Answer:
It could be =15 or =0
Step-by-step explanation:Multiplying each side of −3x+4y=20
by 2 gives −6x+8y=40
. Adding each side of −6x + 8y = 40 to the corresponding side of 6x+3y=15
gives 11y=55,ory=5
. Finally, substituting 5 for y in 6x+3y=15
gives 6x+3(5)=15,orx=0
.
Answer:
x-3y=15 has a y-intercept of -5
Step-by-step explanation:
A y-intercept occurs when x = 0. So, when x = 0, which function has a y-value of -5?
Plug in 0 for all the values of x and solve for y.
1. 2(0)+y=-10; y=-10
2. (0)-y=-5; y = 5
3. (0)-3y=15; y = -5
4. -(0)+4y=20; y= 5
Right triangle ABC has side lengths AB = 4x+28, BC = 2x+13, AC = 3x-15. Assuming C is the right angle, for which value of x is tan(B) undefined?
Answer:
D
Step-by-step explanation:
Because the other just make no sense
:)Can someone answer this
Answer:
6.50 + 5.75n
Step-by-step explanation:
6.50 for the first hour only being charged once and the 5.75 being for the number of hours (n) she works after the first hour
Answer:
B
Step-by-step explanation:
n is how many additional hours after the first hour she babysits. She charges $5.75 for each additional hour. So, that would be:
5.75n
But for the first hour, she charges 6.50. So that would be:
6.50+5.75n
find 46% of 70. Do not round your answer.
Answer:
the answer is 32.2
Step-by-step explanation:
Not rounded
hope this helps
Answer:
32.2
Step-by-step explanation:
70 divided by 100 times 46
5y + 8 = -18
5y + 2x = 58
Answer:
y=-26/5
x=29−5y/2
Step-by-step explanation:
PLEASE HELP
WILL GIVE BRAINLIEST!!!
Answer:
5/16 pounds
Step-by-step explanation:
The problem mentions that Audrey needs to cut a 5-pound block into 16 pieces. This means that each of the 16 pieces of cheese must weigh the same, thus we have to divide 5 pounds by 16 to divide the weight equally. Thus, all you need to do is divide 5 by 16, giving you 5/16. Therefore, your answer is that each block of cheese weighs 5/16 pounds.
Answer:
0.3125 pounds
Step-by-step explanation:
Each wedge of cheese weights 0.1325 pounds
*
4. Find the value of x in the given parallelogram.
(2x+5)*
1159
Your answer
Answer:
x = 55
Step-by-step explanation:
Use the property of a parallelogram,
" Opposite interior angles of a parallelogram are equal in measure"
By this property, opposite angles given in the figure will be equal.
(2x + 5)° = 115°
2x = 115 - 5
2x = 110
x = [tex]\frac{110}{2}[/tex]
x = 55
Therefore, x = 55 will be the value.
PLEASE ANSWER I NEED LOTS OF HELP!!!!!!!!!!!!!!
Answer:
40%
Step-by-step explanation:
Rachael liked 36/90 books movies that she watched. This simplifies to 2/5 which is 0.4. To find the percentage, we multiply 0.4 by 100 to get 40%.
A triangular piece of wood is being installed on a front porch. The piece of wood is shown below. Find its area. Round to the nearest tenths place.
Answer:
102.9
Step-by-step explanation:
Area of a triangle is A=(1/2)(h)(b) where h is the height and b is the base.
7.35 is the height and 28 is the base
A=(1/2)(7.35)(28)
A=102.9
Salma Serra purchased a truck. last year she drove the truck 12,340 miles. the fixes costs totaled $1,428 , while variable cost totaled $2,998. how much did it cost per mile to operate the truck?
Answer:
20.61952
Step-by-step explanation:
hope it helps
The solution is : cost of driving per mile is $0.42.
What is addition?Addition is a way of combining things and counting them together as one large group. ... Addition in math is a process of combining two or more numbers.
here, we have,
Given:
Luisa Díaz drove her vehicle about 7,200 miles last year.
Total fixed cost = $1,058.40
Total variable cost = $1965.60
Question asked:
How much did it cost per mile ?
