Answer:
To find the probability of picking two boys, we need to first know how many different ways she can pick the 7th and 8th grader.
There are 12 7th-graders and 8 8th-graders. So the total number of ways she can pick is:
12
×
8
=
96
To get two boys picked, there are 5 boys in the 7th-grade class and 4 in the 8th-grade class, so there are:
5
×
4
=
20
ways
Which gives us the probability of:
20
96
=
5
24
≅
21
%
Step-by-step explanation:
Kieth has landscaping bricks that are 0.75 feet long. Kieth puts 19 bricks end to end along a sidewalk. What is the total length of all thee red bricks he uses. Enter your answer in the box
Answer: 14.25 ft
Step-by-step explanation:
Assuming all the bricks used are red:
Keith puts 19 bricks end to end along a sidewalk and each one of those bricks is 0.75 ft long.
When put end to end therefore, the total length will be that length multiplied by the number of bricks laid:
Total length = Number of bricks laid * Length of each brick
= 19 * 0.75
= 14.25 ft
i do not know wich one it is
Answer:
B
Step-by-step explanation:
You are right becuase thats mainly were the cluster is.
A plumbing service costs $32.50 per hour of work. Let x represent the amount of time that a job takes and let y represent the total cost.
- Is it continuous or discrete?
Answer:
This would be discrete
Hope this helps
what is 4(11h +3g)?????
Answer:
[tex]12g+44h[/tex]
Step-by-step explanation:
Step 1: Rearrange terms
[tex]4(11h+3g)\to4(3g+11h)[/tex]
Step 2: Distribute
[tex]4(3g+11h)\to12g+44h[/tex]
Answer:
44h+12g
Step-by-step explanation:
Okay, so, this a standard algebraic expanding problem, so:
We take our 4(11h + 3g)
because we have parenthesis, we have to distribute the 4:
4 x 11h + 4 x 3g = 44h + 12g
So, 4(11h + 3g) expanded is 44h + 12g
hope this helps:)
Which statements about opposites are true?
Select each correct answer.
The opposite of zero is zero.
A number and its opposite are located the same distance from zero on a number line.
The product of a number and its opposite is always 1.
The opposite of a negative number is always a positive number.
9514 1404 393
Answer:
A, B, D
Step-by-step explanation:
The "opposite" of a number is that number with its sign changed.
__
The opposite of zero is zero.A number and its opposite are located the same distance from zero on a number line.The opposite of a negative number is always a positive number.Answer:
The "opposite" of a number is that number with its sign changed.
Find x, the missing side length in the right triangle 18 8
Answer:
19.7
Step-by-step explanation:
a^2+b^2=c^2
so 18^2+8^2=x^2
324+64=388
x is about 19.7
Help help help help
Number 1 and 2 in the next q
Answer:
either 81 or 162
Step-by-step explanation:
I got 81 by 27×12
162=27×12×2
need help pls I give 20 points out
How many solutions does the system have? 2x+3y=-6 3x-4y=-12. A) exactly one solution b) no solution c) infinity many solutions
Answer:
a.
Step-by-step explanation:
by elimanation,cimparison or substitution you wull get the value of x=-60/17 and y=6/17
What is the value of x?
David's earnings recently changed from $5500 to $6325. By what percent did the earnings change?
Answer: In percentage, the answer is 115%
Step-by-step explanation: if you want to find the rise, just simply divide 5500 from 6325, or 6325/5500. You will get 1.15 but converted to percentage, that is 115%
What is the median for the data set below?
a number increased by 8 is 21 help
Answer:
the number is 13
Step-by-step explanation:
13+8=21
Answer:I think it means that a number plus 8 is 21? or possibly multiplied?
Step-by-step explanation:
. Your family ate 6 out of 8 pieces of a pizza. Tell
how to express the amount they ate and the
amount leftover as two fractions. Be sure to
write the fractions in simplest form.
Answer:
[tex] \frac{6}{8} \\ \\ \\ \frac{2}{8} [/tex]
what is the value of x??
−3(x+9)=33
Answer:
x= −20
Step-by-step explanation:
Let's solve your equation step-by-step.
−3(x+9)=33
Step 1: Simplify both sides of the equation.
−3(x+9)=33
(−3)(x)+(−3)(9)=33(Distribute)
−3x+−27=33
−3x−27=33
Step 2: Add 27 to both sides.
−3x−27+27=33+27
−3x=60
Step 3: Divide both sides by -3.
−3x −3 = 60 −3 x=−20
Answer:
x=−20
Hope this helps! :)
Answer:
x=-20
Step-by-step explanation:
−3(x+9)=33
Divide both sides by -3
-3(x+9)/-3=33/-3
simplify;
-3(x+9)/-3
Divide the numbers:3/3=1
=x+9
Simplify 33/-3
=-33/3
Divide the numbers 33/3
=-11
x+9=-11
Subtract 9 from both sides
x+9-9=-11-9
Simplify;
x=-20
Helped by none other than the ONE and ONLY #QUEEN aka #DRIPPQUEENMO!
What is the solution to the system of equations graphed below???
Answer:
The solution is (-2,-2)
Step-by-step explanation:
This is the point where the two graphs intersect.
What is 6/8+ 4/2-3/6?
Answer:
the answer is 2.25
Step-by-step explanation:
Answer:
2.25
Step-by-step explanation:
Winston earns $140.00 by selling 56 hotdogs at a concession stand at school Using the same rate for the cost of one hotdog, how many more hotdogs would Winston need to sell to earn a total of $175.00?
