Answer:
4
Step-by-step explanation:
7/2+1/2=8/2
8/2=6=5/2
8/2-5/2=3/2
3/2=6
3/2=1.5
6/1.5=4
Please help me with questions 23-39
Answer:
23) 36·(3·1/4) = 36·(3/4) = 108/4 = 27
24) (4·2/7)·21 = (8/7)·21 = 168/7 = 24
25) 2(x+4) = 2x+8
26) (5+n)3 = 15+3n
27) (4-3m)8 = 32-24m
28) -3(2x-6) = -6x+18
29) 13r+5r = 18r
30) 3x³-2x²
31) 7m+7-5m = 2m+7
32) 5z²+3z+8z² = 3z+13z²
33) (2-4n)17 = 34-68n
34) 11(4d+6) = 44d+66
35) 7m+2m+5p+4m = 13m+5p
36) 3x+7(3x+4) = 3x+21x+28 = 24x+28
37) 4(fg+3g)+5g = 4fg+12g+5g = 4fg+17g
38) (5m)²+(m+5)²= 26m²+10m+25
39) 7(a²+b)-4(a²+b) = 3(a²+b) = 3a²+b
Jahnay is following this recipe to make cakes. Jahnay uses 600 g of sugar. How many cakes is Jahnay making?
Answer:
1124
Step-by-step explanation:
hmm yeah I'm not sure what to do about this but I'm sure
Jahnay is making 4 cakes when she uses 600 g of sugar.
What is the proportion?A mathematical assessment of two numbers is called a proportion. If two sets of provided numbers rise or fall in the same relation, then the ratios are said to be directly proportional to each other.
We have to determine the number of cakes when she uses 600 g of sugar.
Let the number of cakes would be x
According to the given question, we can write the proportion would be as:
150 g sugar : 1 cake = 600 g sugar : x cake
⇒ 150/1 = 600/x
Apply the cross-multiplication operation,
⇒ x = 600/150
Apply the division operation, and we get
⇒ x = 4
Therefore, Jahnay is making 4 cakes.
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The question seems to be incomplete the missing part has been attached below
Help plz:))) I’ll mark u brainliest
ASAP!!!
Answer:
x = 5Step-by-step explanation:
As we know that
The exterior angle of a triangle is the result of the sum of the measures of the two non-adjacent interior angles.In other words,
An exterior angle is equal to the sum of the two angles not right next to it.so from the diagram,
(11x+5) is the exterior angle30° and (-5+7x) are the two non-adjacent interior angles.so
[tex]11x+5\:=\:30+\:\left(-5+7x\right)[/tex]
[tex]11x+5=30-5+7x[/tex]
[tex]11x=7x+20[/tex]
subtract 7 from both sides
[tex]11x-7x=7x+20-7x[/tex]
[tex]4x=20[/tex]
Divide both sides by 4
[tex]\frac{4x}{4}=\frac{20}{4}[/tex]
[tex]x=5[/tex]
Therefore, x = 5
Hello! Did anyone took the isat ( International student admission test) ?? Please let me know !
Answer:
No, I haven't taken the isat.
Step-by-step explanation:
Answer:
No, what is it for?
Step-by-step explanation:
Geometry, i think my answer is wrong
Answer:
23°
Step-by-step explanation:
mABD is just the angle of B
9x-22 = 6x -7
3x -22 = -7
3x = 15
x = 5
9(5) -22
45-22
23
URGENT!!! my question is in the picture brainliest, extra points, i have other questions on my page please answer those too
Answer: heyo my friend, missed ya <3
Step-by-step explanation:
A bouquet of flowers has 12 roses and 15 carnations. A ratio is a relationship between two quantities. Using the numbers in the problem, select all answers that express the ratio of roses to carnations.
Answer:
12 : 15, 4 : 5
Step-by-step explanation:
find common denominator, like 3.
Select all the expressions that have a value of 180 when b = 4.
A 87b−179+957÷87
B 33b12
C b2+120
D 51b−24
E 11b+187−2,756÷13
The expression 51b-24 has a value of 180 when b = 4. Therefore, option D is correct.
We need to select all the expressions that have a value of 180 when b = 4.
What is the expression?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.
Now, substitute b=4 in option A.
That is 87b−179+957÷87=87×4−179+957÷87=12.94.
Substitute b=4 in option B.
33b12=33×4×12=1584
Substitute b=4 in option C.
b²+120=4²+120=136
Substitute b=4 in option D.
51b-24=51×4-24=204-24=180
Substitute b=4 in option E.
11b+187−2,756÷13=11×4+187−2,756÷13=-194.23
Therefore, the expression 51b-24 has a value of 180 when b = 4.
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- 5.2-(-3.1) + 5.2
I
Answer:
7.3 I think
Step-by-step explanation:
A person has gotten a new job with a much higher salary. Even though he'll be
making more money, he wants to start saving at a much higher rate. As a
result, he plans to spend even less money this year than he did last year.
Which statement best describes the tax situation this person will likely face in
the next year?
A. He will pay more in both property tax and income tax.
B. He will pay more in income tax but less in sales tax.
C. He will pay more in sales tax but less in income tax.
O D. He will pay more in both income tax and sales tax.
