Answer:
22 hours = hours travelling altogether
Step-by-step explanation:
11 x 2 = 22
could you awnser this please
can someone plz help its homework and due tdy.
Answer:
Hope this will help you.Step-by-step explanation:
Answer: 1: 14
2: -2
3: 3
4: 2
5: 5
6: 6
7: -1
Step-by-step explanation:
17. Distance to Work Johnny gets to work in 20 minutes
when he drives his car. Riding his bike (by the same
route) takes him 45 minutes. His average driving speed
is 4.5 mph greater than his average speed on his bike.
How far does he travel to work?
Answer:
2.25 miles
Step-by-step explanation:
When driving a car time taken is 20 minutes. This is equal to 20/60 hours , 1/3 hours / 0.3 hours
When riding a bike , time taken is 45 minutes. This is 45/60 hours , 3/5 hours/ 0.75 hours
The formula for speed is : Speed = Distance covered / time taken
The statement is that the driving speed is greater than biking speed by 4.5 mph
Assuming the distance to work is x miles then;
x/ 0.3 - x/0.75 = 4.5 ------eliminate 0.3 by multiplying each term by 0.3 to get
x- 0.3/0.75 x = 1.35 -------eliminate 0.75 by multiplying each term by 0.75 to get
0.75 x - 0.3 x = 1.0125
0.45 x = 1.0125
x= 1.0125 / 0.45
x = 2.25
Which one can it be?
Answer:
sas
Step-by-step explanation:
Answer:
These triangles cannot be proven congruent.
Step-by-step explanation:
The image shows us two triangles with two pairs of congruent sides and one non-included angle. This theorem would be SSA, however, this is not enough to show congruency because the unknown side could be in two different places on the different triangles. Therefore, with this amount of information these triangles cannot be proven congruent.
For parties of six or more, a restaurant adds a 20% gratuity (or tip). Ifa
dinner bill for a large party comes to $148.25, find the total dinner bill with
tip.
Answer:
$247.37
Step-by-step explanation:
The total dinner bill with a tip for the large party is $177.90.
What is the Multiplication operation?In mathematics, Multiplication operations perform Multiplying values on either side of the operator.
For example 4×2 = 8
The gratuity for a large party is 20% of the bill, so we can calculate the gratuity by multiplying the bill by 0.2.
Gratuity = bill x 0.2
Gratuity = 148.25 x 0.2
Apply the multiplication operation, and we get
Gratuity = 29.65
To find the total bill, we add the gratuity to the original bill.
Total bill = bill + gratuity
Total bill = 148.25 + 29.65
Apply the addition operation, and we get
Total bill = $177.90
Hence, the total dinner bill with a tip for the large party is $177.90.
Learn more about Multiplication operations here:
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-12x + 20 < -52
PLEASE SHOW THE WORK!
Decrease £2155.45 by 8.5%
Give your answer rounded to 2 DP.
Answer:
2155.45 - 8.5% = 1972.23675. 2 DP = 1972.24
m=-1 and (-6,12)
help pls
Answer:
y = -x +6
Step-by-step explanation:
i honestly didn't know what form you wanted so i put it in slope-intercept form for you :D
formula for slop-intercept form:
y=mx+b
12 = -1 ( -6 ) + b -----> filled in the m, x and y
12 = 6 + b -----> do PEMDAS
12 - 6 = b -----> moved 6 to the other side to isolate variable
6 = b -----> you found the y-intercept
y = -x + 6 ------> fill the equation in :D
what is the value of (2/4)^-4?
Answer:
16 b plus a is mathematically plus 185 so 15
PLEASE HELP! PICTURE BELOW
Answer: it is 197 and the second one is 985 feet
Step-by-step explanation:
Answer:
first number is 197 feet and second one is 985 feet.
please mark my answer as brainlist
How many solutions does the nonlinear system of equations graphed below
have?
Answer:
two which is B
Step-by-step explanation:
the lines only intersect twice
helpppp!!! (look at screenshot)
Use the map at the right. Any location equidistant from the subway station on 26th St. and the subway station on 30th St. must lie on what street?
A. 8th Ave.
B. 28th St.
C. 7th Ave.
D. 26th St.
Answer:
I think it's the 28th St. but I'm not sure.
