Answer:
x=-2 or x=3
Step-by-step explanation:
2(-2)+4=0
3-3=0
A science class has 5 girls and 3 boys in the seventh grade and 4 girls and 4 boys in the eighth grade. The teacher randomly selects a seventh grader and an
eighth grader from the class for a competition. What is the probability that the students she selects are both boys?
Write your answer as a fraction in simplest form.
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:
How many solutions does this equation have?
6h−(9−3h)=6−3(h+2)
It has no solution but it has a answer.
Answer:h = 3/4
Exact form: h = 3/4
Decimal form: h = 0.75
Step-by-step explanation:
What I did was Factor and set each factor equal to zero. Also I tried to Find All Complex Solutions and it only has one, and how I came up with the solution is by solving the Inequality for h.
Answer:
no solution
Step-by-step explanation:
PLEASE HELP QUICK! 50 POINTS IF YOU HELP!!
I WILL GIVE PERSON BRAINLY IF THEY GET IT RIGHT!!!
match the equations of the lines with their graphs.
Answer:
a answer
Step-by-step explanation:
a answer is a answer to a answer to a answer
The number of termites in a nest in any given month can be represented by the
function f(t) = 4(3)^t where t represents the number of months.
The number of ants in a box can be represented by the function represented by the
table:
Months
0-1-2-3-4
Number 20-45-101-228-513
What is the positive difference in the number of termites and the number of ants in
the fourth year?
im pretty sure the answer is 189
The positive difference in the number of termites and the number of ants in the fourth month will be 189. Option B is correct.
What is the application of subtraction?In mathematics, subtraction is defined as the difference between two quantities. The application of subtraction can be used broadly in different applications to find or solve the problems such as finding differences between two quantities and many more.
It is given that, the number of termites in a nest in any given month can be represented by the function [tex]\rm f(t) = 4(3)^t[/tex].
For the fourth month,
f(4) = 4(3)⁴
f(4) = 324
From the table, it is observed that the number of ants in four months is 513.
The positive difference in the number of termites and the number of ants in the fourth month is found as,
=513-324
=189
Thus, the positive difference in the number of termites and the number of ants in the fourth will be 189. Option B is correct.
Learn more about the application of subtraction here:
brainly.com/question/15345330
#SPJ2
How are sequences whose consecutive terms differ by a constant modeled, and what can those models tell us?
Answer:
Linear functions
Step-by-step explanation:
1) Hot dogs are sold in packs of 10 and hot dog buns are sold in packs of 8. Tommy wants
to know the least number of packs of hot dogs and buns he needs to buy so that he does not
have any left over.
) Complete the table.
Answer:
10, 20,30, 40, 50
Step-by-step explanation:
You times them all by 10 for example: 1x10=10 2x10=20 3x10= 30 4x10=40 and 5x10=50.
If we buy four packs of hot dogs and five packs of buns then we don't have any left over.
What is Least common multiple?The abbreviation LCM stands for "Least Common Multiple." The smallest multiple that two or more numbers share is known as the least common multiple.
For example: Take two integers, 2 and 3.
Multiples of 2: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20….
Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30 ….
Therefore, 6 is the least common multiple of 2 and 3.
Given:
Packs 1 2 3 4 5
Hot Dogs 10 20 30 40 50
Bun 8 16 24 32 40
Also, LCM(10, 8)
10= 2 x 5
8= 2 x 2 x 2
So, LCM(10, 8)= 2 x 2 x 2 x 5 = 40
Hence, If we buy four packs of hot dogs and five packs of buns then we don't have any left over.
Learn more about LCM here:
https://brainly.com/question/20739723
#SPJ5
What is the value of u + 4v – w, if u = 10, v = 4, and w = 6?
Answer: 20
Step-by-step explanation:
u + 4v - w
10 + 4(4) - 6
10 + 16 - 6
26 - 6
20
What is the weight per centimeter
Answer:
ʕ•ﻌ•ʔʕ•ﻌ•ʔʕ•ﻌ•ʔʕ•ﻌ•ʔʕ•ﻌ•ʔʕ•ﻌ•ʔ
Does x=5 satisfy the equation 3x + 2 +5x= 95 explain
Answer:
No
Step-by-step explanation:
3x + 2 +5x
if x=5
3(5)+2+5(5)
=15+2+25
=42 which is not equal to 95
No, it doesn't satisfy the equation
Step-by-step explanation:
3x + 2 +5x = 95
Now putting the value of x
3×5 + 2 + 5×5 = 95
15 + 2 + 25 = 95
42 ≠ 95
Hence, x = 5 doesn't satisfy the equation 3x + 2 +5x= 95
pls help
A newspaper reports the following changes in the temperature of a city over 4 days:
1.34 degrees Celsius, negative 5 over 7 degrees Celsius, −0.75 degrees Celsius, 4 over 9 degrees Celsius
Write an expression to show the average daily change in the temperature of the city.
Write the steps to solve the expression. Round your answer to the nearest hundredth.A newspaper reports the following changes in the temperature of a city over 4 days:
1.34 degrees Celsius, negative 5 over 7 degrees Celsius, −0.75 degrees Celsius, 4 over 9 degrees Celsius
Write an expression to show the average daily change in the temperature of the city.
Write the steps to solve the expression. Round your answer to the nearest hundredth.
