Can someone please help me with math.
Answer:
4. (2,1) 5. (-2,1) 6. (8, 80)
Step-by-step explanation:
4.2x + 4y - 2x + 2y = 8 - 2
6y = 6
y = 1
2x + 4 = 8
2x = 4
x = 2
(2,1)
5.3x + 4y + 6x - 4y = -2 - 14
8x = -16
x = -2
-6 + 4y = -2
4y = 4
y = 1
(-2,1)
6.multiply first equation by 4
4y = 40x
4y + 40x + 6y = 40x + 800
10y = 800
y = 80
80 = 10x
x = 8
(8, 80)
Is –2,823,680 − 8,957,599 positive or negative?
Answer:
negative
Step-by-step explanation: it has negative signs
22. A carton of milk holds 10 cups. A recite
for strawberry milkshakes requires 3/4 of a cup
of milk. How many recipes could you make
with the carton of milk?
Answer:
7
Step-by-step explanation:
Just simply divide 10 with 3/4
[tex]10*\frac{3}{4}\\\\=\frac{15}{2}[/tex]
Now you can't make 7.5 recipes and also You can't make 8 recipes either [if you round up the value].
Now round down the value
the answer is 7
3). Find the area of a circle with a radius of
3 ft.
Answer:
Step-by-step explanation:
1.5
Answer:
A=πr2=π·32≈28.27433ft²
Step-by-step explanation:
Last year at a certain high school, there were 110 boys on
the honor roll and 75 girls on the honor roll. This year, the
number of boys on the honor roll decreased by 20% and the
number of girls on the honor roll decreased by 4%. By what
percentage did the total number of students on the honor
roll decrease? Round your answer to the nearest tenth (if
necessary).
Answer:
13.5 if you round it
Step-by-step explanation:
Find the new amount of people who got the honor role and subtract that from the total. 185-160=25....which is 13.5% of 1185
there are 12 girls in Chloe's first grade class. The ration of girls to boys is 6:5. How many boys are in Chloe's class?
At a garage sale, Samuel purchased used books and DVDs. He bought a total of 18 items and spent $11. Each book cost $0.50 and each DVD cost $0.75. How many books did Samuel purchase?
Answer: 10 books
Step-by-step explanation:
Let the number of books bought be represented by x.
Let the number of dvds bought be represented by y.
The information given in the question can be formed into an equation as:
x + y = 18 ........ i
0.50x + 0.75y = 11 ....... ii
Multiply equation i by 0.75
Multiply equation ii by 1
0.75x + 0.75y = 13.50 ........ iii
0.50x + 0.75y = 11 ........ iv
Subtract iv from iii
0.25x = 2.50
x = 2.50/0.25
x = 10
Samuel bought 10 books
Margo can purchase tile at a store for $0.59 per tile and rent a tile saw for $72. At another store she can
borrow the tile saw for free if she buys tiles there for $1.39 per tile. How many tiles must she buy for the
cost to be the same at both stores?
What is this equation -4(y-2)=12
Please help with these two (I will report you if you try to give me a link to a virus)
Answer:
1 answer will be false and second answer will be true
I dont know if i did this right i wanted to know if someone could check for me
Answer:
I think 5 is wrong but 1 and 4 are right
ASAP HELP... I DONT UNDERSTAND.......
Answer:
8 is answer
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
[tex]8^2[/tex] is also [tex]8*8[/tex]
[tex]8*8[/tex] is 64
Hope I helped
Multiply.
(x+3)(2x+4)
A
3x2 + 7x + 12
B
2x2 + 7x + 12
C
3x2 + 10x + 12
D
2x2 + 10x + 1
Answer:
2x²+10x+12
Step-by-step explanation:
2x²+4x+6x+12
2x²+10x+12
What is an equation of the line that passes through the points (0, 3) and (5, -3)?
Answer:
y = -6/5x + 3
Step-by-step explanation:
y2 - y1 / x2 - x1
-3 - 3/ 5 - 0
= -6/5
To find the y-intercept, you need to plug the coordinates into the equation,
y = -6/5x + b
3 = -6/5(0) + b
3 = 0 + b
b = 3
The equation is y = -6/5x + 3
If x=12 and y=6x , what is the value of 8x2y ?
Answer:
13824 is the answer
Step-by-step explanation:
8*12*2*6*12
What is 58 x 564 please tell me
Answer:
that is the answer 32,712
Step-by-step explanation:
your welcome.
sorry I times it by 54 instead of 58
HELP
Karen bought a pizza for $11.95. She got back $3.05 in change. Write a
subtraction equation to find out how much money Karen had before she
the pizza.
