Answer:
40+5x=62.50
Step-by-step explanation:
8 friends 5 dollars is 40 dollars. Each popcorn bag is 2.5
40+5(2.5)=62.5
40+12.5=62.5
Answer:
62.50 + 8x = 40
Brailest plez and ill give you brainiest!
Step-by-step
What is the area of the triangle?
24
10
26
units2
NEED HELP ASAP!!! please help me
hiii please help i’ll give brainliest if you give a correct answer ty!!
I need help!!
Which of the following expression is equal to y/x^2?
−11=r+4+4r Plz provide step by step
Answer:
R=-3
Step-by-step explanation:
-11=r+4+4r
-11=5r+4
-4 both sides
-15=5r
Divide 5 both sides
r=-3
Answer:
r=-3
Step-by-step explanation:
Can some one help me
Answer:
hey long time no see!
You are on a treasure-diving ship that is hunting for gold and silver coins. You reel in a wire basket that contains gold and silver coins, among other things. The basket holds no more than 50 pounds of material. Each gold coin weighs about 0.5 ounce, and each silver coin weighs about 0.25 ounce. You want to know the different numbers of each type of coin that could be in the basket.
Answer:
Inequality equation:
0.03125x + 0.015625y ≤ 50 pounds
Step-by-step explanation:
We convert the ounces to pounds
1 ounce = 0.0625 pound
For the gold coin = 0.5 ounce
1 ounce = 0.0625 pounds
0.5 ounce = x
x = 0.5 × 0.00625 pounds
x = 0.03125 pounds
For the Silver coin = 0.25 ounce
1 ounce = 0.0625 pounds
0.25 ounce = x
x = 0.25 × 0.00625 pounds
x = 0.015625 pounds
The basket holds no more than 50 pounds of material.
Let the number of gold coins = x
The number of silver coins = y
Hence: our inequality equation:
0.03125x + 0.015625y ≤ 50 pounds
The diagram shows 3 identical circles inside a rectangle.
Each circle touches the other two circles and the sides of a rectangle,
as shown in the diagram.
The radius of each circle is 28 mm.
Work out the area of the rectangle.
Give your answer correct to 3 significant figures.
Answer:
11700 mm²
Step-by-step explanation:
A rectangle is a quadrilateral with two equal, opposite and parallel sides. Each of the angles in a rectangle is 90°.
The horizontal distance of the rectangle = r + r + r + r = 4r
The vertical distance = r + h + r = 2r + h
Where h is the distance between the midpoint of the 2 up circles and the midpoint of the down circle.
Using Pythagoras:
(2r)² = h² + r²
h² + r² = 4r²
h² = 3r²
h = √3r²
h = r√3
Vertical distance = 2r + h = 2r + r√3
Area of rectangle = vertical distance * horizontal distance
Area = 4r * (2r + r√3) = 8r² + 4r²√3 = 4r²(2 + √3)
Substituting:
Area = 4r²(2 + √3) = 4(28²)(2 + √3) = 11703.711 mm²
Area = 11700 mm² to 3 s.f
please hurry! it's 4 a quiz
Answer:
AD∥BC,BD is the transversal line
⟹∠ADB=∠DBC (∵alternate angles)
⟹z=30
Step-by-step explanation:
2. Explain, in words, how you would solve this problem. Hint: you should get 1 point
a whole number answer.
9 – 24 = 4(3)
Your answer
Answer:
9-24=4(3)
-15=4×3
-15=12
Answer:
9-24= 4(3)
Multiply first
9-24=12
Then subtract the other digits in the side
-15=12
Step-by-step explanation:
Follow the PEMDAS rule which it to do which ever one of these first before furthering the math.
(Parentheses, exponents, multiply, division, addition and subtraction)
BUT hopefully there wasn’t a missing letter variable in the equation so you could get a single answer
Determine the input, output and function of the following question
K=3H-11
Answer:
do we need to explain in words or numbers
Step-by-step explanation:
Given f(x) = 2x^2 – 9x + 2, g( x)= 1-6x, and
h(x) = x2 - 4, find (f o h) (2)
Answer:
The value of (f о h) (2) is 2
Step-by-step explanation:
Let us solve the question
In the composite function (f о h) (x) we substitute x in f(x) by h(x)
∵ f(x) = 2x² - 9x + 2
∵ h(x) = x² - 4
∵ We need to find (f о h) (2)
→ That means use x = 2
∴ x = 2
We will find at first h(2), then substitute x in f by the answer of h(2)
∵ x = 2
∵ h(2) = (2)² - 4
∴ h(2) = 4 - 4
∴ h(2) = 0
Now substitute x in f by 0
∵ x = 0
∵ f(0) = 2(0)² - 9(0) + 2
∴ f(0) = 0 - 0 + 2
∴ f(0) = 2
∴ (f о h) (2) = 2
On Friday, an art museum sold 720 adult tickets. The number of adult ticket sold was 9 times the number of children's ticket sold. On Saturday, the museum sold 6 times as many children's ticket as on Friday How many children ticket sold on saturday
Answer: 480 children's tickets
Step-by-step explanation:
On the Friday, 720 adult tickets were sold.
