Answer:
5
Step-by-step explanation:
9n - 18 = 22 + n
8n = 40
n = 5
Katherine uses 7/10 of a gallon of red paint to paint 3/5 of her wall how many gallons of red paint will she use to paint her whole wall
Answer:
She used 7/10ths of a gallon to paint 3/5this of her wall
Step-by-step explanation:
I am assuming thats 7/10ths of a gallon... but you are missing part of the question... how much got painted? 3 of her walls? if so how many walls are there and are thy the same size.... or is that 1/3rd of her wall?
This is the last one day tyigyyydgpitxgif
1/2 divided by 17/10
Answer:
0.71428571428
Step-by-step explanation:
i did the problem and this is what i got
(a)
Find the determinant D of the 3 X 3
D=|2 1 -1 |
|-1 2 -3|
|1 0 2 |
(b)
Use the determinant in D to find the values of x, y and z if Dx = 18, Dy = 27 and D2 = -36.
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Answer:
D = 9(x, y, z) = (2, 3, -4)Step-by-step explanation:
A suitable calculator can compute the determinant for you. It is ...
D = 9
Then the values of x, y, z are ...
(x, y, z) = (Dx, Dy, Dz)/D = (18/8, 27/9, -36/9)
(x, y, z) = (2, 3, -4)
I need some help please
Answer:
B
Step-by-step explanation:
Nickels are 5% out of a dollar being .05 and quarters being 25% of a dollar,
Showing that there are .05n as a number of nickels and .25q being the number of quarters in his pocket.
Find angle 1. I’m having trouble on this problem pls help
Answer:
45
Step-by-step explanation:
[tex]180 - 76 - 59 = 45[/tex]
i think this is the answer
Yessir ksksksksk. Skskskks skims
Answer:
hhhh
Step-by-step explanation:
which of the following is a solution for x2-4x+7=0
Answer:
3.3166 That’s your answer
Solve for t. The radical equation is below.
Answer:
d
Step-by-step explanation:
√52 - t = 72
t = 72 + √52
t= 72 + √(13•4)
t= 72 + 2√13
Answer:
[tex]t = 2 \sqrt{13} - 72[/tex]
Step-by-step explanation:
[tex] \sqrt{52} - t = 72 \\ t = \sqrt{52} - 72 \\ \sqrt{52 } = 2 \sqrt{13} \\ t = 2 \sqrt{13} - 72[/tex]
How would I solve this question
What is the unit cost per bottle if a pack of 4 bottles of juice sells for $3
Answer:
1 1/3
Step-by-step explanation:
it's division 4 divided by 3 attest I think so
The math club had to pay a $12 set up fee for club T-shirts plus $5 per shirt.
Formulate an equation. Let s represent the number of t-shirts and C the cost.
A mathematical sentence with an equal sign is called an EQUATION. It is a relationship showing that two expressions have the same value.
16 ounces = 1 pound,3(x-5)=16, and 3(2) + 7 = 16-3
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You roll a fair 6-sided die.
What is P(roll less than 4)?
If necessary, round your answer to 2 decimal places.
Answer:
66.67%
Step-by-step explanation:
1. Divide 1/6=0.16666666666
2. Multiply 0.16666666666*4=0.66666666664
3. Round 0.66666666664=66.67
4. Answer 66.67%
An object is launched at 20 m/s from a height of 65 m. The equation for the height (h) in terms of time (t) is given by h(t) = -4.912 + 20t + 65. What is the
object's maximum height?
Answer:
The maximum height is the y-value of the vertex.
h(t) = -4.9t² + 20t + 65
a=-4.9 b=20 c=65
h(2) = -4.9(2)² + 20(2) + 65
= -19.6 + 40 + 65
= 85.4
Step-by-step explanation:
(−7) ⋅ (−4)
will give thanks
Answer:
28
Step-by-step explanation:
Answer:
28
Step-by-step explanation:
- times a - is a positive
Which graph shows a proportional relationship???
Answer:
D :)
Step-by-step explanation:
Name
Class:
Find the place value of a digit in a whole numbe
1.
What is the value of 5 in 857,963 ?
5 is in the
place.
5 has a value of
What is the Value of 5 in 857,963
A.10,000
B.1,000
C.100
Answer: A
Step-by-step explanation: replace each number with a 0 and replace the 5 with a 1
The perimeter of a rectangle is 85 ft. The length of the rectangle is two (x plus 16) and the width is 3x - 1. What is the length of the rectangle?
Answer:
The length of the rectangle is 27 ft.
Step-by-step explanation:
To determine the length of the rectangle, we will first determine the value of x.
