we can't see the triangles
The $150 cell phone Anthony purchased was on sale for 15% off. What amount did Anthony save?
Answer:
22.5 that is the answer
Hope this helps can i get the brainliest???
Step-by-step explanation:
Gavin rides his bike to and from his grandparents each day. The one-day trip is 2.15 kilometers. How many kilometers will he travel in 4.5 days?
Answer:
Number of kilometers= 9.68 km
Step-by-step explanation:
Giving the following information:
Total trip= 2.15 kilometers
Number of days= 4.5 days
To calculate the total number of kilometers traveled in 4.5 days is calculated using the following formula:
Number of kilometers= kilometers per day*number of days
Number of kilometers= 2.15*4.5
Number of kilometers= 9.68 km
WILL MARK AS BRAINLIEST PLEASE HELP!!!
Step-by-step explanation:
2x = y-10
Rewrite as: 2x + 10 = y
Therefore:
2x+10 = y
2x +7 = 2y
Subtract the equations:
2x + 10 = y
- 2x + 7 = 2y
______________
3 = -y
Therefore y = -3
Substiture y = -3 into the second equation:
2x + 7 = 2(-3)
2x + 7 = -6
2x = -13
x= -6.5
Answer : (-6.5, -3)
Answer:
(-13/2,-3)
Step-by-step explanation:
First you want to isolate y from 2x=y-10 or 2x+7=2y. In this case, I picked 2x=y-10 so I added 10 on each side to make y=2x+10. Because we know what y is equal to, we have to plug that into the other equation which is 2x+7=2y so the equation will look like 2x+7=2(2x+10). Simplify this to get 2x+7=4x+20. Simplify this again to get 2x=-13. Divide 2 by each side to get x=-13/2. Then, you have to -13/2 back into one of the equations. In this case, I picked 2x+7=2y so the equation will look like this. 2(-13/2)+7=2y. Simplify this to get -13+7=2y. Simplify again to get -6=2y. Simplify this again to get y=-3. Therefore, x=-13/2 and y=-3. To put it in ordered pair form which is (x,y). Plug that in to get (-13/2,-3).
If this has helped you, please mark the is brainliest
Can anyone help me solve these equations?
1. 2x + 6 + x -12
2. 1/2 (6x -8) = 3x
3. 5x +1 = -2x -8
fix the first one,theres no equal sign, and ill solve it
PLEASE HELP
Find tan (QRS)
Answer:
A. [tex] \frac{\sqrt 3}{3}[/tex]
Step-by-step explanation:
[tex]m\angle QSR = 180\degree - 150\degree \\ (Linear \: pair\: \angle s) \\ \\m\angle QSR = 30\degree \\ \\ \tan( \angle QSR) = \tan \: 30 \degree \\ \\ = \frac{1}{ \sqrt{3} } \\ \\ = \frac{ \sqrt{3} }{3} [/tex]
Answer:
because
TSR + QSR = 180⁰
<=> 150⁰ + QSR = 180⁰
=> QSR = 30⁰
so
[tex] \tan(qsr) = \tan(30) = \frac{ \sqrt{3} }{3} [/tex]
If 1700 square centimeters of material is available to make a box with a square base and an open top, find the largest possible volume of the box.
Answer:
[tex]V = 6746.30cm^3[/tex]
Step-by-step explanation:
Given
[tex]Surface\ Area = 1700cm^2[/tex]
Required
Determine the largest possible volume
Represent the dimension with:
[tex]Height = h[/tex]
[tex]Sides = x[/tex]
Surface Area with an open top is:
[tex]Surface\ Area = x^2+ 4hx[/tex]
Substitute 1700 for Surface Area
[tex]1700 = x^2+ 4hx[/tex]
Make h the subject
[tex]4hx = 1700 - x^2[/tex]
[tex]h = \frac{1700 - x^2}{4x}[/tex]
The volume (V) is calculated as:
[tex]V = x^2h[/tex]
Substitute value for h in [tex]V = x^2h[/tex]
[tex]V = x^2*\frac{1700 - x^2}{4x}[/tex]
[tex]V = x*\frac{1700 - x^2}{4}[/tex]
[tex]V = \frac{1700x - x^3}{4}[/tex]
[tex]V = \frac{1700x}{4} - \frac{x^3}{4}[/tex]
[tex]V = 425x - \frac{x^3}{4}[/tex]
[tex]V = 425x - \frac{1}{4}x^3[/tex]
Differentiate and equate to 0, afterwards
[tex]V' =425 - \frac{3}{4}x^2[/tex]
[tex]425 - \frac{3}{4}x^2 = 0[/tex]
[tex]\frac{3}{4}x^2 = 425[/tex]
Solve for [tex]x^2[/tex]
[tex]x^2 = 425 * \frac{4}{3}[/tex]
[tex]x^2 = 566.67[/tex]
Take the square root of both sides
[tex]x = \sqrt{566.67[/tex]
[tex]x = 23.80[/tex]
Substitute 23.80 for x in [tex]h = \frac{1700 - x^2}{4x}[/tex]
[tex]h = \frac{1700 - 23.80^2}{4*23.80}[/tex]
[tex]h = \frac{1133.56}{95.20}[/tex]
[tex]h = 11.91[/tex]
So, the largest possible volume is:
[tex]V = x^2h[/tex]
[tex]V = 23.80^2 * 11.91[/tex]
[tex]V = 6746.30cm^3[/tex]
The area of a basketball court is 4500 ft2. The width is 50 feet. Find the length
Answer:
90ft
Step-by-step explanation:
Area = Width x Length
Length = Area/Width
Length = 4500/50
Length = 90
Hope this helps buds!!
