Answer:
B). (-4, 5)
Step-by-step explanation:
-2x – 3y = -7 | ×2 |
-4x + y = 21 | ×1 |
-4x – 6y = -14
-4x + y = 21
____________ --
-7y = -35
y = -35/-7
y = 5
-4x + y = 21
-4x + 5 = 21
-4x = 21 - 5
-4x = 16
x = 16/-4
x = -4
If a bicyclist travels 30 kilometers in two hours, her average speed is?
Answer:
Step-by-step explanation:
Help Please!!! Find the slope.
Answer:
(-1,-1),(1,-4)
Step-by-step explanation:
it is the wright answer
I need help with this is this circumference or areas will mark you brainly if right
Help
Don’t use for points or will take it back
Answer:
60°
Step-by-step explanation:
Angles in a triangle add up to 180°
80°+40°=120
180-120=60°
Answer:
60
Step-by-step explanation:
The angles of the traingle must add up to 180 which means that
40+80+x=180
Solve for x
120+x=180
60=x
The area of the parallelogram is 315 square units. What is the height of the parallelogram?
WILL GIVE BRAINLEST
Answer:
15
Step-by-step explanation:
A÷B= H (Area divided by base equals height)
315÷21= 15
Answer:
height = 15
Step-by-step explanation:
Area of a parallelogram: Base * height
Plug in the values we know.
21 * height = 315
Divide both sides by 21
height = 15
Net pay is the difference between a worker’s gross income and his or her deductions. A person’s gross income for the year was $65,000 and their total deductions were $12,860. What was their net pay for the year? Use the formula P = I - d, where P is the net pay, I is the gross income and d is the deductions.
a. $53,140 is the net pay
b. $77,860 is the net pay
c. $72,860 is the net pay
d. $52,140 is the net pay
Angela owns a set of 6-inch tall glasses. Each glass has a diameter of 3 inches. Angela has three people over for dinner. Each guest will be served a full glass of milk. How much milk will Angela need (in cubic inches)? Use 3.14 for pi ()
Angela owns a set of 6-inch tall glasses. Each glass has a diameter of 3 inches. Angela has three people over for dinner. Each guest will be served a full glass of milk. How much milk will Angela need (in cubic inches)? Use 3.14 for pi ()
PLease Help!!
ALgebra 2
WIll be giving extra points
Answer:
B
Step-by-step explanation:
The lines show the solution to these equations:
y=2x-7 and y=-3x+3
Pls help im failing I’ll brainlest for the right answer
Answer:
65 miles per hour
Step-by-step explanation:
Algebra:
a(3b-1)=2b+2
Solve for b
Answer:
b = [tex]\frac{3ab - a - 2}{2}[/tex]
Step-by-step explanation:
We have an algebraic expression and are asked to solve for b.
a(3b - 1) = 2b + 2
To solve we need to isolate b :
Distribute :
(a(3b) - a(1)) = 2b + 2
3ab - a = 2b + 2
2b + 2 = 3ab - a
Subtract 2 from both sides :
2b = 3ab - a - 2
Divide 2 from both sides :
b = [tex]\frac{3ab - a - 2}{2}[/tex]
Answer:
b = 2+a/ 3a-2
Step-by-step explanation:
Do 4x and 15+x have the same value when x is 5
Answer:
Yes!
Step-by-step explanation:
4x5= 20
15+5= 20
Martin has 5 cups of flour if he needs 1/4 cups of flour for one jumbo cookie how many jumbo cookies can he make?
A. 20
B. 5
C. 4
D. 24
Answer:
martin can make 20 jumbo cookies
The triangle on the grid will be translated two units down. On a coordinate plane, triangle A B C has points (2, 1), (0, negative 1), (2, negative 1). Which shows the triangle when it is translated two units down? On a coordinate plane, triangle A prime B prime C prime has points (0, negative 1), (0, negative 3), (2, negative 3). On a coordinate plane, triangle A prime B prime C prime has points (0, 1), (negative 2, negative 1), (0, negative 1). On a coordinate plane, triangle A prime B prime C prime has points (2, negative 1), (2, negative 3), (0, negative 3). On a coordinate plane, triangle A prime B prime C prime has points (2, negative 1), (2, negative 3), (0, negative 1).
please answer im taking the unit test on edge2021 and i need help ;(
Answer:
It would be triangle A'B'C' with points (2, -1); (0, -3); and (2, -3).