From the question,
The length of the rectangle is 2x + 16
The width is 3x - 1
and the perimeter is 85 ft
From the formula for perimeter of a rectangle which is given by
P = 2(l+w)
Where P is the perimeter
l is the length
and w is the width
Then, we can then write that
85 = 2(2x+16 + 3x - 1)
85 = 2(5x + 15)
85 = 10x + 30
10x = 85 - 30
10x = 55
x = 55/10
x = 5.5 ft
Since the length of the rectangle is 2x+16, substitute the value of x
Therefore
l = 2x + 16
l = 2(5.5) + 16
l = 11 + 16
l = 27 ft
Hence, the length of the rectangle is 27 ft.
2/3 - 4X +7/2 = -9X +5/6
Answer:
X = - 2/3
Step-by-step explanation:
Answer:
Nvm
Step-by-step explanation:
- 2/3
HELP!!!! PLZ!!! I am struggling
Answer:
i would say -1/2
Step-by-step explanation:
the markup rate is the constant of proportionality in the equation y =kx. Write an equation that can be used to find the amount of markup on the cost x of a phone
Answer:
8.98
Step-by-step explanation:
8=7
Answer:
i think its 1
Step-by-step explanation:
Add.
7/10+2/5+3/4
7/10
12/19
1/15
1 17/20
Answer:
37 /20
Step-by-step explanation:
Simplify Your equation
7 /10 + 2/ 5 + 3/ 4 =
37 /20
(Decimal: 1.85)
Answer:the last one
Step-by-step explanation:
At the Town Savings Bank, a new customer earns $2,950 in simple interest on a $5,000 deposit over the first 10 years. What rate of interest does that bank pay?
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Answer:
5.9%
Step-by-step explanation:
The interest rate formula is useful:
I = Prt . . . . interest on amount P at rate r for t years
2950 = 5000·r·10
r = 2950/50000 = 0.059 = 5.9%
The bank pays 5.9% interest.
find the measures of one interior angle and one exterior angle of a regular polygon with 8 sides
one interior angle__________ one exterior angle___________
Answer:
one interior angle 135
one exterior angle 45
Step-by-step explanation:
Total measure of all angles in a 8 sided regular polygon = (n - 2)* 180
= ( 8 - 2 ) * 180
= 6 * 180
= 1080
Measurement of one interior angle = 1080 / 8 = 135
Interior angle and exterior angle make linear pair.
Measurement of one exterior angle = 180 - 135 = 45
Explain how to decide if 40 degrees and 400 degrees are co-terminal angles.
Answer:
To find conterminal angles to your given angle, you need to add or subtract a multiple of 360°
For example, 30°, -330°, 390° are all conterminally
Maria played a game with her little sister for 25 hour and read her little sister a book for 58 hour.
What is the best estimate for the total time Maria spent with her little sister?
Drag and drop an answer into each box to correctly complete the sentences.
25 hour is closest to . 58 hour is closest to . Therefore, the best estimate for the total time Maria was with her sister is close to .
Answer:
90
58 is closer to 60 and 25 is closer to 30. So when you add them you get 90.
Fred started a new e-commerce business and borrowed 15000 for 12 years to get the business up and running. The interest is 18000. Find the rate
Answer:
The rate is 6.94 %
Step-by-step explanation:
Given;
Amount borrowed by Fred to start up the e-commerce, P = 15000
time of investment, t = 12 years
interest, I = 18000
The rate is given by the following equation;
P = IRt
R = P / It
where;
R is the rate
P is the principal
I is the interest
t is the time
R = (15000) / (18000 x 12)
R = 0.0694
R = 6.94 %
Therefore, the rate is 6.94 %
Devaughn is 6 years older than Sydney. The sum of their ages is 70. What is Sydney's age?
Answer:
29
Step-by-step explanation:
if you take 70 and divide it by 2 (cuz there are 2 People) then subtract 6 (because ones 6 years older) then you get 29
70/2=35-6= 29
Sydney is 32 and Devaughn is 38 32 + 38
A couple stars please.
Suppose the polynomial function f has a zero at x = -3. Which of the following statements must be true?
a) (3,0) is an x-intercept of the graph of f.
b) (0,3) is a y-intercept of the graph of f.
c) x - 3 is a factor of f(x).
d) f(-3) = 0
Answer:
d) f(-3)=0
Step-by-step explanation:
Given that f is equal to zero at x=-3
So, f(-3)=0
You play a where you draw one card from a standard deck of playing cards. If you pick a diamond, you win $10. If you pick a face card, which is not a diamond, you win $6. If you pick any other card, you lose $5. How much money do you expect to win?
Answer:
expected value = (13/52)(10) + (9/52)(8) + (30/52)(-6) = $.42
expected value is you win $.42, so you want to play
Step-by-step explanation:
32 of 40% is of what number
Answer:
80
Step-by-step explanation:
40% × ? = 32
? =
32 ÷ 40% =
32 ÷ (40 ÷ 100) =
(100 × 32) ÷ 40 =
3,200 ÷ 40 =
80