
If the price tag on a trumpet says $104, how much did the store pay for it?
Answer:
I think 1.04
Step-by-step explanation:
what is the equation in slope intercept form of a line that has a slope of -1/2 and a y intercept of 6?
Answer:
y=-1/2x + 6
Step-by-step explanation:
I can't see the picture because it is blurry but i got y=-1/2x + 6
How do I graph it please help
Answer:
Desmos
Step-by-step explanation:
There is a graphing calculator called "Desmos" Look it up type the equation and it will show you
Answer:
you would graph the line at 2
Step-by-step explanation:
because adding 5 to negative three takes it up to 0 then to 2
Can I get some help plz thank u sm
Answer:
x = 72
hope it helps
Plz help me out it would be a help
Answer:
question 2 answer. option. a. 55
Step-by-step explanation:
diameter of semi circular window is 35 inches
the radius is 17.5
perimeter of semicircular window =pie x radius
= 22 /7 ×17.5
=55 inches
Use the bar graph to find the experimental probability of the event.
The experimental probability of spinning a number less than 3 is __.
Please help, I'll give brainliest and 20 points
I’ll give you BRAINLEST PLEASE HELP
Answer:
Help with what?
Step-by-step explanation:
what is the value of y intercept of the graph of h(x)=32(2.9)^x
Answer: 32
Step-by-step explanation:
hi :)
I WILL GIVE YOU BRAINLY PLSS
What is the solution of x + 6 11
C. x –1
PLSS SHOW YOUR WORK PLSS
Answer: x < -1
Step-by-step explanation:
x + 6 < 5
x + 6 = 5
x = -1
x < -1
Now try to prove its correct
A number less than -1 is -2 so we'll try that.
x + 6 < 5
(-2) + 6 < 5
4 < 5
We can tell after substituting -2 for x, that the answer is correct
Oh and I changed the less than sign to an equal sign so it's easier to solve.
Does that help?
Plz help and I will give brainliest
A family wants to save $100 each month. They record their progress toward this goal at the end of each month. In January they saved $120 and recorded 1$20 at the end of the month. What should they record for the month of February if they only saved $80 that month? Explain.
If you put anything random as the answer I WILL report
Answer:
200 dollars
Step-by-step explanation:
Answer:
$200.
Step-by-step explanation:
$200 because if they save $120 then $80, $200.
(120+80=200.)
Hope this helps plz hit the crown :D
sorrry for not answering earlier
Solve for x using any method!
4x – 9 = 15
a
x = 4
b
x = 1
c
x = 20
d
x=6
please hurryyyyyy
Answer:
d
Step-by-step explanation:
Answer:
D. x=6
Step-by-step explanation:
4x-9=15
Add 9 on both sides
Now the equation will be
4x=24
Divide 4 on both sides which will end up giving you
x=6
Rectangle A has side lengths of 6 cm, and 3.5 cm. The side lengths of
rectangle B are proportional to the side lengths of rectangle A. What could
be the side lengths of rectangle B? *
5 cm and 2.5 cm
3 cm and 1.75 cm
12 cm and 5 cm
Answer:
3 cm and 1.75 cm
Step-by-step explanation:
the numbers have to coincide with the ones being compared in the same amount. like 3×2=6 and its the same with 1.75×2=3.50
Billy reads 75 pages of a novel in 50 minutes. At this rate, how many hours will billy spend reading the entire 350-page novel?
Answer:
8hours 45minutes
WORKING OUT
75÷50=1.5
so 1 page would take 1.5 minutes
1.51 x 350= 525 minutes
8.75 hours
this is for jassy sleepy and.., umm some one els with an ice cream avitar.
Answer: hi :) I have an icecream
Step-by-step explanation:
Please Answer
Simplify each radical
whats the area of 8ft, 6ft and 2ft?
Answer:
96
Step-by-step explanation:
8x6=48
48x2=96
What is the measure of angle F in degrees?
The local take-out pizza place sold 50 pepperoni pizzas last month. They sold 6% more pepperoni pizzas this month than last month. How many pepperoni pizzas did they sell this month? *
Answer:
53 pepperoni pizzas
Step-by-step explanation:
To find the value, multiply 50 by 1.06. This gets us 53.
Express the ratio in it's simplest form:
4n/n^2
Simplify the expression.
4/n
plz help i need help
Answer:
215 r 12. sorry if i am wrong
Step-by-step explanation:
i think.
would u like to watch naruto or boruto?
so my question won't delete im gonna put math equations also don't say answer for the equations there just examples 2x3x4x5
also u might get brainliest
Answer:
naruto
Step-by-step explanation:
65
Answer: Naruto for sure
Step-by-step explanation: 2x3x4x5= 120