This number was 9 times the number of children's tickets sold. Number of adult tickets sold was therefore:
= 720/9
= 80 children's tickets.
On the Saturday, 6 times the above amount was sold:
= 6 * 80
= 480 children's tickets
solve 15x + 60 < 240
Answer:
15x+60<240 is x<12
Step-by-step explanation:
Let's solve your inequality step-by-step.
15x+60<240
Step 1: Subtract 60 from both sides.
15x+60−60<240−60
15x<180
Step 2: Divide both sides by 15.
15x
15
<
180
15
x<12
Answer:
x<12
Step-by-step explanation:
Mr. Park paid $85.00 for 4 shirts. Each shirt cost the same amount. What was the cost of each shirt in dollars and cents?
Answer:
I think you're supposed to do 85/4
Step-by-step explanation:
85 devided by 4
$21.25 for each shirt
Javier earned the following scores on his first five tests: 77, 89, 84, 80, and 85. What score did he earn on his last test to have a test mean of 84%?
84%
88%
86%
89%
Answer:
88
Step-by-step explanation:
it meets the mean
Answer:
88%
Step-by-step explanation:
:)
can anyone explain how to do an equation like this and what the answer would be? i’m so confused haha. thank you! answer asap!!
Step-by-step explanation:
-4(2x+5)
-8x+-20
...................
Read the caption thank you :)) if you know it let me know!
Answer:
∠ A = 50°
Step-by-step explanation:
In a parallelogram, consecutive angles are supplementary, sum to 180°
∠ A + 130° = 180° ( subtract 130° from both sides )
∠ A = 50°
The nth term of a quadratic sequence is an² + bn where a and b are integers. The second term of the sequence is 8, and the fifth term is 65. What is the value of the tenth term in the sequence?
Step-by-step explanation:
When n = 2,
(2)²a + (2)b = 8.
=> 4a + 2b = 8.
When n = 5,
(5)²a + (5)b = 65.
=> 25a + 5b = 65.
4a + 2b = 8. => 10a + 5b = 20
25a + 5b = 65
- (10a + 5b = 20)
=> 15a = 45, a = 3.
Therefore 4(3) + 2b = 8, 2b = -4, b = -2.
We have a = 3 and b = -2.
Hence when n = 10,
an² + bn
= (10)²(3) + (10)(-2)
= 300 - 20
= 280.
The 10th term of the sequence is 280.
Answer:
The 10th term of the sequence is 280
Step-by-step explanation:
When n = 2,
(2)²a + (2)b = 8.
=> 4a + 2b = 8.
When n = 5,
(5)²a + (5)b = 65.
=> 25a + 5b = 65.
4a + 2b = 8. => 10a + 5b = 20
25a + 5b = 65
- (10a + 5b = 20)
=> 15a = 45, a = 3.
Therefore 4(3) + 2b = 8, 2b = -4, b = -2.
We have a = 3 and b = -2.
Hence when n = 10,
an² + bn
= (10)²(3) + (10)(-2)
= 300 - 20
= 280.
what is the slope of the line
Answer:
[tex]consider \: {1}^{st} and \: {3}^{rd} columns\\ slope = \frac{(96 - 32)}{(12 - 4)} \\ = \frac{64}{8} \\ slope = 8[/tex]
Sara sold 461 tickets for a school play. Student tickets cost $3 and adult tickets cost $4. Sara’s sales totaled $1624.How many adult tickets and how many student tickets did Sara sell?
Answer:
220 student and 241 adults
Step-by-step explanation:
x+y=461
3x+4y=1624
y=-x+461-----> 3x+4(-x+461)=1624
-x+1844=1624
+x -1624
x=220
3(220)+4y=1624
660+4y=1624
4y=964
y=241
There are 241 adult tickets and 220 student tickets did Sara sell.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
Sara sold 461 tickets for a school play.
And, Student tickets cost $3 and adult tickets cost $4. Sara’s sales totaled $1624.
Let number of adult tickets = x
And, Number of student tickets = y
Hence, We get;
⇒ x + y = 461 .. (i)
And, 4x + 3y = 1624 .. (i)
Multiply by 3 in (i);
⇒ 3x + 3y = 1383 .. (iii)
Subtract form (ii);
⇒ x = 241
And, From (i);
⇒ x + y = 461
⇒ 241 + y = 461
⇒ y = 461 - 241
⇒ y = 220
Thus, There are 241 adult tickets and 220 student tickets did Sara sell.
Learn more about the mathematical expression visit:
brainly.com/question/1859113
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10
(10 Points)
What is the domain of the relation shown below?
