Jared bought 14 books at the school book fair. The fair uses this equation, C=2.75b to determine the cost of the books C, for b number of books. How much did Jared pay for his books?
Answer:
$38.50
Step-by-step explanation:
First, multiply 2.75 by the number of books he purchased which was 14. When you do this you get the number 38.50 which is the cost for the books.
How do I solve for x?
i don't know
Step-by-step explanation:
how, help us HHAHAHAHAHAHAHAHHAHAHAHHAA
Solve and show your work: |4x − 1| = 13
PLEASE HELP ME
Answer: x=7/2, x=-3
Step-by-step explanation:
First lets do look at it without the absolute value marks
4x-1=13
4x=14
x=7/2
Now lets do the same but assume 13 is negative,
4x-1=-13
4x=-12
x=-3
You deposit $400 in an account. The account earns $72 simple interest in 6 years. What is the annual interest rate?
Answer:
3% annually
Step-by-step explanation:
Answer:
3%
Step-by-step explanation:
I know this becaus the teacher helped me
For which inequality is .r = 5 a solution?
А х<2
в. х> 9
ОО
) с. х< 18
OD. x> 42
Answer:
The answer is C x<18 indirectly saying 5<18 the other options has no match for it
Graph 2.4 on the number line. Please.
Answer:
It is the second line after 2. the number line goes up in 0.2
Step-by-step explanation:
Read the passage and answer the question that follows.
Teachers should really think about the amount of math homework they assign to their students. All types of learners hate homework. If a student already knows how to work the math, why do they need to practice it over and over? And, students who don’t “get it” in class end up practicing incorrectly over and over, leading to an extreme dislike for school. I think requiring just a few practice problems is more appropriate for students.
How could the author revise the hasty generalizations?
o Suggest that teachers do not know what is best for students.
o Use more emotional language, so the reader feels something strongly.
o Offer suggestions for helping students who struggle in math.
o Quote a friend who enjoys math and another friend who likes it less.
Answer: It’s A. Quote a friend who enjoys math and another friend who likes it less.
Step-by-step explanation:
Answer:
Its A
Step-by-step explanation:
Person above me got it correct (Right on Edge) Give him brainliest
the algebraic expression for 24a+27
Answer:
3(8a+9) correct me if i'm wrong.
Step-by-step explanation:
What is the center of the circle for this equation:
x² + (y - 9)² = 25
Answer:x=√−y2+18y−56 or x=−√−y2+18y−56
Step-by-step explanation:
x2+(y−9)2=25
Step 1: Add -y^2 to both sides.
x2+y2−18y+81+−y2=25+−y2
x2−18y+81=−y2+25
Step 2: Add 18y to both sides.
x2−18y+81+18y=−y2+25+18y
x2+81=−y2+18y+25
Step 3: Add -81 to both sides.
x2+81+−81=−y2+18y+25+−81
x2=−y2+18y−56
Step 4: Take square root.
x=√−y2+18y−56 or x=−√−y2+18y−56
Answer:
x=√−y2+18y−56 or x=−√−y2+18y−56
Lori bought 6,000 grams of cayenne pepper and 2 kilograms of black pepper. How many grams of pepper did she buy all together?
Answer:
2000
Step-by-step explanation:
1 kilogram = 1000 grams
2*1000=2000
what is 3x + 7.9 = 9.1
Answer:
= 0 . 4
Step-by-step explanation:
Answer:
Please refer to the attachment above
Hope it helps
The aspect ratio, the ratio of the width to the height, of various computer monitors is listed in the table below.
Answer: Monitor C is the different one.
Step-by-step explanation:
The aspect ratio is the relationship between width and height.
So we only need to see the quotients between width and height for each monitor and see which quotient is different.
Monitor A:
Quotient = 1152/864 = 1.333....
Monitor B:
Quotient = 800/600 = 1.333...
Monitor C:
Quotient = 1920/1080 = 1.777...
