please help me !! i do not understand
Answer:
9
Step-by-step explanation:
Which of the following is a step in simplifying the expression
,5
x-55
о
-15
Х
A cell phone plan charges $39.95 a month plus 15 cents per text message sent and 15 cents per message received. Using s to represent the number of text messages sent in one month and r to represent the number of text messages received in one month, the following equation can be used to calculate the total monthly cost, c.
C=39.95+.15(s+r)
If it is known that the total monthly cost is $53.45 and 63 text messages were received, solve for s, the total number of text messages sent.
Answer:
The total number of text messages sent was 27.
Step-by-step explanation:
The monthly cost of the cell phone plan, in function of the number of text messages sent(s) and the number of messages received(r), is given by:
[tex]C = 39.95 + 0.15(s + r)[/tex]
In this question, we have that:
[tex]C = 53.45, r = 63[/tex]
We put this into the equation to find the value of s. So
[tex]C = 39.95 + 0.15(s + r)[/tex]
[tex]53.45 = 39.95 + 0.15(s + 63)[/tex]
[tex]0.15s + 9.45 = 13.50[/tex]
[tex]s = \frac{13.50 - 9.45}{0.15}[/tex]
[tex]s = 27[/tex]
The total number of text messages sent was 27.
Approximately 4 out of 5 students in Mrs.
Haynes 7th grade math class have cell
phones. If there are 365 students in the 7th
grade, how many would you expect to have
a cell phone?
Answer:
292
Step-by-step explanation:
take 365x 4/5=292.........
The number of students having a cell phone if Approximately 4 out of 5 students in Mrs. Haynes 7th grade math class have cell phones, and there are 365 students in the 7th, is 292.
What is multiplication?The fundamental concept of making the same number of additions repeatedly is represented by the action of multiplication.
The results of multiplying two or more integers are known as the products, and the factors that are used in the multiplication are referred to as the factors.
Given:
Approximately 4 out of 5 students in Mrs. Haynes 7th grade math class have cell phones, and there are 365 students in the 7th,
Calculate the number of students having a cell phone as shown below,
The number of students having a cell phone = 4 / 5 of 365
The number of students having a cell phone = 4 / 5 × 365
The number of students having a cell phone = 4 × 73
The number of students having a cell phone = 292
Thus, The number of students having a cell phone is 292.
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Which of the following statements is supported by Chargaff's rule about the composition of DNA?
A.
DNA is a single stranded nucleic acid that contains uracil.
B. The number of adenines in a strand of DNA is equal to the number of thymines.
C. The "steps" of the DNA ladder are made of sugar and phosphates.
FREEBEE POINTSSSSSSSSSSSSSSSSSS
Which situation leads to a unit cost of $4 per hat?
A.
4 hats for $24
B.
12 hats for $48
C.
$6 paid for 2 hats
D.
$4 paid for 4 hats
Answer:
I think that the answer is B.
Step-by-step explanation:
Hope this helps :)
The situation which leads to a unit cost of $4 per hat is 12 hats for $48. Hence, option B is correct.
What is an arithmetic operation?The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or more numbers. Included in them is the study of integers, especially the order of operations, which is important for all other aspects of mathematics, notably algebra, information management, and geometry.
As per the data given in the question,
Cost of one hat = $4
Cost of 12 hat = $4 × 12 = $48.
Therefore, $48 is the price of 12 hats.
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Find the value of x.
B
92
A
1019
68
D
X=
Answer:
Step-by-step explanation:
Given the figure below , find the values of x and z .
Answer:
6x+36=11x-9
11x-6x=36+9
5x=45
X=45
now,
45+Z=180
Z=180-45
Therefore,Z=135
6x+36=11x-9
or,11x-6x=36+9
or,5x=44
:X=35
We know that,
45+Z=180
or,Z=180-45
:Z=135
3 3/4 +2 1/8 = ?
n n
50 POINTS!!!!!! PLEASE HELP FAST
What is the radical form of the expression 423?
Answer:
A
Step-by-step explanation:
A fraction exponent can be represented using a radical. The base number is the number in the radical. The numerator of the fraction is the exponent inside the radical. The denominator is the type of radical.
To write an exponent in radical form , the denominator, or index goes in front of the radical, and the numerator goes inside of the radical. We raise the base to the power of the numerator
4 2/3
∛4².
Hope this helps :)
9. What is the degree of the polynomial (x - 1)(x + 2)(2x - 3)?
A. 4
B. 3
C. 2
(explain please)
Answer:
coefficient of the term of degree 4 in this polynomial is 3
Step-by-step explanation:
Is the following equation proportional or non-proportional?
y = .2x
Answer:
It is a non -proportional equation
A company rents out 18 food booths and 21 game booths at the county fair. The fee for a food booth is $150 plus $8 per day. The fee for a game booth is $65 plus $6 per day. The fair lasts for d days, and all the booths are rented for the entire time. Enter a simplified expression for the amount, in dollars, that the company is paid.
Answer:
the expression is 21+18d
Step-by-step explanation:
Answer:
The answer is t(2844 + 1491) or t(4335)
Step-by-step explanation:
18 x 150 = 2700
18 x 8 = 144
2700 + 144 = $2844
21 x 65 = 1365
21 x 6 = 126
126 + 1365 = 1491
t = ? <--- t stays the same
1491 + 2844 = 4335
t(4225)
4
Maurice et son frère achètent un film qui coûte 26$. Maurice débourse 4 fois plus d'argent que son frère. Quelle est la
part payée par chacun des frères?