Help me please!!! I’ll mark brainliest!!
Answer:
all the answers are c on that test my teacher did that same exact test
Step-by-step explanation:
mark brainliest!
should I be worried about my upcoming exams?
Answer:
i don't know but I am I have them Monday I'm pretty sure I will fail in math but you'll be good
Step-by-step explanation:
brainlyest please I'm trying to get my thing up
help with all pleas
1. what is 3% of 84
2. 378 is what percent of 450
3. 8 is what percent of 128
Answer:
Hello There!!
Step-by-step explanation:
1. 2.52
2. 84
3. 6.25
hope this helps,have a great day!!
~Pinky~
a triangle is doing on a grid if each box represents one square unit what is the area of the triangle
Answer:
4 square units
Step-by-step explanation:
Lillie can pack 12 boxes of pasta in an hour and a half find the unit rate
12 boxes of pasta packed in an hour and half then boxes packed in 1 hour will be 12/1.5 = 8
thus 8 boxes packed in an hour . this is called the unit rate, so the answer will be 8
BRAINLIEST-
Find the volume of the figure
Answer:
4080cm²
Step-by-step explanation:
identify the vertex of the graph
Answer:
(-1,-3)
Step-by-step explanation:
Answer:
y = a(x – h)2 + k,
Step-by-step explanation:
Parabolas always have a lowest point (or a highest point, if the parabola is upside-down). This point, where the parabola changes direction, is called the "vertex". If the quadratic is written in the form y = a(x – h)2 + k, then the vertex is the point (h, k). This makes sense, if you think about it.
A bill of $424 was paid with $5 bills and $2 bills. A total of 128 bills were used. How
many of them were fives?
Answer: 56
Step-by-step explanation:
Let the number of $5 be x
Let the number of $2 be y.
Based on the information given, we can form an equation as:
x + y = 128 ........ i
5x + 2y = 424 ....... ii
Multiply equation i by 2
Multiply equation ii by 1
2x + 2y = 256 ...... iii
5x + 2y = 424 ....... iv
Subtract iii from iv
3x = 168
x = 168/3
x = 56.
Therefore, there were 56 $5 bills.
can someone help me this is a life or death question
Answer:
3 is vertical angles
1 is same side interior
2 is corresponding angles
4 is straight angles
Step-by-step explanation:
Resuelva y responda a la pregunta: Andrés es mayor que su hermano Alex. Dentro de 3 años, la edad de Alex será la edad que tiene ahora Andrés y, dentro 9 años, la edad de Andrés será el doble de la edad que Alex tiene ahora. ¿Qué edades tienen los hermanos?
Answer:
Andrés tiene 15 años y Alex tiene 12 años.
Step-by-step explanation:
Como el enunciado dice que dentro de 3 años, la edad de Alex será la edad que tiene ahora Andrés puedes escribir una ecuación que indique que la edad de Andrés es igual a la edad de Alex más 3:
x=y+3, donde:
x es la edad de Andrés
y es la edad de Alex
Además, como se indica que dentro 9 años, la edad de Andrés será el doble de la edad que Alex tiene ahora puedes escribir una ecuación que indique que la edad de Andrés más 9 es igual a dos veces la edad de Alex:
x+9=2y
Ahora puedes reemplazar x=y+3 en x+9=2y y despejar y:
y+3+9=2y
12=2y-y
y=12
Finalmente, puedes reemplazar el valor de y en x=y+3 para encontrar el valor de x:
x=y+3
x=12+3
x=15
De acuerdo a esto, la respuesta es que Andrés tiene 15 años y Alex tiene 12 años.
Can anyone help me plss
Answer:
0.7 km per minute , -0.17 km per minute
Step-by-step explanation:
The computation of the average speed is shown below
As we know that
Average speed = Total distance ÷ total time
= (4 + 2 + 1) ÷ (32 + 22 + 16)
= 0.7 km per minute
Now the velocity is
= Change in displacement ÷ change in time
= (4 - 2 - 1) ÷ (32 -22 -16)
= 1 ÷ -6
= - 0.17km per minute
Can someone help me please
What is a Proportional Relationship?
1. One apple costs 25¢. Determine each cost.
a) 2 apples
b) 3 apples
c) 4 apples
d) 6 apples
e) 9 apples
f) 12 apples