Factors of 8x³ + 27y³ are ?
Answer:
8x³ + 27y³
(2x)³+(3y)³
(2x+3y)((2x)²-2x.3y+(3y)²)
(2x+3y)(4x²-6xy+9y²)
Answer:
Step-by-step explanation:
There are a few patterns you will come to recognize, such as the “sum of cubes” and its factorization:
a³ + b³ = (a+b)(a² - ab + b²)
8x³ + 27y³ = (2x)³ + (3y)³
= (2x+3y)((2x)² - (2x)(3y) + (3y)²)
= (2x+3y)(4x² - 6xy + 9y²)
6x + 7b - 7x + 10x
What is the answer to this question?
Answer:7b+9x
Step-by-step explanation:hope I helped
The lot is 48 feet wide.
The dividers are each 2 feet wide.
9. Naomi bought fabric on sale for $3.20 per
yard. If she spent less than $40, how many
yards did purchase
Inequality
Solution
HELP WILL MARK BRAINLEST TO THE FASTEST ANSWER HELPPPPPPPPPPP
Answer:
x < 12.5 but see below. This is not a straight forward question.
Step-by-step explanation:
Inequality
3.20x < 40
Solution
Divide by 3.2
40 / 3.2 x < 12.5
Here's the question. What do you do with the 0.5? If you think she can buy 1/2 a yard (I think she might be able to in most places stocking bolts of material), then the 0.5 stays.
If you think she can only buy whole yards, then the answer is 12. Since the question does not make it clear, I would go with 12.5 yards. If it marks you wrong then you go with 12.
The question is an inequality. She has to buy less than 12.5
Find the third angle of a right triangle if the measure of one
of the angles is 25º.
Answer:
hi
Step-by-step explanation:
Answer:
65
Step-by-step explanation:
Just add 25 to 90 and remember a triangle's angle mus always add to 180
Suppose a triangle has angle measures of 29 degrees and 52 degrees. What is the measure of the third angle?
Answer:
99 degrees
Step-by-step explanation:
all triangles equal 180 degrees total. add up the 2 angles you know (29+52) then subtract it from 180. 180-81=99
does anybody know this?
Answer:
1/3
Step-by-step explanation:
The two points are (2, -1) and (-1, -2).
Slope is y change over x change.
So... -2-(-1) over -1-2 which is -2+1 over -3
Slope is -1/-3
The answer is 1/3.
Hope this helps :D
Answer:
slope: change in y/ change in x
you have to mark at each point where the line crosses, and make a figure with the points that you mark.
Graph these systems of equations y=-3x-7 y=x+9
I've attached a picture down below that will help you with this question. Please reach out to me if you have any further questions :)
i just need help with the equation! i think i have it i just need to be sure
sales of 10 000 increase by 65 each year
Answer:
Whats the question
Step-by-step explanation:
also if you are looking for the unit rate its 153.846...
or if you are looking for how many in 2 years then 650,000
Hope this helps
Have a nice day :)
Martin got a haircut yesterday if he pad $27 and left an 18% tip, what was the total bill
======================================================
Work Shown:
x = total bill amount ignoring the tip
18% of x = 0.18x = tip amount
x+0.18x = 1.18x = amount Martin paid = 27
1.18x = 27
x = 27/1.18
x = 22.8813559322033 approximately
x = 22.88 dollars was the total bill.
