Answer:
y=3, x=2
Step-by-step explanation:
-3x-2(5x-7)=-12 (substitute y=5x-7)
simplify
{-13x+14=-12\}
isolate x for -13x +14=-12: x=2
for y=5x-7 substitute x=2
simplify y=3
sorry i know this is quite lenghty but i hope this helps :) have a nice day !!
The Students' Conjectures: You and Uyen are writing a grant proposal for $50,000 to
provide wireless Internet access to a rural community in South Korea. Complete the
table to summarize Uyen's idea about the percentage of the population that can get
Internet access for $50,000. (1 point)
Classmate
Conjecture
Uyen
HELPPP im confused :/
Answer:
D.
Step-by-step explanation:
The sides correspond with a favor of 1.5
12/8 = 1.5
7.5/5 = 1.5
3/2=1.5
Please answer these 3 they are pretty simple tysm will mark brainliest
7: -69
8: -2+3-4 = -3
9: $ (5y+10)
please help me stuck
Answer: 341.4
Step-by-step explanation:
Sarah drinks 30 liters of water on weekdays and 12 liters of water on weekends. How many liters of water does Sarah drink per day?
Easy, 6
30 divided by 5 equals 6
12 divided by 2 equals 6
Answer:
6 liters per day
Step-by-step explanation:
Hi there!
We know that Sarah drinks 30 liters on weekdays. There are 5 days in a week not including the weekends. You have to divide 30 liters by 5 to get the per day amount. 30 divided by 5 is 6. This means that Sarah drinks 6 liters per day. This is accurate because when you go on to check the amount of water she drinks on weekends, you know there are two days in a weekend, and you know she drinks a total of 12 liters during the weekend, so 6 liters multiplied by those two days is equal to 12.
Really hope this helps :)
A whole pizza is cut into 8 pieces and you eat 2 of the 1/8 pieces, how much (in a fraction) is left over? 3/8
4/6
2/8
6/8
Answer:
6/8 is left
Step-by-step explanation:
Hope this helps!! Can I get brainliest please??? :)
8 pieces = 8/8
8/8 - 1/8 - 1/8 = 6/8
or
8/8 - 2/8 = 6/8
In France, a laptop costs €540
In England, the same laptop costs £460
(b) Work out the difference between the cost of the laptop in France and the cost of the laptop in
England
You must show clearly how you got
your answer.
Answer: 540 - 460 =80 thats all you have to do
Step-by-step explanation:
Pleaseee I need help it’s a major grade
Answer: D.
Step-by-step explanation:
48/2.15= d, so 2.15d=48
OMG HELP MEEEEEEEeeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer:
78
Step-by-step explanation:
*6 on both sides
13*6=d/6*6
Use the table and the graph to answer the questions.
Function 1
x −1 −2 −3
y 4 6.5 9
Function 2
(a) What is the rate of change for each function? Show your work.
(b) Which function has the greater rate of change?
Can someone help me? I'd greatly appreciate it!
Answer:
11 because you add all the exponents to find the answer 6+4=10 but since R has no number we assume there is an invisible 1 making it 11 :)
Step-by-step explanation:
Please solve this for me
9x+6+45=100
Answer:
9x+6+45=100
Transposing (45) to RHS
= 9x+6=100-45
= 9x6=55
Now, transposing (6) to RHS
= 9x=55-6
= 9x=49
Now, transposing (9) to RHS
= x=49÷9
= x=5.44.....
Therefore, value of x=5.44..............
Please help.
Algebra.
Answer: The Answer is (A)
Step-by-step explanation: Have a brilliant day mate! - Lily ^-^
HEEEEELLLLLPPPPP!!!!!!!!!!!
Answer:
74
Step-by-step explanation:
180 minus 106 is equal to 74
How do I solve this and what’s the answer? This is due at 11:59 pm on 2/9/21 PLEASE HELP!
Answer:
I believe the answer is 8.
A certain college enrolled 29,000. It was reported 54 percent were female and 46 percent were male. In addition 61 percent were over the age of 25. How many students were in each category if 30 percent of those over the age if 25 were male
Answer:
Step-by-step explanation:
Total number of students = 29000
Number of female = 54% of 29000
54/100 x 29000 = 15660 students
Number of male = 46% of 2900
46/100 x 29000= 13340 students
61% of 29000 are over 25 years
61% of 29000= 61/100 x 29000
= 17690 students
Of the pupils over the age of 25, 30% are male
30% of 17690 students are male
30/100 x 7690 =5307 students
The number of females over the age of 25 = 17690 -5307
17690 - 5307 = 12383 female students.
6) A circular window on a boat has a diameter of 24
inches. Approximately how much wall space does the
window take up?
A 38 in?
B 75 in?
C 113 in?
D452 in?
Answer:
452.448in² options D
Step-by-step explanation:
A circular window on a boat has a diameter of 24
inches. Approximately how much wall space does the
window take up?
A 38 in?