Add 2x4 - 6x3 + 5x to the difference between 9x3 + 8x2 - 2 and 4x4 - 2x2 + 8x - 5.
Simplify (x3 + 3x2 + 5x – 4) – (3x3 – 8x2 – 5x + 6)
The first thing I have to do is take that "minus" sign through the parentheses containing the second polynomial. Some students find it helpful to put a "1" in front of the parentheses, to help them keep track of the minus sign.
Here's what the subtraction looks like, when working horizontally:
(x3 + 3x2 + 5x – 4) – (3x3 – 8x2 – 5x + 6)
(x3 + 3x2 + 5x – 4) – 1(3x3 – 8x2 – 5x + 6)
(x3 + 3x2 + 5x – 4) – 1(3x3) – 1 (–8x2) – 1(–5x) – 1(6)
x3 + 3x2 + 5x – 4 – 3x3 + 8x2 + 5x – 6
x3 – 3x3 + 3x2 + 8x2 + 5x + 5x – 4 – 6
–2x3 + 11x2 + 10x –10
And here's what the subtraction looks like, when going vertically:
x
3
−(3x
3
+3x
2
−8x
2
+5x
−5x
−4
+6)
In the horizontal addition (above), you may have noticed that running the negative through the parentheses changed the sign on each and every term inside those parentheses. The shortcut when working vertically is to not bother writing in the subtaction sign or the parentheses; instead, write the second polynomial in the second row, and then just flip all the signs in that row, "plus" to "minus" and "minus" to "plus".
\
x
3
–3x
3
−2x
3
+3x
2
+8x
2
+11x
2
+5x
+5x
+10x
−4
–6
−10
Either way, I get the answer:
–2x3 + 11x2 + 10x – 10
Nate paid $16.20 for a shirt, including tax. The sales tax was
8%. What was the original cost?
Answer:
9.30
Step-by-step explanation:
Sergio earned $350.40 after working 24 hours one week. If Sergio has the same hourly rate, how many hours will he need to work to earn $525.60?
Answer:
36 hours
Step-by-step explanation:
he earns 14.6 per hour
i need help this makes no sense
The total land area of Russia is about 20,000,000 km^2, or 2 x 10^7 km^2.
The total land area of Puerto Rico is about 10,000 km^2, or 2 x 10^2 km^2.
About how many times larger is Russia than Puerto Rico?
A. 2 x 10^-3 times
B. 19,990,000 times
C. 200 times
D. 2 x 10^3 times
Answer:
Im not sure but i think its 200 times
Step-by-step explanation:
Russia is 2 × 10³ times larger than Puerto Rico.
What is Exponentiation?Exponentiation is a method of writing numbers, especially larger numbers, as the power of some number. A number can be written in the exponent form as aᵇ, where 'a' is called the base and 'b' is called the power or exponent.
Total land area of Russia = 20,000,000 km² = 2 × 10⁷ km²
Total land area of Puerto Rico = 10,000 km² = 10⁴ km²
Let X be the number of times that Russia is larger than Puerto Rico.
Then we can write,
Total land area of Russia = X × Total land area of Puerto Rico
2 × 10⁷ km² = X × 10⁴ km²
X = 2 × 10⁷ km² / 10⁴ km²
X = 2 × 10⁷ × 10⁻⁴
X = 2 × 10³
Hence, about 2 × 10³ times larger is Russia than Puerto Rico.
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Malika has a credit card balance of $632.28. Her line of credit on this card
is $5,000. What is her available credit? *
How to do these answers get marked as brainliest!
Answer:
8. twenty-three multiplied by f.
10. Five times the number x is equal to 8 .
12. the product of 3 and a number divided by 7'.
14. The product of the difference of two times a number and 7 and four.
Line a and b are perpendicular lines.If line a is represented by y=s/t x+10 and line b is represented by y=q/r -4 where s,t,q and r are integers and t and r are not equal to zero which statement is always true
Answer:
The options are not shown, so i will answer in a general way.
First, for a line of the form:
y = a*x + b
All the perpendicular lines will have a slope of -(1/a), then we can write a general perpendicular line as:
y = -(1/a)*x + c.