Solution:
Total cost of driving 7200 miles = Total fixed cost + Total variable cost
= $1,058.40 + $1965.60
= $3024
By unitary method:
Cost of driving 7200 miles = $3024
Cost of driving 1 mile = $3024 7200
= $0.42
Thus, cost of driving per mile is $0.42
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complete question:
Luisa Díaz drove her vehicle about 7,200 miles last year. Her fixed costs totaled $1,058.40 and her variable costs were $1965.60 how much did it cost per mile
Write the equation of a line with a slope of 2/3 going through the point (-15, -22)
Answer:
y=(2/3)(x+15)-22
Step-by-step explanation:
You use the slope point equation which is y-y1=m(x-x1) or y=m(x-x1)+y1 where m is the slope and x1 and y1 are the coordinates you plug in.
Therefore, 2/3 is the slope m and (-15, -22) are the coordinates for x1 and y1.
y=(2/3)(x-(-15)) + (-22)
y=(2/3)(x+15)-22
Shannon is dressing a mannequin for a store window to show off a new line of men's clothing. Shannon can choose from 2 different T-shirts and 8 styles of jeans. How many different ways can Shannon dress the mannequin?
ways
Answer:
16
Step-by-step explanation:
What is the value of X in the equation x²-6x+9=25
Answer:
X = -2 or X = 8
Explanation:
The souvenir stand sells the hats for $11.75 each , the postcards for $0.25 each , and the magnets for $3.50 each . Write an expression for the total amount of money they would take in if they sold all the items
Answer:
9.2h+50
Step-by-step explanation:
im not sure if this is correct and im only in middle school but i had this same quetsion and got that snwer
Johann borrows money from his parents to purchase a bike. He makes weekly payments to his parents to repay the money
borrowed. The total amount of money repaid at the end of week n can be represented using the recursive formula a, = 10+ an-1-
At the end of the fourth week, Johann had repaid his parents a total of $55. What is the total amount Johann had repaid his
parents at the end of the first week?
o $10
$20
$25
$35
Answer:
$25
Step-by-step explanation:
An = 10 + An-1
At the end of 4th week ; amount repaid = $55
A4 = 10 +
An = a + (n - 1)d
n = 4
A4 = 10 + (4 - 1)d
55 = 10 + 3d
55 - 10 = 3d
45 = 3d
d = 15
Hence, at the end of first week :
A1 = a + d
$10 + $15
= $25
f(x) =
-(x – 6)2 +7 for x+3
for X = 3
Find f(3)
Answer:
lol it's right there
Step-by-step explanation:
I am not sure if you are what I call a ride or die cuz u a caring person and ant to be a recruiter I am good at persuading people to do stuff
Below. What is m∠1?
m∠1 =
Answer:
70 degrees
Step-by-step explanation:
Answer:
Angle 1 is 70
Step-by-step explanation:
Because (angle 1 + 31=101) so 101-31= 70
Find the median of the data in the box plot below. Cookies A horizontal boxplot titled Number of cookies eaten by each contestant, is plotted along a horizontal axis marked from 2 to 30, in increments of 1. A left whisker extends from 5 to 6. The box extends from 6 to 22 and is divided into 2 parts by a vertical line segment at 8. The right whisker extends from 22 to 25. All values estimated.
Diagrammatic representation of the summarized box plot is attached below :
Answer:
Range = 20
Median = 8
Step-by-step explanation:
The median value of a box plot is obtained at the point where a vertical line divides the box into two parts. In the boxplot Given the median of the representation is 8. This is the point where the vertical line divides the box.
The range of the distribution is the difference between the maximum and minimum value :
Minimum (starting point of whisker) = 5
Maximum (end point of whisker) = 25
Range = 25 - 5 = 20
If L1 ∥ L2 , and L3 ∥ L4 , what is the measure of ∠1? Please help me
Answer:
m<1 = 29
Step-by-step explanation:
All angles of a triangle equal 180:
<1 = x
Equation:
x + 90 + 61 = 180
x + 151 = 180
x = 180 - 151
x = 29
wHAT is 3+3+4+5+6+7????
