Answer:
I think it is C you should practice This is easy
Step-by-step explanation:
Solve by substitution.
2x - 3y = 3
y= 7 - 2x
Answer:
x=3 y=1
Step-by-step explanation:
plug in y. 2x-3(7-2x)=3
then get 8x=24
x=3
then plug in x in either equation
y=7-2(3)
y=1
the price of a book rises from £16 to £20 work out the percentage increase
Answer:
25%
Step-by-step explanation:
20-16=4
So
16…4
1 … 4/16
100…4/16×100
1/4×100
25%
Three friends order a pizza for $14, a two-liter bottle of soda for $2.75, and a bag of chips for $2.15 They want to evenly split the total cost. Determine how much each person owes.
Answer:
$6.3
Step-by-step explanation:
Given that:
There are 3 friends who have ordered some eatables.
Price of one pizza = $14
Price of two-liter soda bottle = $2.75
Price of a bag of chips = $2.15
The price of all the items is split evenly.
To find:
How much each person owes i.e. the amount of money each person will have to pay?
Solution:
First of all, let us find the total amount to be paid for all the three items.
Total amount to be paid = $14 + $2.75 + $2.15 = $18.9
Now, this total amount is evenly split i.e. equally divided in three parts.
Let us divide the total amount by 3.
Therefore, share of each friend = [tex]\frac{\$18.9}{3} = \bold{\$6.3}[/tex]
Pedro and Carmela are cleaning their kitchen. It takes Pedro 3 hours to clean the kitchen by himself, while Carmela can clean the kitchen in 2
hours. Which equation can be used to calculate how long it will take them to clean the kitchen if they work together?
o * + = 1
31 + 2 = 1
Answer:o * + = 1
Step-by-step explanation:
What are the coordinates of the endpoints of the segment T'V'? T'(-3, 6) and V'(0, 3) T'(-3, 6) and V'(0, 1) T'(-1, 2) and V'(0, 3) T'(-1, 2) and V'(0, 1)
Answer:
Step-by-step explanation:
The figure required in the question is missing, the figure can be found in attachment.
Transforming points T and V according to the rule (x,y) -> (3/4x, 3/4y), we get:
T(-4, 8) -> (-4*3/4, 8*3/4) -> (-3, 6) which corresponds to T'
V(0, 4) -> (0*3/4, 4*3/4) -> (0, 3) which corresponds to V'
Answer:a
Step-by-step explanation: got it right on edge 2021
Please help with this question
Answer:
A
Step-by-step explanation:
When the temperature has a negativ sign on it, it is below zero
When the temperature is a natural number, it is above zero
Answer: above zero
Step-by-step explanation:
Because if it was below zero there would be a negative Infront of the number so show it’s below zero but there’s not, so I’m pretty sure it would be above zero. I hope this helps
Please please please help
Answer:
B
Step-by-step explanation:
I checked it and it’s right I hope this helps!!
PLEASE HURRY 3 minutes left
Answer:
The answer might be 3(21b-11a)/77ab
Step-by-step explanation:
Answer:
Step-by-step explanation:
63b-33a/77ab
An observational study of suburban towns reveals that towns with more dedicated park land tend to have higher median home prices. A real estate agent suggests that a town’s crime rate is a more accurate predictor of median home price.
What is the confounding variable in this study?
the median home price
the crime rate
the distance from a large city
the median home size
Answer:
the median home size.
Step-by-step explanation:
In this scenario, the confounding variable would be the median home size. This is because this factor is both a cause and effect of the median home prices. A bigger house would obviously be worth more than a smaller house so the house size affects the prices of the homes in the market. At the same time, the median home sizes can also cause an increase or decrease in crime rates as criminals are more likely to target homes that seem as though they have more valuables inside.
Answer:
Crime rate
Step-by-step explanation:
In triangle △WXY, XY ≅ WX and m∠X=38 Find m∠W
Step-by-step explanation:
71°
give me the brainlist
What is the range of this (may be more than one answer)
Tim incorrectly says
that the solution of the system of equations is
x= -9, y= -4.
System of equations:
6x - 2y = -6
11 = y - 5x
a. What is the correct solution?
b. What error might Tim have made?
Answer:
a)First, solve and regroup
11=y-5x
y=11+5x.
Plug in:
6x-2(5x+11)=-6
6x-10x-22=-6
-4x-22=-6.
-4x=16
x=-4.