----------
Checking the answer:
18% of 22.88 = 0.18*22.88 = 4.1184 = 4.12
Martin left a tip of $4.12
Add this on top of the bill to get 22.88+4.12 = 27
This matches with the fact he paid $27.
The answer is confirmed.
Help me on this plzzzz :((((((
Answer:
A. A
Step-by-step explanation:
find each unit rate: 715 miles per 55 hours
Answer:
13 miles an hour
Step-by-step explanation:
NEED HELP ASAP
evaluate each expression for the given value(s) of the valube(s)
c-:2 when c=26
5(9+d)-6 when d=3
g^(2)+23 when g=6
3h-j when 8 and j=11
(n-2)× m when n= 5 and m=9
r(s^(2))(t)=2,s=3, and t=5
Answer:
times 3
Step-by-step explanation:
add 8 and plus the 10
Express a^x = 3 to logarithm form.
Step-by-step explanation:
a^x = 3
[tex] log_{a}(3) = x[/tex]
if cut log and the base is cross with x above
you will receive
3 = a^x
or a^x = 3
answer the question. please!!!!!!!!!!!!!!!!!!!!!!
Answer:
I believe that the answer would be A. Yes, please forgive me if this is wrong
Step-by-step explanation:
Answer:
b. yes
Step-by-step explanation:
RS² + TS² = 25 + 144 = 169
TR² = (TU + UR)² = (8+5)² = 169
RS² + TS² = TR²
∠RST = 90° (RS ⊥ TS): TS tangent to circle R
There are 100 calories in 8 fluid Ounces of orange juice and 140 calories in 8 fluid Ounces of pineapple juice. Tia mixed 4 fluid Ounces of each juice. Complete and solve the equation to find the number of calories in each fluid Ounce of Tia's juice mixture. 140 = 8x 2 X= There are calories in each fluid ounce of Tia's juice mixture.
Answer:
15 calories
Step-by-step explanation:
Number of calories in 8 ounces of orange juice = 100
Number of calories in 1 ounce of juice = 100/8
Number of calories in 4 ounces of juice = 100/8 x 4 = 50 calories
Number of calories in 8 ounces of pineapple juice = 140
Number of calories in 1 ounce of juice = 140/8
Number of calories in 4 ounces of pineapple juice= 140/8 x 4 = 70 calories
Now the mixture has 50 + 70 = 120 calories in 8 ounce.
So, 1 ounce of mixture has 120/8= 15 calories.
37 + 15r > or equal to 127, what is the answer?
Answer:
r ≥ 6
Step-by-step explanation:
37+15r ≥ 127
-37 -37 37 cancels and you're left with 15r
15r ≥ 90
/ 15 /15 15 cancels and you're left with r
r ≥ 6
Lauren invests money in an accout paying simple interest.She invests $50 and no money is added or removed from investments.After one year she has $50.50.What is the simple percent of interest per year
Answer:
1%
Step-by-step explanation:
\text{\color{blue}{100\%} represents the \color{blue}{starting balance}: \color{blue}{\$50}.}
100% represents the starting balance: $50.
Method 1
Express the ending balance as a percentage of the starting balance:
\frac{\color{darkviolet}{\$50.50}}{\color{blue}{\$50}}=
$50
$50.50
=
\,\,1.01
1.01
1.01\times100=
1.01×100=
\,\,\color{darkviolet}{101\%}
101%
\text{Subtract the starting \color{blue}{100\%} to get the \color{green}{percent interest}:}
Subtract the starting 100% to get the percent interest:
\color{darkviolet}{101\%}-\color{blue}{100\%}=
101%−100%=
\,\,\boxed{\color{green}{1\%}}
1%
Need help quick please!!!
Could you please explain the answers to both questions? Thanks!
if all the areas of the spinner are the same size, what is the probability the spinner will land on a spuare? WRITE AS A PERCENT
The equation y = 5x +7 models the number of Beanie Babies (y) that Mr. Crawford owns each month(x).
When will Mr. Crawford own 217 Beanie Babies?
Answer:
217 ???????
Step-by-step explanation:
Help please
Show work if possible
Brainiest answer to whoever is first
Answer:
multiply each side
15 x 7 x 10= 1050
I hope this helps
Step-by-step explanation:
W = 7cm
L= 15 cm total
Underneath L = 10cm
top side of pentagon to the bottom right =
15 - 10 = 5cm
So - 7 x 15 = 105
And - 10 x 5 = 50
Then - 105 + 50 = 155cm²
I Haven't done this in a while