B 75 in?
C 113 in?
D452 in?
Given data
D=24 inches
Radius =d/2= 24/2= 12 inches
Area A
A=πr²
Substitute
A=3.142*12²
A=3.142*144
A=452.448in²
Please help me with this problem. Best answer will get brainliest!
Answer:
c=20 e=114 d=46 dec=180
Step-by-step explanation:
y=5
Answer:
m∠C = 32°
m∠D = 82°
m∠DEC = 66°
Step-by-step explanation:
Exterior Angle Theorem says that the degree measure that with an angle forms a straight line (Ex. Angle DEF in the picture) is equal to the sum of the two other angles in the triangle. This means that the measure of angle DEF is equal to the measure of angle DCE plus the measure of angle CDE. This would mean that 9y + 1 + 3y + 5 = 114, meaning that 12y + 6 = 114, which means that 12y = 108, which means that y = 9. If we plug 9 in for all of these values, we get that angle D is 9 * 9 + 1, which is 82 and that angle C is 3 * 9 + 5, which is 32. Next, we know that the sum of angles in a triangle is 180, so we subtract 32 and 82 from 180 to find the measure of angle DEC, and this is 66 degrees.
Find the least common multiple of the set of numbers
8,9
The least common multiple of 8 and 9 is____?
Answer:
72
Step-by-step explanation:
plz mark brainliest :D
Given the side length, determine whether the triangle is acute, right, obtuse or not a triangle.
10, 23, 41
A. Acute
B. Right
C. Obtuse
D. Not a triangle
Since 41 is greater than the sum of the other two sides this is not a triangle.
Alicia purchased h half gallons of ice cream for 3.50 each p packages of ice cream cones for 2.50 each she purchased 14 items and spent 43$ which system of equations could be used to determine how many of each item Alicia purchased
Answer:
H + P = 14
3.50H + 2.50P = 43
Step-by-step explanation:
Given that
H denotes half gallons of ice cream
P denotes packages of ice cream cones
Now
H + P = 14
And,
3.50H + 2.50P = 43
So, the systems of equations would be
H + P = 14
3.50H + 2.50P = 43
Rearrange x= 3g + 2 to make g the subject
Answer:
g = 1/3 x - 2/3
Step-by-step explanation:
x =3g + 2
Switch sides:
3g + 2 = x
Take away 2 from both sides:
3g = x - 2
Divide both sides by 3:
g = 1/3 x - 2/3
A ladder leans against a building. If the ladder reaches 18 feet up the wall and contacts the ground 5 feet from the building, what is the angle formed between the top of the ladder and the building?
Answer:
I think it is 15 Tan^-1 (5÷18)
Select the procedure that can be used to show the converse of the Pythagorean theorem using side lengths chosen from 6 cm, 8 cm, 9 cm, and 13 cm.
A. Knowing that 6^2 + 8^2 = 10^2, draw the 6 cm side and then the 8 cm side with a right angle between them. The 10 cm side will fit to form a right triangle.
B. Knowing that 6^2 + 8^2 > 9^2, draw the 6 cm side and then the 8 cm side with a right angle between them. The 10 cm side will fit to form a right triangle.
C. Knowing that 8^2 + 9^2 does not equal 10^2, draw the 8 cm side, then the 9 cm side with a right angle between them. The 10 cm side will fit to form a right triangle.
D. Knowing that 6^2 + 8^2 = 10^2, draw any two of the side with a right angle between them. The third side will fit to form a right triangle.
Answer:
A. Knowing that 6^2 + 8^2 = 10^2, draw the 6 cm side and then the 8 cm side with a right angle between them. The 10 cm side will fit to form a right triangle.
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
credit goes to guy up top
CD and CB are tangent to circle A. If CD = 5x – 13 and CB = 12, find x.
Answer:
5
Step-by-step explanation:
because 5•5=25 and 25-13=12
7m - 17 = -24
what is m?
Answer:
Move all terms that don't contain
m
to the right side and solve.
Exact Form:
m
=
41
7
Decimal Form:
m
=
5.
¯¯¯¯¯¯¯¯¯¯¯¯
857142
Mixed Number Form:
m
=
5
6
7
Tap to view steps...
4x + 3y = -26
x-3y =-14
Answer:
x=-8, y=2
Step-by-step explanation:
Hope I helped!
A pair of corresponding angles is
Rewrite the following expression using the properties of logarithms.
log2 z + 2 log2x + 4 log9 y + 12 log9 x - 2 log2 y
You must show all of your work to receive credit.
What is the greatest surface area of a rectangular solid that can be built from 16 identical unit cubes?
Answer and explanation:
The surface area of a solid is the sum of the areas of all faces of the solid. The surface area of a cube is calculated using the formula 6a² since a cube has 6 faces in total likewise a cuboid.
We can say the rectangular solid is a cuboid and to find the surface area of the cuboid we add up the surface area of all 16 cubes
Surface area is therefore 16×6a²