Answer:
Je ne parle pas français donc j'utilise un traducteur. J'espère qu'il n'y a pas trop d'erreurs. Le frère de Maurice a dépensé 5,20 $ et Maurice 20,80 $
Step-by-step explanation:
PLS HELP ASAP!!!!!!!!!!!
Jude graphed the inequality s
Is his graph correct? Explain why or why not.
Answer:
No, Jude’s graph is incorrect. The inequality symbol is “less than,” so -9 is not included. He should have used an open circle on -9.
^ sample response
sorry that im late on this, but i hope it helps anyone else : )
Answer:
No , Jude’s graph is incorrect . The inequality symbol is “ less than , ” so - 9 is not included . He should have used an open circle on - 9 .
Step-by-step explanation:
sample response on EDGE
3. Graph each line y, y1, y2, y3, and y4 and record the data in the table below.
(Graph all five lines together so that you can compare them)
It’s question 3
Use the given minimum and maximum data entries, and the number of classes, to find the class width, the lower class limits, and the upper class limits. minimum=7, maximum = 83, 6 classes
Answer:
-24+6=
Step-by-step explanation:
select the correct rule, then solve the equation
Complete Question
Use the given minimum and maximum data entries, and the number of classes, to find the class width, the lower class limits, and the upper class limits. minimum=7, maximum = 83, 6 classes
What is the class width? (whole number)
We have that the Class Width is given as
7-19
20-32
33-45
46-58
59-71
72-84
Generally
[tex]Class\ width =\frac{83-7}{6}[/tex]
Class width =12.67
Class width =13
Hence
Lower class limit is
7,7+13=20...33,46,59,72
Upper class limit is
7+13-1=19,32,45,58,71,84
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Find the percent increase from 85 to 125
Answer: 47.06
Step-by-step explanation: math
Henry went clothes shopping and bought 3 pairs of shorts for $22.99 each, 2
shirts for $32.99 each and one pair of shoes for $54.99. What is the most
reasonable estimate of the total amount he spent on all the clothing?
A. $135
B. $184
C. $190
D. $223
Answer:
C
Step-by-step explanation:
what is 5x^2y^-3 simplified?
Answer:
(5x^2)/(y^3)
Step-by-step explanation:
Answer:
(5x^2)/(y^3)
Step-by-step explanation:
Please help
x2 + 14x + 37 = 0
Answer:
x = −37/16
This is the value of x which completes the equation properly, unless you mean x^2 instead of x2.
easy i neeed help!!!!!!
Answer:
For #3 it is 7/56
Step-by-step explanation:
Multiply 7/8 by 7!
A square has a perimeter of 20 cm. What is the length of each side
Answer:
80cm
Step-by-step explanation:
20×20×20×20
hope this helped
Kim rols three 6 sided dice.
The product of her numbers is 60
a) What numbers could she have rolled?
Answer:
2,5,6
Step-by-step explanation:
2 * 5 * 6 = 60
Kim rolls three 6 sided dice. The product of her numbers is 60. So, the numbers are 2, 5, and 6 and this can be determined by using arithmetic operations.
Given :
Kim rolls three 6 sided dice.The product of her numbers is 60.The following steps can be used to determine the number could Kim has rolled:
Step 1 - Let the three numbers be a,b, and c.
Step 2 - Given that the product of these numbers is 60.
[tex]a\times b \times c = 60[/tex]
Step 3 - So, the possible values of a, b, and c are:
a = 2
b = 5
c = 6
Step 4 - Check the product of a, b, and c if it is 60 then it is correct.
[tex]2\times 5\times 6 = 60[/tex]
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(8x-17)(5x+19)
Find the converse and x
[tex](8x-17)(5x+19)\\40x^{2}+152x-85x-323\\ 40x^{2}+67x-323[/tex]
Helppppppppppppppp mee pls
Answer:
650 beats
Step-by-step explanation:
Answer:
the answer is 650
Step-by-step explanation:
cuz if u 26x25=650
PLS HURRY I ll mark brainliest
Describe each as below sea level, at sea level, or above sea level.
Death Valley sits at an elevation of –282 feet.
The elevation of Mount Whitney is 14,494 feet.
The elevation of the Singapore Strait is 0 feet.
Answer:
Step-by-step explanation:death below ocean
Mount above
Singapore above
Step-by-step explanation:
A negative altitude is below sea level.
A positive altitude is above sea level.
An elevation of zero is at sea level.
Death Valley sits at an elevation of –282 feet. negative: below sea level
The elevation of Mount Whitney is 14,494 feet. positive: above sea level
The elevation of the Singapore Strait is 0 feet. zero: at sea level
A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). The one-time fixed costs will total $53,533. The variable costs will be $12.50 per book. The publisher will sell the finished product to bookstores at a price of $24.25 per book. How many books must the publisher produce and sell so that the production costs will equal the money from sales?
9514 1404 393
Answer:
4,556
Step-by-step explanation:
Revenue from the sale of n books is ...
R = 24.25n
Production cost for n books is ...
C = 53533 +12.50n
These are equal for ...
24.25n = 53533 +12.50n
11.75n = 53533
n = 53533/11.75 = 4556
The publisher must produce 4556 books so sales will equal production cost.
3(2ax-10)=24x+5b
work out the values of a and b
Answer:
a=4
b=-6
Step-by-step explanation:
3(2ax-10)=24x+5b
6ax - 30 = 24x + 5b
6a = 24
a = 4
5b = -30
b = -6
check: 3(2*4*x - 10) = 24x - 30 = 24x + 5 * (-6) = 24x - 30
-X - 8x + 7
I forgot how to do this
Answer:
I need to see an equal sign (=) to be able to solve
Step-by-step explanation:
this equation is invalid