In this problem we have the perpendicular lines:
y=(s/t)*x+10
y = (q/r)*x - 4
Because those lines are perpendicular, we must have that:
(q/r) = -(1/(s/t)) = -(t/s)
q/r = -t/s
and we knew that s, t, q and r are integers (where t and r can not be equal to zero), and because of this relation, where we can see that in the denominator at the right we have the integer s, we can conclude that s can not be zero (we can not divide by zero).
And we know that t and s are both different than zero, then:
-t/s ≠ 0.
This means that:
q/r ≠ 0
And from this, we can conclude that q is different than zero.
Describe qué es un recíproco y da un ejemplo de un número y su recíproco.
Answer:
El recíproco o inverso multiplicativo de un número x es el número que, cuando es multiplicado por x , da 1. ... (Esto es algunas veces llamada la propiedad de los recíprocos .) Ejemplo 1: así el recíproco de 3 es (y el recíproco de es 3.)
Solve by Completing the Square then identify the type of SOLUTIONS:
3x^2 - 12x - 45 = 0
Answer: x= 2 + [tex]\sqrt\\ 19[/tex] , x= 2 - [tex]\sqrt19\\[/tex]
Step-by-step explanation:[tex]x_{1,\:2}=\frac{-\left(-12\right)\pm \sqrt{\left(-12\right)^2-4\cdot \:3\left(-45\right)}}{2\cdot \:3}[/tex]
[tex]x_{1,\:2}=\frac{-\left(-12\right)\pm \:6\sqrt{19}}{2\cdot \:3}[/tex]
[tex]x_1=\frac{-\left(-12\right)+6\sqrt{19}}{2\cdot \:3},\:x_2=\frac{-\left(-12\right)-6\sqrt{19}}{2\cdot \:3}[/tex]
[tex]x=2+\sqrt{19},\:x=2-\sqrt{19}[/tex]
yuh help please haha
Answer:
B
Step-by-step explanation:
Plug the coordinates in the answer choices to see if they give you 18.
Option A: 5(5) - 2(3) = 25- 6 = 9. Not it
Option B: 5(4) - 2(1) = 20 - 2 = 18. Works.
It has to be B because we've already tested (5,3) in option A and it wasn't correct.
8.3x2 +0.9xy + 3.6
7.4x2 - 1.7xy + 6.4
Answer:
20.2 + 0.9xy
&
20.2-1.7xy
Step-by-step explanation:
Please im starting to flunk and i really need help with study islands and ixl's
Answer:
A
Step-by-step explanation:
also, (the image) is a great friend :)) it it wouldn't let me say it
Which lines have a y intercept of 5
solve the floowing systems of euations algebrically.
x+8=z
2x+8-2z=4
-x-y+3z=2
x + 8 = z
x + 8 - 8 = z - 8
x = z - 8
the rest is in a capture
18n + 12 = 27n + 3
5(x + 7) = 6(x - 5)
Solve for the variables SHOW WORK
Answer:
n = 1x = 65Step-by-step explanation:
Given
18n + 12 = 27n + 3 5(x + 7) = 6(x - 5)Solving for variables
1
18n + 12 = 27n + 3 18n - 27n = 3 - 12-9n = -9n = -9/-9n = 12
5(x + 7) = 6(x - 5)5x + 35 = 6x - 305x - 6x = -30 - 35-x = -65x = 65Answer:
18n + 12 = 27n + 3
12-3=27n-18n
9=9n
n=9/9=1
5(x + 7) = 6(x - 5)
5x+35=6x-30
35+30=6x-5x
65=x
:.x=65
Find the measure of the indicated angle to the nearest degree
Please show all steps ty
Answer:
71 degrees
Step-by-step explanation:
1. We know that the angle is unknown as demonstrated by '?'
2. The 17 side is opposite of the unknown angle
3. The 18 side the hypotenuse (not in contact with the right angle)
4. Therefore sine will be used where, sine(degree) = opposite/hypotenuse
5. The equation should be sine(degree) = 17/18
6. Since we don't know the degree we bring sine to the left and has a negative power of 1
7. The equation now becomes degree = sine^-1 (17/18)
8. The answer to this is 70.811... which equals 70 degrees and 48 minutes which rounds to the nearest degree of 71
Pls work this out I will give you brainest xx