Monitor D:
Quotient = 1600/1200 = 1.333...
We can see that the one with a different aspect ratio is monitor C.
20 POINTS / I need this ASAP Solve the Problem
Answer:
n= 7.5
Step-by-step explanation:
So to get the answer to this equation, we have to create different equivalent equations, in the base equation so that in the end all bases are equivalent to solve for n.
Exact Form:
7/2
Decimal Form:
3.5
Mixed Number Form:
3 1/2
Hope this was helpful! Have a great day! :)
Answer:
n = 4
Step-by-step explanation:
Properties of Exponents
We are required to solve the following equation:
[tex]\displaystyle 7^7\cdot 7^5=\frac{(7^n)^4}{7^4}[/tex]
Operating:
[tex]\displaystyle 7^{7+5}=\frac{7^{4n}}{7^4}[/tex]
[tex]\displaystyle 7^{12}=7^{4n-4}[/tex]
Equating the exponents:
4n - 4 = 12
Adding 4:
4n = 16
Dividing by 4:
n = 4
Find the greatest common factor of 28 and 44.
Answer:
The GCF is 4
Step-by-step explanation:
Answer: 4
Step-by-step explanation:
look at a Multiplication chart find all factors and find the highest number for 28 and 44
The average length of the dragon used in the performance is 12 feet. The dragon is divided into 9 sections. How long is each sections
Answer:
do it urself sorry i letterely dont know
Step-by-step explanation:
help me plzzzzzzzzzzzzzzzz
Answer:
Step-by-step explanation:
f(8)=-3(8)²-6(8)+1
=-192-48+1
= -239
Find the value of x in the triangle shown below
Answer:
x = 55
Step-by-step explanation:
Since 2 sides of the triangle are congruent, both 5, then the triangle is isosceles and the 2 base angles are congruent, both x , then
x + x + 70 = 180 ← sum of 3 angles = 180°
2x + 70 = 180 ( subtract 70 from both sides )
2x = 110 ( divide both sides by 2 )
x = 55
Answer:
55.52
Step-by-step explanation:
By sine rule:
[tex] \frac{ \sin x \degree}{5} = \frac{ \sin 70 \degree}{5.7} \\ \\ \sin x \degree = \frac{ 5 \: \sin 70 \degree}{5.7} \\ \\ \sin x \degree = \frac{ 5 \: \sin 70 \degree}{5.7} \\ \\ x \degree = {sin}^{ - 1} ( \frac{ 5 \: \sin 70 \degree}{5.7}) \\ \\ x \degree = 55.516753493 \degree\\ \\ x = 55.52[/tex]
Without using a calculator, order the following numbers from least to greatest.
9
8
(Square root sign)72
write each number using words 6,240,018,000 and 900,019
Answer:
This will help you
Step-by-step explanation:
Can someone help me with this question please.
I’ll mark as a brainliest.
Answer:
A
Step-by-step explanation:
a²+ b² = c²
(3 ft)² + (9 ft)² = (H)²
Answer:
A
Step-by-step explanation:
in a right triangle, the longest side (across from the right angle) is the hypotenuse (denoted as 'c')
the legs are denoted as 'a' and 'b'
the Pythagorean Theorem allows you to find the missing side using this formula:
a² + b² = c²
Subtract 17x2y2z−14xyz from −18x2y2z+4xyz
Answer:
The correct answer should be 130xyz.
(if correct, please mark brainliest. :))
Step-by-step explanation:
In body paragraph 1, how many times is evidence (‘SAY”) cited? B) Same article? Yes or No
Answer:
Down below hope it helps :)
Step-by-step explanation:
The evidence "SAY" was only written once. It wasn't by the same article, the writer introduces two separate articles.
Kinda confused by this question but I think that's the answer.
What was the total amount of water in the tank before it was drained
450 gallons
510 gallons
560 gallons
570 gallons
Total amount of water before it was drained will be 510 gallons.