Answer:
28
Step-by-step explanation:
first u add 3 + 3 which is 6 then 6 + 4 which is 10 then 10 + 5 is 15 then 15 + 6 is 21 and finally 21 + 7 is 28
In tilton school there are 380 students in key stage 3 240 students in key stage 4 110 students in key stage 5 phoebe is carrying out a survey. she needs a sample of 100 students
Answer:
52
Step-by-step explanation:
Total Number of students :
Stage 3 : 380
Stage 4 : 240
Stage 5 : 110
Total = (380 + 240 + 110) = 730
Number of samples required = 100
Number of key stage 3 students required :
(Key stage 3 / total) * number of samples
(380 / 730) * 100
= 0.5205479 * 100
= 52.0547
= 52
Which is the best estimate for the capacity of a kitchen sink?
Which is the best estimate for the capacity of a kitchen sink?
A.2,000 liters
B.200 liters
C.2 liters
D. 20 liters
The best estimate for a kitchen sink is 20 liters from the options given.
Option C is the correct answer.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
The average capacity of a kitchen sink = 32 liters.
The best estimate for the capacity of a kitchen sink.
= 20 liters to 40 liters
Thus,
20 liters can be our best estimate.
Learn more about expressions here:p
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Please help, Find the perimeter of the figure
Answer:
24
Hope that this helps!
Answer:
24 inches
Step-by-step explanation:
starting from 4 going clockwise, add the inches to get the perimeter:
4 + 5 + 1 + 5 + 9 = 24
What is 5 to the 6 power divided by 3794.3?
Answer:
4.11801913396
Step-by-step explanation:
Heart me pls
In the figure shown above, all the comers form right angles. What is the area of the figure in square units?
A. 31 square units
B. 62 square units
C. 102 square units
D. 120 square
Answer:
D. 120 squared
Step-by-step explanation:
what is the value of x?
Sixty percent of the people surveyed use sunscreen. A random number generator was used to simulate the results of asking the next three people. The numbers 0–5 represent people who use sunscreen, and the numbers 6–9 represent people who do not use sunscreen. What is the probability that two of the next three respondents use sunscreen?
Answer:
[tex]Pr = 0.50[/tex]
Step-by-step explanation:
Given
See attachment for complete question
Required
Probability that 2 of 3 use sunscreen
From the attached data, we have:
[tex]S = \{275, 738, 419, 582, 987, 436, 578, 472, 178, 839\}[/tex]
[tex]n(S) = 10[/tex]
Events where 2 of the 3 uses sunscreen is:
[tex]x = \{275, 419, 582, 436, 472\}[/tex] --- i.e. where 0 -5 represents sunscreen
[tex]n(x) = 5[/tex]
So, the required probability is:
[tex]Pr = \frac{n(x)}{n(S)}[/tex]
[tex]Pr = \frac{5}{10}[/tex]
[tex]Pr = 0.50[/tex]
What is the y-intercept of the graph of x=9y-5
Answer:
(0,5/9)
Step-by-step explanation:
Sullivan’s boss has 5 eyes total. Three of his eyes are smaller than the other two. What percentage of his eyes are larger?
Answer:
40%
Step-by-step explanation:
3/5 are small so we have to find 2/5 which is 40%
2/5=x/100
cross multiply
you'll get: 5x=200
divide and thats how u get 40 %
HELP ASAP
I HAVE NO IDEA WHAT TO DO HERE
Answer:
Angle A
Step-by-step explanation:
Remember:
SOH CAH TOA
Opposite = Directly across from.
Adjacent = Next to.
Hypotenuse = Longest side.
Tangent = Opposite Side / Adjacent Side.
✓ Tan A = 6 / 8 = 3 / 4 = 3 / 4
× Tan B = 8 / 6 = 4 / 3 ≠ 3 / 4
× Tan C = 10 / 8 = 5 / 4 ≠ 3 / 4
Plz help on this ASAP I forgot
Answer:
B) If you use 9 cups of almonds, you need 5 cups of flour
Step-by-step explanation:
If 9 is your x-coordinate, that represents 9 cups of almond.
If 5 is your y-coordinate, that represents 5 cups of flour.
Therefore, B is correct