Plug it:
y=11+5(-4)
y=11-20
y=-9.
x,y=-4,-9.
b) The error Tim made is that he confused the x and y.
The correct answer is -4,-9.
He said it was -9,-4.
Hope this helps plz hit the crown ;D
The correct solution is -4,-9 time might have changed x coordinate with y-coordinate
What is a linear equation?
A linear equation is an equation that has the variable of the highest power of 1. The standard form of a linear equation is of the form Ax + B = 0.
6x-2y = -6...1
11= y-5x...2
(a) Rearranging the 2 equation;
11=y-5x
y=11+5x.
substituting in first equation;
6x-2(5x+11)=-6
6x-10x-22=-6
-4x-22=-6.
-4x=16
x=-4.
Now putting the value of x in second equation;
y=11+5(-4)
y=11-20
y=-9.
x,y=-4,-9.
(b) The error Tim made is; he confused the x and y.
The correct answer will be -4,-9.
Learn more about linear equations;
https://brainly.com/question/10413253
#SPJ5
y r all the questions so hard...........
r u guys like college students or something........
Answer:
Maybe.......... No lol. Some people just word it weird. When you change up the wording of the questions it helps sometimes.
Step-by-step explanation:
Answer:
What's your question you have having a problem?
Which ones have been translated ?thank you
Answer:
looks like D! Have a nice day :D
Lucy is a waitress. At the end of the night she must give 12% of her tips to the cleaning crew. How much does she go home with if she made $320 in tips last night?
Answer:
$38.40
Step-by-step explanation:
Raheem made a pattern with red and yellow tiles, with the yellow tiles forming 25% of the whole pattern. What is the ratio of the YELLOW tiles to the RED ones in the pattern?
Answer: 1 : 3
Step-by-step explanation:
The yellow tiles form 25% of the whole pattern.
The red tiles will therefore form 75% of the whole pattern.
Ratio of Yellow tiles to Red tiles is;
25 : 75
Simplest form. Divide each side by 25;
= 1 : 3
please help me on this
Answer:
59
Step-by-step explanation:
59
how do u answer thiss
Answer:
15 times and more. After she pours the 15th container, in the middle of the next one, the work will be done.
Step-by-step explanation:
Length, Area, and Volume Scale Factors
If two similar shapes have a length scale factor of a:b, then the scale factor of their areas (or surface lateral areas) is [tex]a^2:b^2[/tex] and the scale factor of their volumes is [tex]a^3:b^3[/tex].
We are given the scale factor of the surface areas of two similar containers A and B as 4:25.
The length scale factor is
[tex]\sqrt{4}:\sqrt{25}=2:5[/tex]
The volume scale factor is: [tex]5^3:2^3[/tex] = 125:8 = 15.625
Warda needs to fill with oil and pour into container B 15.625 times to get container B full of oil.
Thus, after she pours the 15th container, in the middle of the next one, the work will be done
Given: tangent A = negative StartRoot 15 EndRoot What is the value of Tangent (A minus StartFraction pi over 4 EndFraction)?
Answer:
( √15 + 8)/7
Step-by-step explanation:
TanA = -√15
.we are to find tan(A-π/4).
In trigonometry
Tan(A-B) = TanA - TanB/1+ tanAtanB
Hence:
tan(A-π/4) = TanA - Tanπ/4/1+ tanAtanπ/4
Substitute tan A value into the formula
tan(A-π/4) = -√15-tanπ/4 / 1+(-√15)(tanπ/4
tan(A-π/4) = -√15-1/1-√15
Rationalize
-√15-1/1-√15 × 1+√15/1+√15
= -√15-√225-1-√15/(1-√225)
= -2√15-15-1/1-15
= -2√15 -16/(-14)
= -2(√15+8)/-14
= √15 + 8/7
Hence the required value is ( √15 + 8)/7
Answer:
Probably D ( -√15-1/1-√15)
Step-by-step explanation:
it was in adidemiokin's answer before they rationalized it. Couldn't find the darn answer anywhere else. I'm on my 3rd attempt on the EDGE precalc Unit test hopefully D is right.
PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
C. 94.2 cm
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightGeometry
Circumference: C = 2πrStep-by-step explanation:
Step 1: Define
r = 15 cm
Step 2: Find C
Substitute [C]: C = 2π(15 cm)Multiply: C = 30π cmMultiply: C = 94.2 cmThe coach separated the 18 players at basketball practice into 3 different groups. How many players were in each group?
