Answer:
u=7
Step-by-step explanation:
First, add 4u and 3u because they are like terms.
7u+21=70
Second, subtract 21 from both sides.
7u=49
Finally, to isolate the variable divide 7 from both sides.
u=7
If you can explain and show me the answers that would be great!
Answer:
1) B=-12
2) 189.69
Step-by-step explanation:
Explanation 1: To find B, we have to replace the given points in the equation, that is , x=2 and y=1
[tex]3x+By+6=0\\3.2+B.1+6=0[/tex]
Then we solve for B.
[tex]6+B+6=0\\B+12=0\\B=-12\\[/tex]
Hence , B=-12
explanation 2: you have the following equation for the number of liters 3% milk:
[tex]0.03+0.1(200)-x=0.05(200)[/tex]
Solve the previous equation for x:
[tex]0.03x+20-x=10[/tex]
[tex]0.03-x=10-20\\-0.97x=-10\\x=10.31[/tex]
Hence , there are 10.31 liters of 3% milk
Add the numbers of liters 10% butterfat is :
[tex]200-10.31=189.69 liters[/tex]
PLEASE MARK ME AS BRAINLIEST
1
Mary and Darryl are selling flower bulbs for a school fundraiser. Customers can buy bags of
windflower bulbs and bags of daffodil bulbs. Mary sold 10 bags of windflower bulbs and 4
bags of daffodil bulbs for a total of $226. Darryl sold 6 bags of windflower bulbs and 4 bags of
daffodil bulbs for a total of $166. What is the cost each of one bag of windflower bulbs and
one bag of daffodil bulbs?
Answer:
15 windflower bulbs
19 daffodil bulbs
Step-by-step explanation:
Given
Represent windflower with W and daffodil with D.
So:
Mary's sales is:
10W + 4D = 226 --- (1)
Darryl's sales is:
6W + 4D = 166 ---- (2)
Required
Solve for W and D
We'll make use of elimination method.
Start by subtracting (2) from (1)
10W - 6W + 4D - 4D = 226 - 166
4W = 60
Multiply both sides by ¼
¼ * 4W = 60 * ¼
W = 60 * ¼
W = 15
Substitute 15 for W in (1)
10W + 4D = 226
10 * 15 + 4D = 226
150 + 4D = 226
Collect like terms
4D = 226 - 150
4D = 76
Multiply both sides by ¼.
¼ * 4D = 76 * ¼.
D = 19
a cell phone company charges one $20 for the phone and then $35 a month for phone service another cell phone company charges 55 a month for phone service with a free phone after how many months will the phone services cost the same
98 = 3y - 4 whats tha answer
Answer:
y = 34
Step-by-step explanation:
Answer:
34
Step-by-step explanation:
you would add 4 to both sides and get
102=3y
then you would divide by three and get
34=y
A store pays $100 for a barbecue grill and marks the price up by 7%. What is the amount
of the mark-up?
Answer:
$7
multiply .07 times 100
QUESTION 8
Some seventh-, and eighth-grade students.spend time at
the elementary school tutoring students. Of the students
who tutor, 21 are seventh-graders and 18 are
eighth-graders. What percent of the tutors are
seventh-graders?
A) 54%
B) 46%
C) 52%
D) 21%
target sells sweaters and sneakers in the ratio 1:3.The store sold 9 sweaters yesterday.How many sneakers were sold?
Answer: 27
Step-by-step explanation: since the ratio is 1:3 u mutiply
1 by 9 which equals nine and then u multiply 3 by 9 and u get 27. This should be right I am sorry if it isn't.
What is the gradient of the blue line?
Answer:
gradient = - 5
Step-by-step explanation:
Calculate the gradient (slope) m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 2, 5) and (x₂, y₂ ) = (- 1, 0) ← 2 points on the line
m = [tex]\frac{0-5}{-1+2}[/tex] = [tex]\frac{-5}{1}[/tex] = - 5
A cabinet holds 16 plates and
12 bowls. What is the ratio of plates
to bowls written in simplest form?
Answer:
4:3
Step-by-step explanation:
John works for a company that cuts down dead trees for the city. He needs to determine the height of the tree to ensure safety. He chooses a point 10 m from the base of the tree. From this point, the angle of elevation to the top of the tree is 46°. Determine the height of the tree to the nearest tenth of a meter.
Answer:
10.4m
Step-by-step explanation:
We solve the above question using the Trigonometric function of Tangent.