What is rate?"It is a ratio in which the two terms being compared have different units."
For given question,
We have been given a table for the number of gallons of water left in the tank after being drained for two amounts of time.
First we find the rate at which the water was drained from the tank.
[tex]r=\frac{450-330}{30-10}\\\\ r=\frac{120}{20}\\\\ r=6~gallons~per~minutes[/tex]
Let the amount of water in the tank before it was drained = 'x' gallons
And the initial time = 0
Using the rate formula,
[tex]r=\frac{x-450}{10-0}\\\\ 6=\frac{x-450}{10}\\\\ 60=x-450\\\\x=450+60\\\\x=510~gallons[/tex]
Therefore, total amount of water before it was drained will be 510 gallons.
Learn more about rate here:
https://brainly.com/question/23634231
#SPJ2
The distance Jane jogs in 20 minutes is 8 miles. At this rate, how many miles will he run in 60 minutes?
Answer: the answer is 24 miles
Step-by-step explanation:
Answer:
24 miles
Step-by-step explanation:
the ratio is 20:8
If we wanna find the ratio for 60 mins, you have to multiply both sides by three.
Then, we get 20/8 = 60/24
So, Jane jogged 24 miles in sixty minutes
Find x
16 ft
х
12 ft
Answer:
x = 20
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
x² = 12² + 16² = 144 + 256 = 400 ( take the square root of both sides )
x = [tex]\sqrt{400}[/tex] = 20
The hypotenuse of a right triangle measures 20 cm and one of its
legs measures 10 cm. Find the measure of the other leg. If
necessary, round to the nearest tenth.
I’m pretty sure 17.3 because of you do a^2+b^2=c^2 you get a^2= 10 square root 3 and that in a decimal is 17.3205
Answer:
8
Step-by-step explanation:
Behind my math class help pls
Answer:
Please check the explanation.
Step-by-step explanation:
Part a)
Given that the two parallel lines are crossed by a transversal line.
Given that
m∠2 = 2x + 54 and m∠6 = 6x - 11
Angle ∠2 and ∠6 are corresponding angles.
Corresponding angles are congruent.
Thus,
m∠2 = m∠6
2x + 54 = 6x - 11
flipe the equation
6x - 11 = 2x + 54
subtract 2x from both sides
6x - 2x - 11 = 2x - 2x + 54
4x - 11 = 54
adding 11 to both sides
4x - 11 + 11 = 54 + 11
4x = 65
dvide both sides by 4
4x/4 = 65/4
x = 16.2500 (round to 4 decimal places)
Part b)
We have already determined
x = 16.2500
Given
m∠2 = 2x + 54
substitute x = 16.2500 in the euation
= 2(16.2500) + 54
= 86.5°
As angle ∠2 and angle ∠1 lie on a straight line. Hence, the sum of their angles must be 180°.
i.e.
m∠1 + m∠2 = 180°
substituting m∠2 = 86.5° in the equation
m∠1 + 86.5° = 180°
subtracting 86.5° from both sides
m∠1 + 86.5° - 86.5° = 180° - 86.5°
m∠1 = 93.5°
Therefore, the measure of angle m∠1 is:
m∠1 = 93.5°The school store has 2400 pencils in stock and sells an average of 20 pencils per day. The manager reorders when the the number of pencils in stock is 600.
Answer:
90 days until the next restock
Step-by-step explanation:
2400 - 600 = 1800
1800/20 = 90 days
1). What must you do in order to solve the equation?
15 = m - 5
Answer:
20
Step-by-step explanation:
15 + 5= 20
Answer:
carry across the-5
minus turns into a +
looks like this
+5+15=m
5) If an item costs $500 and is on sale at 15% off and sales tax on the item is 8% find the cost after the
discount has been taken off and the tax has been added.
answer is 459 dollars
explanation: 15% of 500 is 75 that =425 + the tax which is 34 dollars so add them to get the answer 459