Answer:
B
Step-by-step explanation:
because he earns more, he will have to pay more tax. however since he spends less, he will pay less sales tax.
The statement that best describes the tax situation with this new job is;
Option B; He will pay more in income tax but less in sales tax.
He has gotten a job with a higher salary. Since tax comes at a fixed percentage, it implies that he will be paying more in tax when compared to the previous job.Let us look at the options;
Option A; This is not correct because property tax only increases when the value of your home increases and has nothing to do with an increase in salary.Option B; This option is correct because an increase in income leads to an increase in income tax while sales tax will reduce because he wants to spend less and as such will accrue lesser sales taxes.Option C; This is the opposite of Option B and as such it is not correct.Option D; He will pay more income tax as explained in option B but sales tax will reduce and not increase. Thus the statement is wrong.Read more at; https://brainly.com/question/19501172
Which describes the transformation of the triangle?
a. reflection over the x-axis
b. reflection over the y-axis
c. rotation 90º CW about the origin
d. rotation 180º CW about the origin
Answer: b. Reflection over the y axis.
Step-by-step explanation: The vertical line is the y axis, and the triangle is flipped over it.
Please help me with questions 3-12 but I have number 4 done ✅
Answer:
3. 55
6. 16m
8. 7m + 10
Step-by-step explanation:
Thats all i could do im not that smart
A basketball star earned $4,000,000 last year. He played in 64 games for an average of 42 minutes per game. Find the rate in dollars per minute of playing time.
Answer:
1433.09
Step-by-step explanation:
4,000,000 divided by 64 = 62,500
62,500 divided by 42 1,433.09
He makes 1433.09 per minute
PLZZZ HELPPP ME!!!
A road map shows the intersections of roads. There are three parallel roads cut by
a fourth road that acts like a transversal.
What is tru
Choose one
If ZEBC mea
ZHEF has th
The sum of th
Answer:
4
Step-by-step explanation:
Find the equation of the line that passes through the points:
(3, 4) and (0, -5)
Answer:
the answer would be 3
Step-by-step explanation: Brainliest Please
because you would do the distance formula to find the distance of the line between the points so the formula is y2-y1
_____
x2-x1
please help me I will mark BRAINLIEST and I will give you a rating of 5 stars
Answer:
141 = 145 184-188
Step-by-step explanation:
to find the pattern you would have to see what each of them have in common
All of them 4 was added to the answer
I subtracted both numbers and got 4 then i decided to add 4 to get the other to get the pattern
I was saving
3
of a chocolate cake to eat after dinner. My
little brother snuck down and ate
of MY chocolate cake. How
much did my brother eat?
Answer:
I'm guessing 1/3 but there is like missing pieces to the problem.
if a watch cost $40 and you pay 6.5% sales tax, how much will the tax be
Answer:
$2.60
Step-by-step explanation:
6.5/100 x 40 = 0.065 x 40 = 2.6
= $2.60
You make $0.50 for every newspaper you sell during the week. Last week you made $30.50 How many newspapers did you sell.
Answer:
You sold 61 news papers.
Step-by-step explanation:
If each paper is $0.50, you multiply it by 61, you will get $30.50
Answer:
Step-by-step explanation:
$0.50 for every newspaper sooo.... 50cts + 50 cts is $1.00
50 .....1.00.....1.50.....2.00....2.50...3.00...3.50...4.00...4.50...5.00...5.50...6.00..
you know where i'm going with this... count by 50s and write them down and then count. it may be a lot but the grades matter. good luck.
Todd has $50 to spend On a video game the game he wants costs $30 if he buys one game he gets a second game for half price how much money will he have left if he purchases two games?
Answer:
Answer: He has $20 left to spend.
Step-by-step explanation:
Your welcome.
Im so confused pls help
Step-by-step explanation:
[tex] f(x) \: = \: \frac{4}{5} - \frac{5}{x + 1} [/tex]
[tex]f(x) \: \: = \: \: \frac{(4)(x + 1) - 5(5)}{5x + 5} [/tex]
[tex]f(x) \: \: = \: \: \frac{4x + 4 - 25}{5x + 5} [/tex]
[tex]f(x) \: \: = \: \: \frac{4x - 21}{5x + 5} [/tex]
f(x) = g(x)
[tex] \frac{4x - 21}{5x + 5} = \frac{2}{5x + 5} [/tex]
4x - 21 = 2
x = (21 + 2)/4
x = 5.75
What is the solution set for 9x^2-25=0?