{(4,2),(1,1),(0,0),(1,-1),(4,-2)}
1) {0,1,4}
3) (-2,-1,0, 1, 2,4}
2) (-2,-1,0, 1, 2}
4) (-2,-1,0,0,1, 1, 1, 2,4,4}
Enter your answer
Answer:
1) {0,1,4}
Step-by-step explanation:
(x,y)
domain is x
range is y
so in this case the domain is 0,1,4
[tex]\frac{a-3b}{a+2b} = \frac{4}{3}[/tex]
what is the value of a:b??
Answer:
[tex]a:b = -17:1[/tex]
Step-by-step explanation:
Given
[tex]\frac{a-3b}{a+2b} = \frac{4}{3}[/tex]
Required
Find a:b
[tex]\frac{a-3b}{a+2b} = \frac{4}{3}[/tex]
Cross Multiply
[tex]3(a-3b) = 4(a+2b)[/tex]
Open brackets
[tex]3a - 9b = 4a + 8b[/tex]
Collect Like Terms
[tex]3a - 4a = 8b+9b[/tex]
[tex]-a = 17b[/tex]
Divide through by -b
[tex]\frac{-a}{-b} = \frac{17b}{-b}[/tex]
[tex]\frac{a}{b} = \frac{17}{-1}[/tex]
[tex]\frac{a}{b} = \frac{-17}{1}[/tex]
Represent as a ratio
[tex]a:b = -17:1[/tex]
Megan is trying to break the school's long jump
record. To what level of accuracy and precision
should her jump be measured?
Find the unknown side length. Simplify radical answers.
Point E on the diagonal of the rectangle ABCD, AE:EC=3:1, and AB:BC=5:4. Find the ratio of DE to BE
Answer:
3.88 : 3.25 ≈ 13 : 11
Step-by-step explanation:
I don't know what are you in, geometry or algebra? I'll post my way of solution. It may need some calculator calculation that I can't give detail of steps here. I just like to explore something, wish it help.
suppose D is the origin, DA = 4 and AB = 5
A (0,4) B(5,4) C(5,0) D(0,0)
AE/AC = 3/4 (i.e. AE/EC = 3/1)
parallel of EF with DC and EG with BC
CF/BC = CE/AC = 1/4
CF = BC x 1/4 = 4 x 1/4 = 1
DG/DC = AE/AC = 3/4
DG = DC x 1/4 = 5 x 3/4 = 15/4
coordinator of E (3.75 , 1)
length of DE = √3.75² + 1² = 3.88
length of BE = √1.25² + 3² = 3.25
DE : BE = 3.88 : 3.25 ≈ 13: 11 (3.88/13 ≈ 0.29, 3.25/11 ≈ 0.29)
How much punch did Susan make altogether? 3 cups seltzer water 1 gallon apple juice 4 pints lemonade
Answer:
Susan makes [tex]13\frac{1}{2}[/tex] pints of punch.
Step-by-step explanation:
Consider the provided information.
We know that:
2 cups (c) = 1 pint (pt)
4 cups (c) = 1 quart (qt)
16 cups (c) = 1 gallon (gal)
So 3 cups = [tex]1\frac{1}{2}[/tex] pint
1 gallon = 16 cups = 8 pint
The three mixed together would make [tex]1\frac{1}{2}+8+4=13\frac{1}{2}[/tex] pints of punch.
Hence, Susan makes [tex]13\frac{1}{2}[/tex] pints of punch.
The manager of a local skate park wants to paint a skating ramp shaped like a
triangular prism blue. A net of the skating ramp is shown. The parts that will be painted
are shaded
How many square feet of space on the skating ramp will be painted blue?
660 square feet
480 square feet
420 square feet
260 square feet
Answer:
123
Step-by-step explanation:
Answer:
260 square feet.
An angle measures 8.2° more than the measure of its complementary angle. What is the
measure of each angle?
9514 1404 393
Answer:
49.1°, 40.9°
Step-by-step explanation:
Let x represent the smaller angle. Then the larger is x+8.2 and the total of the two angles is ...
x + (x +8.2) = 90
2x +8.2 = 90 . . . . . collect terms
x + 4.1 = 45 . . . . . . .divide by 2
x = 40.9
x +8.2 = 49.1
The two angles are 49.1° and 40.9°.
Picture is attached to it please help I need it
Answer:
x = 80, y = 100
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here n = 7 , then
sum = 180° × 5 = 900°
Sum the interior angles and equate to 900
y + 135 + 140 + 150 + 120 + 135 + 120 = 900, that is
y + 800 = 900 ( subtract 800 from both sides )
y = 100
x and y are adjacent angles and are supplementary, that is sum to 180°
x + y = 180
x + 100 = 180 ( subtract 100 from both sides )
x = 80
Thus x = 80 and y = 100