Step-by-step explanation:
If you were to translate triangle ABC down by two, then the y-value of each point would decrease by two. Hence, (2, 1) would become (2, -1); (0, -1) would become (0, -3); and (2, -1) would become (2, -3).
Answer:
c
Step-by-step explanation:
i got it right on test
Tom has a collection of 13 snakes, 4 of which are purple and 5 of which are happy. He observes that
all of his happy snakes can add,
none of his purple snakes can subtract, and
all of his snakes that can't subtract also can't add.
Which of these conclusions can be drawn about Tom's snakes?
A)Purple snakes can add.
B) Purple snakes are happy.
C) Snakes that can add are purple.
D) Happy snakes are not purple.
E) Happy snakes can't subtract.
9514 1404 393
Answer:
D) Happy snakes are not purple
Step-by-step explanation:
The first statement tells us all happy snakes can add.
The second statement tells us that all purple snakes can't subtract, and the third statement tells us that purple snakes also cannot add.
Therefore, we must conclude that happy snakes are not purple.
Please Help 15 points and brainliest for best answer thank you it's on the picture provided
Answer:
NO PICTURE
Step-by-step explanation:
Triangles X Y Z and X prime Y prime Z prime are shown.
ΔXYZ was reflected over a vertical line, then dilated by a scale factor of One-half, resulting in ΔX'Y'Z'. Which must be true of the two triangles? Select three options.
△XYZ ~ △X'Y'Z'
AngleXZY ≅ AngleY'Z'X'
YX ≅ Y'X'
XZ = 2X'Z'
mAngleYXZ = 2mAngleY'X'Z'
Answer:
1,2,4
Step-by-step explanation:
I just took the test and got it right and its the only logical answer.
If ΔXYZ, after reflection and dilation by a scale factor of 1/2, ΔX'Y'Z' is created, the following would be true:
1. △XYZ ~ △X'Y'Z'
2. AngleXZY ≅ AngleY'Z'X'
4. XZ = 2X'Z'
Dilation of ShapesWhen a shape is dilated, the new image formed is similar to the original shape.Similar shapes have proportional side but congruent corresponding angles.Thus, if ΔXYZ, after reflection and dilation by a scale factor of 1/2, ΔX'Y'Z' is created, the following would be true:
1. △XYZ ~ △X'Y'Z'
2. AngleXZY ≅ AngleY'Z'X'
4. XZ = 2X'Z'
Learn more about dilation on:
https://brainly.com/question/10253650
How do you find the area of a rectangle with a base of 10 and a height of 2 1/2?
Answer:
The area would be 25.
Step-by-step explanation:
The formula for area is base × height.
2 [tex]\frac{1}{2}[/tex] × 10 = 25
Could someone answer this for me and explain how you solved it ? (Geometry Class)
Answer:
B
Step-by-step explanation:
B is the onlyanwser that has a number that both 9 and 24 are multiplied by toget (2/3) (please excuse the random spaces my space bar is broken)
Terry goes to the store to buy a shirt. The original price is $32. The shirt is
marked down 20%. When he gets to the check-out stand, he learns that
everything in the store is another 10% off of the marked down price. Which
dollar amount below is closest to the amount Terry paid for the shirt?