Answer:
A
Step-by-step explanation:
9x^2-25=0
x= 5/3 and -5/3
By solving quadratic equation [tex]9x^2-25=0[/tex] we got solution set as [tex]\{\frac{-5}{4}, \frac{5}{4} \}[/tex]
What is quadratic equation ?Any equation that can be written in form as [tex]ax^{2}+bx+c=0[/tex] , where x is variable and a, b and c are any real numbers and a ≠ 0 is called quadratic equation .
given quadratic equation :
[tex]9x^2-25=0\\\\[/tex]
Adding 25 both sides
[tex]9x^2-25+25=0+25\\\\\Rightarrow 9x^2=25[/tex]
Dividing by 9 on both sides
[tex]\frac{9x^2}{9}=\frac{25}{9}\\\\x^2= \frac{25}{9}[/tex]
Taking square root both sides
[tex]x= \pm \sqrt(\frac{25}{9})[/tex]
[tex]x= \pm \frac{5}{4}[/tex]
[tex]x= \{\frac{-5}{4}, \frac{5}{4} \}[/tex]
By solving quadratic equation [tex]9x^2-25=0[/tex] we got solution set as [tex]\{\frac{-5}{4}, \frac{5}{4} \}[/tex]
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Question
Find and record a series of rigid transformations that will map your copied triangle to your original triangle. In the table, note the angles of
rotation, lines of reflection, and distances moved. (Although the table provides space to record five steps, you might map your triangle in fewer
steps.)
1
2
3
4
5
Answer:
1. Rotate DEF 90 degrees clockwise about point D (8,1).
2. Translate DEF 8 units up.
3. Reflect DEF about the line x = 6.5.
Step-by-step explanation:
Sample answer for PLATO!
First Rotate DEF 90 degrees clockwise about point D (8,1). then Translate DEF 8 units up. and Reflect DEF about the line x = 6.5.
What is Rigid transformation?Rigid transformation implies that the side lengths and the angle measures of the triangles are preserved when mapping them.
From the question, we have the following as;
The transformation is rigid
The triangles can be mapped onto one another
If the above statement is true, then the triangles are not only similar, but they are also congruent.
This is the angle measures and the side lengths of both triangles would be the same.
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Cuáles son los métodos de integración
Answer:
Spanish:
Los diferentes métodos de integración incluyen:
Integración por sustitución.
Integración por partes.
Integración mediante identidades trigonométricas.
Integración de alguna función particular.
Integración por fracción parcial
Step-by-step explanation:
English:
The different methods of integration include:
Integration by Substitution.
Integration by Parts.
Integration Using Trigonometric Identities.
Integration of Some particular function.
Integration by Partial Fraction.
80% of the doctors surveyed believe exercising 30 minutes a day help you live a healthier life. If 240 doctors believe in exercising, how many were surveyed.
Answer:
300 is what I got
Step-by-step explanation:
A school had 620 students win academic success awards in 2014. In 2015, the school had 527 students win academic success awards. What is the percent decrease in the amount of students receiving academic success awards?
A.15%
B.85%
C.93%
D.19%
How to simplify 7 - 9x -15 + 12x into an expression
3x - 8
bdjwysksuxvsjahajhx
Answer:
Simplified is 3x - 8
Step-by-step explanation:
First, put the like terms together, so rearrange that equation to 12x - 9x - 15 + 7. Then from there you subtract 9x from 12x which is 2x and add 7 to negative 15, which is -8.
Maria donates a fixed amount, a, to a charity each month. If she donates $300 in 12 months, what is the equation for a? A. a + 300 = 12 B. a × 300 = 12 C. a × 12 = 300 D. a + 12 = 300 E. a + 32 = 100
Answer:
a times 12=300
Step-by-step explanation:
donated each month a should be 25. $25 times 12 equals 300
Answer:
C.
a × 12 = 300
Step-by-step explanation:
Mrs. Hernandez was helping her students with their bank accounts. The ratio of the amount of the student with the most money to the student with the least money was 4:1. If the student with the most money has $128, how much does the student with the least money have
Answer: $32
Step-by-step explanation:
From the information given in the question, we are told that the ratio of the amount of the student with the most money to the student with the least money was 4:1. If the student with the most money has $128.
This shows that the student with most money has quadruple that is 4× the student with the least money. Therefore, the student will least money will have:
= $128/4
= $32
Three classes have the same number of students. The teachers compared attendance on one Friday. Mr. Lopez had 92.5% of his students in the class. Mrs. Foster had 19/20 of her students in the class. In Ms. Kelly’s class, 0.9 of the students were present. Which teacher had the most students in the class that Friday?
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Suppose the number of students in one of the classes is :
[tex]x[/tex]
So ;
[tex]Mr.Lopez \: \: had \: \: \frac{92.5}{100}x \\ [/tex]
_________________________________
[tex]Mrs.Foster \: \: had \: \: \frac{19}{20} x \\ [/tex]
So :
[tex]Mrs.Foster \: \: had \: \: \frac{19 \times 5}{20 \times 5} x \\ [/tex]
[tex]Mrs.Foster \: \: had \: \: \frac{95}{100}x \\ [/tex]
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[tex]Ms.Kelly \: \: had \: \: 0.9x[/tex]
[tex]Ms.Kelly \: \: had \: \: \frac{9}{10} x \\ [/tex]
[tex]Ms.Kelly \: \: had \: \: \frac{90}{100} x \\ [/tex]
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Compare :
[tex] \frac{95}{100} x > \frac{92.5}{100} x > \frac{90}{100} x \\ [/tex]
Thus :
[tex]Mrs.Foster’s \: \: class \: > \: Mr.Lopez’s \: \: class \: > \: Ms.Kelly’s \: \: class \\ [/tex]
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