The formula is given as:
tan θ = Opposite/Adjacent
θ = Angle of Elevation = 46°
Opposite = Height of the tree = x
Adjacent = Distance from the base of the tree = 10m
Hence:
tan 46 = x/10
Cross Multiply
x = tan 46 × 10
x = 10.355303138m
Approximately to the nearest tenth = 10.4m
Gary wants to buy a video game with a selling price of 48 on sale for 50% off the sales tax in his state is 4.5% how much will Gary have to pay in all?
Answer:
$25.08
Step-by-step explanation:
48/2= 24(50% of 100% simplifies to 1/2)
24(0.045)=1.08
24 + 1.08 = 25.08
8, 6, 4, 2, 0, ...
The first 5 terms of a linear sequence are shown above.
What is the 100th term in the sequence?
9514 1404 393
Answer:
-190
Step-by-step explanation:
The n-th term of an arithmetic (linear) sequence is given by ...
an = a1 +d(n -1)
where a1 is the first term (8) and d is the common difference. We note that each term is 2 less than the one before, so the common difference is -2.
an = 8 -2(n -1)
Then the 100th term is ...
a100 = 8 - 2(100 -1) = 8 -198 = -190
The 100th term is -190.
If the diagonal of a television screen is 24 inches and the width is 16 inches,
what is the height of the screen? Leave the answer in simplified radical form
Please show you're work
Step-by-step explanation:
Let x be the height of the screen.
Using Pythagoras' Theorem,
we have x² + 16² = 24².
Therefore x² = 24² - 16² = 320,
x = √320 = 8√5 in.
The height of the screen is 8√5 inches.
WILL mark brainliest
Answer:
do u have to find the pattern?
Step-by-step explanation:
- The output of a function is 3 less than 6 times the
input. Find the input when the output is 15.
Answer:
(15+3)/6= the input
18/6= 3
since the output is three less than 6x the input, you need to add three. and if the output is 6 times the input after adding three, you have to divide by 6 to find out what the input originally was. you can check it by doing:
6*3= 18
and 18-3= 15 so it checks out.
Step-by-step explanation:
I hope this helps :)
6. What is the solution to the equation 2/3x + 1 = 1/6x - 7? *
X = -16
x = -4
x = 4
X = 16
Answer:
x=-16
Step-by-step explanation:
2/3x+1=1/6x-7.
Subtract 1/6x.
1/2x+1=-7
subtract 1.
1/2x=-8
divide by 1/2.
x=-16.
Hope this helps plz hit the crown :D
Step-by-step explanation:
[tex] \frac{2}{3} x + 1 = \frac{1}{6}x - 7 \\ \frac{4}{6} x - \frac{1}{6} x = - 7 - 1 \\ \frac{3}{6} x = - 8 \\ \frac{1}{2} x = - 8 \\ \boxed{ x = - 16}[/tex]
-16 is the right answer.Select the expression that is equivalent to 3(2x + 5) − 4x.
Question 12 options:
A. 2x + 15
B. x + 8
C. 2x + 5
D. x + 15
The number of pages in an Algebra 1 book is 99 less than the number of pages in a gemomerty book. Write and solve an equation to find the number n of pages in the geomerty book
Answer:
n = a + 99
Step-by-step explanation:
Given that :
a = number of pages in algebra book 1
n = number of pages in geometry book
a = n - 99
The number, n of pages in a geometry book is ;
Pages in algebra book = (pages in geometry book - 99)
a = n - 99
a + 99 = n - 99 + 99
a + 99 = n
The double number line shows that 5 kilograms of avocados cost $9 dollar .
Based on the ratio shown in the double number line, what is the cost for 1 kilogram of avocados?
Answer:
hii hope it helps
Step-by-step explanation:
sorry for these pics
A box contains 5 chocolate chip cookies, 4 sugar and 6 oatmeal raisin. What is the probability of picking a chocolate chip cookie?
1/9
1/3
2/21
2/3
The probability of picking a chocolate chip cookie is 1/3.
What is probability?Probability is the chance of occurrence of a certain event out of the total no. of events that can occur in a given context.
Given, A box contains 5 chocolate chip cookies, 4 sugar, and 6 oatmeal raisin.
N represents no. of.
So, N(S) = 5 + 4 + 6 = 15.
N(CC) = 5, N(SR) = 4 and N(OR) = 6.
∴ The probability of picking a chocolate chip cookie is = N(CC)/N(S).
= 5/15.
= 1/3.
learn more about probability here :
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kristen is building a pattern using triangles, the table shows the number of triangles in the first 4 terms of that pattern. which formula describes the number of triangles in the nth term of the pattern.
A. n=t+2
B.n=t+3
C. n=2t-1
D. n=2t + 3
Answer:
its C. im doing test to i saw different page
Step-by-step explanation:
diff pge
Select the correct answer.