Answer:
The closest amount paid is $23
Step-by-step explanation:
Given
[tex]Price = \$32[/tex]
[tex]Mark\ down = 20\%[/tex]
Amount = 10% of Marked down price
Required
Determine the amount paid
First, we calculate the marked down price P2:
[tex]P_2 = Price(1 - Mark\ down)[/tex]
Substitute values for Price and Mark down
[tex]P_2 = \$32 * (1 - 20\%)[/tex]
Express percentage as decimal
[tex]P_2 = \$32 * (1 - 0.20)[/tex]
[tex]P_2 = \$32 * (0.80)[/tex]
Remove bracket
[tex]P_2 = \$32 * 0.80[/tex]
[tex]P_2 = \$25.6[/tex]
The payable amount is 10% off the marked down price,
This is calculated as:
[tex]Amount = P_2 - P_2 * 10\%[/tex]
Substitute $25.6 for P2
[tex]Amount = \$25.6 - \$25.6* 10\%[/tex]
Express percentage as decimal
[tex]Amount = \$25.6 - \$25.6* 0.10[/tex]
[tex]Amount = \$25.6 - \$2.56[/tex]
[tex]Amount = \$23.04[/tex]
The closest amount paid is $23
Pls help ASAP PLS PLS PLS
Answer:
Step-by-step explanation:
Let the exponential function for the given table is,
f(x) = a(b)ˣ
Here, f(x) = Price of the item after 'x' years
a = Initial price of the item
b = Growth factor
x = Duration(years) from year 1913
By exponential regression calculator,
Exponential function represented by the table will be,
f(x) = 7.822(1.034)ˣ
Now we have to calculate the price of the item in year 2025.
Difference in time = 2025 - 1913
= 112 years
Price of the item after 112 years,
f(112) = 7.822(1.034)¹¹²
= $330.840
a box of oil paints contains 9 cans, each can is the same weight. if the box weighs 20.25 pounds, how much does each can weigh? and how many pounds if there were only 6 cans?
Please help at least do 3 questions please Don’t guess (can be more than one)
hi i need help asap
10(y - 3) +(6y - 5)
Answer:
16y -35
Step-by-step explanation:
10(y-3)+(6y-5)
10y-30+6y-5
10y+6y -30-5
16y -35
In a class with 28 students, there are 19 boys. What is the ratio of girls to boys? 9:19 19:28 19:9 28:9
Answer:
9:19
Step-by-step explanation:
Total number of students = 28
Number of boys = 19
Number of girls = Total number of students - Number of boys = 28-19 = 9
Therefore, ratio of girls to boys = Number of girls/Number of boys = 9/19 = 9:19
Answer: 9:19
Step-by-step explanation: The total number of students is 28.
Subtract the number of boys, 19
28 - 19 = 9 girls
Use those numbers for the ratio.
girls:boys
9:19
You want to find the width, AB, of a river. You walk along the edge of the river 100 ft and mark point C. Then
you walk 22 ft further and mark point D. You turn 90° left and walk until your location, point A, and point C are
collinear. You mark point E at this location, as shown.
(a) Suppose DE = 42 ft. What can you conclude about the width of the river? Explain. Your explanation
should include the approximate width and how you got this answer.
(b) Can you conclude that △ and △ are similar? Why or why not?
Answer:
I have been trying to figure this one out, I'm sorry but i don't know the answer
Step-by-step explanation:
i hate math
PLEASE HELP!! 30 POINT!
What is the length of side s of the square shown below?
1450
6
s
90°
O A. 2
B. 6
O C. 16
Answer:
(E) 3(sq rt 2)
Step-by-step explanation:
the figure is a square so all four sides are equal and has 90 degree corners.
the diagonal has the value of 6 so:
6^2=s^2+s^2
36=2s^2
s^2=18 or sq rt 18 which would be 3(sq rt 2)
what is the decimal equivalent of 8/12
Answer:
0.666 repetitive, or 0.67
Step-by-step explanation:
Here are the ingredients needed to make 8 pancakes.
250 ml milk
1 egg
140g flour
5G butter
Simon makes 4 pancakes. Work out how much milk he needs.
Craig makes 12 pancakes. Work out how much butter he needs.
Answer:
250ml milk ÷ 2 = 125 ml of milk
(5÷8) x 12 = 7.5G butter
hope this helped :)
what is 4 devided by 3/4
Answer:
5 1/3
Step-by-step explanation:
We make
4/1 divided by 4/3 = 5 1/3
5. If the ratio of boys to girls in a student's class is 5 to 7, what fraction of the class is boys?
What fraction is girls?
Answer:
Boys ratio- 5/12 girls ratio 7/12 dont think you can simplify
Step-by-step explanation:
Answer:
5 = Boys 7 = Girls
Step-by-step explanation:
Boys:Girls = 5:7. I hope this helps :)