2x - 19
Step-by-step explanation:
Perimeter = sum of sides
First let's simplify each side
We can simplify each side by using distributive property. Distributive property is where you multiply the number on the outside of the parenthesis by the numbers on the inside of the parenthesis.
2(x + 5)
Distribute by multiplying x and 5 by 2
2 * x = 2x and 2 * 5 = 10
2x + 10
1/2(4x + 8)
Distribute by multiplying 4x and 8 by 1/2
1/2 * 4x = 2x and 1/2 * 8 = 4
2x + 4
-3(2x + 11)
Distribute by multiplying 2x and 11 by -3
-3 * 2x = -6x
-3 * -33
-6x - 33
Finally add all the simplified expressions ( remember that they represent the side lengths of the triangle )
2x + 10 + 2x + 4 - 6x - 33
Combine like terms
2x + 2x - 6x = -2x
10 + 4 - 33 = -19
Perimeter: -2x - 19
I couldn’t type it so I just took a picture. Please help me!! I’ll give you 25 points!
Answer:
It would be D.
Step-by-step explanation:
You have to collect like terms which would involve the 5[tex]\sqrt{7}[/tex] and -10[tex]\sqrt{7}[/tex] and do the same for the other 2
four times a number increased by 5 is equal to45
Answer:
Your answer is 10.
Step-by-step explanation:
45 - 5 = 40
40 / 4 = 10
Hope this helps!
Answer:
45-4=41
41-4=10
Step-by-step explanation:
10*4=40
Which is an equation of the line containing (1, –3) and (7, 15)?
y = 3x – 10
y = 3x
y = 3x – 6
y = –3x + 8
please gelp me with this question
Answer:
25
Step-by-step explanation:
75 ÷ 3 = 25
25 = 25
there are 50 sixth graders in a school. This is 20% of the school. How many students are in the school total?
NEED HELP NOW PLZ
6) Find KM 2x-2+10=7x-2
Answer:
2x-7x=-2-8
-5x=-10
x=2
Step-by-step explanation:
x=2
Graph the linear equation 5x-4y < 20
Answer: (See attached image file)
Step-by-step explanation:
Start by plotting given key featuresBased on the problem, we know that the x-intercept is (0,4) We find this by plugging in 0 for y, and solving for x (5x = 20)(x = 20/5 = 4) (4, 0) We can also easily solve for the y-intercept, which is (0,-5)We find this by plugging in 0 for x, and solving for y(-4y = 20)(y = -5) (0, -5) Since we know that the equation is linear, seeing as the highest exponent is 1, we know that these two points have to be connected by a single, straight line.Finally, we shade in the side to the LEFT of the line. This is because the equation asks for LESS THAN. If however the question had been 5x-4y>20, we would shade in the region to the right.
The school colors at Mission Middle School are green and white. Kendra volunteered to make cupcakes
for the school bake sale. To make the right shade of green frosting, she uses 7 drops of blue food
coloring for every 3 drops of yellow food coloring.
Write the sum of 7divided by 7x^6+ 4 dividend by 7x^6 in simplest form, if x = 0
Answer:
0
Step-by-step explanation:
The equation if I read this correctly is:
(7 / 7x⁶+4) / 7x⁶
Using x = 0 you would have:
[7 / (7(0)⁶+4)] / 7(0)⁶
(7 / 0 +4) / 0
(7/4) / 0 which is the same as 7/4 x 0 = 0
Divide. Round to the nearest tenth
9.23 divided by .48
Answer:
19.229166666666666666
what can 34 be divided by
Answer:
1, 2, 17, 34
Step-by-step explanation:
1 x 34 = 34
2 x 17 = 34
Answer:
Well 34 can be divided by anything...
Step-by-step explanation:
34/1 = 34
34/2 = 17
34/3 = 11.3333
34/4 = 8.5
34/5 = 6.8
34/6 = 5.6666
34/7 = 4.857...
34/8 = 4.25
34/9 = 3.7777
34/10 = 3.4
Hope this help!
Can you answer these plz?
Answer: the answer is d
Veronica is choosing between two health clubs. Studio A has membership is $23.00 and a monthly fee $24.75. Studio B has a membership fee of $53 and a monthly fee $17.25. After how many months will the total cost for each health club be same?
Answer:
5 months
Step-by-step explanation:
PLEASE MARK AS BRAINLIEST!!!!!Someone please help me
what is (4x+1)(2x-1)
is 9:2 equivalent to 18:4
Answer:
That is true
Step-by-step explanation:
9:2 = 18:4
9x2=18
2x2=4
Thus, this answer is true.
Answer:
Yes, because if you simplify 18:4, it would simplify to 9/2. Both ratios are equivalent.
Step-by-step explanation:
help plz ill give brainliest
Answer:
30 gallons
Step-by-step explanation:
find the 6 on the x axis, and it meets to the 30 on the y axis, therefore the answer is 30 gallons (sorry if this doesn't make sense or if it's incorrect)
please someone help me. Giving branliest!
Answer:
K would be 8
Step-by-step explanation:
8-2 = 6
6/3 = 2
In a class of students, the following data table summarizes how many students play an instrument or a sport. What is the probability that a student chosen randomly from the class plays a sport and an instrument?
Answer:
13 because all you need to do is multiply 10 by 3 then subtract 27
x^2 - 16 = 0 by extracting the square root
Answer:
{-4, 4}Step-by-step explanation:
x² - 16 = 0x² = 16x = √16x = ± 4