Answer:
175/2.5=70
Step-by-step explanation:
Choose all the examples that can be measured using volume.?
the amount of cereal in a box
the amount of milk in a milk carton
the amount of space inside a van
the amount of writing space on a piece of paper
the amount of space a picture takes up on the wall
Answer:
the amount of cereal in a box
the amount of milk in a milk carton
the amount of space inside a van
The equation 2x2+2y2−8x−12y+16=0 2 x 2 + 2 y 2 − 8 x − 12 y + 16 = 0 defines a circle. Which of these shows a correct step for determining the center and radius of this circle? Choose all that are correct.
(2x2−8x+16)+(2y2−12y+36)=−16+36
(
2
x
2
−
8
x
+
16
)
+
(
2
y
2
−
12
y
+
36
)
=
−
16
+
36
(x−4)2+(y−9)2=5
(
x
−
4
)
2
+
(
y
−
9
)
2
=
5
(x2−4x+4)+(y2−6y+9)=−8+13
(
x
2
−
4
x
+
4
)
+
(
y
2
−
6
y
+
9
)
=
−
8
+
13
x2+y2−4x−6y=−16
x
2
+
y
2
−
4
x
−
6
y
=
−
16
(x−2)2+(y−3)2=5
what do i choose? because all i see is a lot of numbers and words lol
PLEASE HURRY: On Monday, Florencia's hair was h centimeters long. She got a haircut on Tuesday, so her hair was only 75% of
the length it was on Monday.
Which of the following expressions could represent how many centimeters long Florencia's hair was after the
haircut?
Chose 2 answers:
h(1 - 0.75)
(1 - 75/100)h
3/4h
0.75h
1/4h
Answer:
It seems that you are trying to find the length of hair of Florencia on Tuesday.
Given that length of the hair of Florencia on Monday = h centimeters
On Tuesday, she got hair cut.
So new length of the hair of Florencia on Tuesday = 75% of Monday value
= 75% of (h)
= 0.75* (h)
= 0.75h
Hence final answer is the length of the hair of Florencia on Tuesday is ( 0.75h ) centimeters.
Answer:
3/4h and 0.75h
Step-by-step explanation:
khan
Write the equation of the line that passes throught the points (-1, 6) and (5, -4).
Answer:
y = -5/3x + 13/3
Step-by-step explanation:
(-1, 6) and (5, -4).
First you want to find the slope of the line that passes through these points. To find the slope of the line, we use the slope formula: (y₂ - y₁) / (x₂ - x₁)
Plug in these values:
(-4 - 6) / (5 - (-1))
Simplify the parentheses.
= (-10) / (5 + 1)
= (-10) / (6)
Simplify the fraction.
-10/6
= -5/3
This is your slope. Plug this value into the standard slope-intercept equation of y = mx + b.
y = -5/3x + b
To find b, we want to plug in a value that we know is on this line: in this case, I will use the second point (5, -4). Plug in the x and y values into the x and y of the standard equation.
-4 = -5/3(5) + b
To find b, multiply the slope and the input of x(5).
-4 = -25/3 + b
Now, add 25/3 to both sides to isolate b.
-4 ⇒ -12/3
-12/3 + 25/3 = 13/3
13/3 = b
Plug this into your standard equation.
y = -5/3x + 13/3
This is your equation.
Check this by plugging in the other point you have not checked yet (-1, 6).
y = -5/3x + 13/3
6 = -5/3(-1) + 13/3
6 = 5/3 + 13/3
6 = 18/3
6 = 6
Your equation is correct.
Hope this helps!
How to Divide $120in the ratio 3:5
120 ÷ ( 3 + 5 ) = 120 ÷ 8 = 15
15 × 3 = 45
15 × 5 = 75
_________________________________
Answer:
15:75
Step-by-step explanation:
120 = 3x plus 5x
120 = 8x
120/8 = x
x = 15
3*15 = 45 and 5*15 = 75
‼️Someone help please..
Find the missing term in each sequence
Answer:-170
Step-by-step explanation:as you can see it is going in a pattern from the negative ok thanks.
Can some one help me with all of these if not can you help me with 3-4
What is ?
A.20º
B.70º
C.90º
D.180º
Answer:
i think it is 90
Step-by-step explanation:
remember the line is srait
PLZ HELP DUE TODAY THE ANSWER CHOICES ARE
A.315
B.84
C.273
D.231
No links I will report forgot to put the picture last time plzzz
Two angles are supplementary. One angle is 25°. What is the measure of the other angle?
Answer:
The other angle is 155°.
Step-by-step explanation:
Supplementary angles are two angles that have a sum of 180°.
I found my answer my subtracting 25 from 180 (180-25) and my difference was 155.
And, 155 + 25 = 180°.
Therefore, the other angle is 155°.
write in slope-intercept form the equation of a line having slope -8 and Y-intercept -2
Answer:
Step-by-step explanation:
The slope-intercept form of a linear equation is:
y
=
m
x
+
b
Where
m
is the slope and
b
is the y-intercept value.
For this problem we are told:
m
=
−
7
b
=
6
Substituting these values into the formula gives:
y
=
−
7
x
+
6
Suppose a city with population of 400,000 has been growing at a rate of 5% per year. If this rate continues, find the population of this city in years.
The number of years value isn't given, we could use an hypothetical value, which can be substituted for the correct number of years given in your exercise in other to find the exact answer.
Using a t value of 10 years
Answer:
651558
Step-by-step explanation:
Given that:
Initial population, P0= 400,000
Growth rate, r = 5%
Using the relation :
P(t) = P0 * (1 + r)^t
t = number of years = 10
P(10) = 400000 * (1 + 0.05)^10
P(10) = 400000 * (1.05)^10
P(10) = 400000 * 1.628894626777
P(10) = 651557.8507
= 651558 nearest whole number.
Recall that, the t value used is hypothetical and should be replaces with te exact value given in your question.