ОА
Which equation represents the line that is perpendicular to y = $5 + 23 and passes through (-40,2012
- 15
y = - = - 30
= 5 + 52
= - 56
ОВ.
Ос. y =
OD.
Answer:
The question is written kinda bad, so i take the next two assumptions:
The original line is:
y = 5*x + 23
And we want to find a perpendicular line that passes through the point (-40, 2012)
Suppose that we have a linear equation:
y = a*x + b
A perpendicular line to this one, will have a slope equal to -(1/a)
Then a random perpendicular line to the one above, is:
y = -(1/a)*x + c
In this case, we start with the line:
y = 5*x + 23
Then the family of perpendicular lines to this one, will be like:
y = (-1/5)*x + c
Where c can be any real number.
Now, we also want this line to pass through (-40, 2012)
This means that when x = -40, the value of y must be 2012
We could replace these values in our equation above and solve it for c.
2012 = -(1/5)*(-40) + c
2012 = 40/5 + c
2012 = 8 + c
2012 - 8 = c = 2004
Then the equation is:
y = -(1/5)*x + 2004.
An ice cream shop offers a choice of three types of cones and 31 flavors of ice cream a customer gets to choose a cone and a type of ice cream how many events are described
Answer:
2 events are described.
Step-by-step explanation:
Because only three types of cones and 31 flavours of ice cream.
which of the following is a point on the graph of y=(1/2)x
Answer:
left, hope this helps
Step-by-step explanation:
Writer the ratio in 3 ways 4 books for every 25 shelves
Answer:
400:2500 , 40:250 ,and 4:25
A bottle contains 15 marbles: 9 are white and 6 are green. What is the
probability of picking a white?
Answer: 3/5
Step-by-step explanation:
Fist find out how many whites are there and divide it by the total to find the probability.
9/15 simplify it to 3/5
15/x = 5/6
Plz help me solve this proportion of multiplication plz help
Step 1: Cross-multiply.
15 /x = 5 /6
(15)*(6)=5*x
90=5x
Step 2: Flip the equation.
5x=90
Step 3: Divide both sides by 5.
5x /5 = 90 /5
x=18
Answer:
x=18
Answer:
x=18
Step-by-step explanation:
divide 15 by 5/6= 15 times 6/5, simplify, 3 times 6, simplify, 18
give the other person brainliestt
which statement and reason best complete the proof
Answer:
Segment EG ≅ segment EG by the reflexive property.
Step-by-step explanation:
In the diagram given, already, two angles (<H and <HEG) of ∆HEG has been stated to be equal to two corresponding angles (<F and <FGE) of ∆FGE.
To prove that ∆HEG is congruent to ∆HEG by the Angle-Angle-Side Congruence Theorem, we need to state that they also have one corresponding side that is congruent.
Therefore, the statement and reason that will complete the proof would be:
Segment EG is congruent to segment EG by the reflexive property.
Both triangles share the same segment, EG. This completes the proof.
How to put 1/25 as fraction simplified
Answer:
1/25
Step-by-step explanation:
1/25 is simplified, as 1 and 25 have no common factors.
(Unless you're saying 1/5 * 1/5?)
Fraction 1/25 is Already in its simplest form. It may be expressed in decimal form as 0.04
To simplify the fraction, we have to divide the numerator and denominator by their greatest common divisor (GCD).
Do the factorization of numerator and denominator
1 can be written as [tex]1\times1[/tex]
And 25 can be written as [tex]1\times5\times 5[/tex].
After factorization, we see that 1 is the greatest factor, which is common in both.
Divide the numerator and denominator by their greatest common divisor (1).
[tex]\dfrac{1 \div 1}{25\div1}[/tex]
[tex]=\dfrac{1}{25}[/tex]
Hence, 1/25 can not be further simplified.
Learn more about fractions here:
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Two apps on your phone take away points for using your phone at school. You have 140 points on the first app and 80 points on the second app when a school day begins. Each time you check your phone, you lose 10 points on your first app and $p$ points on your second app. After you check your phone ten times, you have the same number of points on each app. Find the value of $p$
Answer: p = 4
Step-by-step explanation:
For app one, you start with 140 points, and you lose 10 each time you check your phone.
Then, if you check your phone x times, you will have:
140 - x*10 points in total.
For app two, you start with 80 points, and you lose p points each time you check your phone.
Then, if you check your phone x times, you will have:
80 - x*p points left
We know that when x = 10, you have the same number of points in both apps, then we have the equation:
140 - (10)*10 = 80 - (10)*p
We can solve this for p
140 - 10*10 = 80 - 10*p
140 - 100 = 80 - 10*p
40 = 80 - 10*p
10*p = 80 - 40
10*p = 40
p = 40/10 = 4