Answer:
6 players
Step-by-step explanation:
its 18 divided by 3 cause they are going into separate groups
i need help with this please help
Answer:
The answer would be bottom right corner
Step-by-step explanation:
It is not a linear function
help 6th grade math i will give brainliest
Step-by-step explanation:
plz give brainlyest
4* 53+1/(8-5)^3
4(54)/(8−5)3
4(54/3^3)
4(54/27)
(4)(2)=8 the answer is 8
Answer:
Add 53 + 1
Step-by-step explanation:
if 8kg sugar cost rs148. how much sugar can be bought for rs 832.50
Answer:
if 8kg- rs148
what about rs832.50
so you multiply rs832.50*8kg/rs148
answer=45 kg
Which table represents the second piece of the function f(x) = 1 -3.5x + 0.5,
I didn’t see this one on here so here’s the answer :)
Answer:
c
Step-by-step explanation:
Answer:
Thank you!!!
Step-by-step explanation:
Find the value of : 0.678 multiplied by 9.01/0.0234
Answer:
261.06 (Approx)
Step-by-step explanation:
Given:
Two number = 0.678,9.01/0.0234
Find:
Multiply
Computation:
⇒ 0.678,9.01/0.0234
⇒ 0.678 x [9.01/0.0234]
⇒ 6.10878 / 0.0234
⇒ 261.058874
261.06 (Approx)
Use the drawing tool(s) to form the correct answer on the provided graph.
Consider the system of equations.
The first equation in the system is graphed below. Graph the linear equation on the coordinate plane and use the Mark Feature tool to place a point at the solution(s) of the system.
Answer:
(-7, 0) and (0, -7)Step-by-step explanation:
Draw the graph of x = - y - 7.
Convert to the slope-intercept form (y = mx + b):
x = -y - 7 add y to both sides
x + y = -7 subtract x from both sides
y = -x - 7
This is the straight line equation. We only need two points to plot the graph.
Choose any value of x, put to the equation and calculate the value of y.
for x = 0:
y = -0 - 7 = -7 → (0, -7)
for x = -7:
y = -(-7) - 7 = 7 - 7 = 0 → (-7, 0)
Mark points in the coordinate system and draw a line.
The intersection points of the circle and the line are the solution.
Answer:
(-7, 0) and (0, -7)
Step-by-step explanation:
Draw the graph of x = - y - 7.
Convert to the slope-intercept form (y = mx + b):
x = -y - 7 add y to both sides
x + y = -7 subtract x from both sides
y = -x - 7
This is the straight line equation. We only need two points to plot the graph.
Choose any value of x, put to the equation and calculate the value of y.
for x = 0:
y = -0 - 7 = -7 → (0, -7)
for x = -7:
y = -(-7) - 7 = 7 - 7 = 0 → (-7, 0)
Mark points in the coordinate system and draw a line.
The intersection points of the circle and the line are the solution.
An item is regularly priced at $58. It is now priced at a discount of 80% off the regular price
Answer: The discount price is $11.60. The discount is $46.40. (I didn't know which answer you wanted)
Step-by-step explanation: First, you need to find the discount. To do that, all you need to do is multiply 58 by 80/100 (this is still equal to 80%). You should get 46.40 (you might get 46.4 but it's the same thing), Then, subtract 46.40 form 58. You should get 11.60. So your final answer should be $11.60.
How many hours must you drive if you drive 643 miles at 65 mph on the interstate? Round to the nearest tenth hour
Answer:
9.9 hours, rounded to the nearest tenth hour.
Step-by-step explanation:
To calculate the time of travel, we must first divide the distance by the speed. Why, you ask? Because of this equation:
[tex]Speed\=\ \frac{distance}{time}[/tex]
Therefore, with a little bit of arrangement, we get:
[tex]Time\=\ \frac{distance}{speed}[/tex]
So, let's get on with it.
[tex]Time\=\ \frac{643 \ miles}{65 \ mph}[/tex]
[tex]Time\=\ 9.9 \ hours [/tex]
Finally, we have our answer: 9.9 hours, rounded to the nearest tenth.
Hope this helped!
The temperature is -4 degrees at 6am and rises 13 degrees by midday. What is the temperature at midday?
It is 9 degrees by midday
Answer:
11 degrees
Step-by-step explanation:
-4 degrees plus 13 degrees equals 11 degrees