Answer:
Hi
The answer is 90%
Step-by-step explanation:
45/50 x 100=90
Percent of problems scored by Oscar is [tex]\boldsymbol{ 90\%}[/tex]
Define percentage.A percentage is a figure or ratio that is stated as a percentage of one hundred. The percent symbol, "[tex]\boldsymbol{\%}[/tex] ," is frequently then used represent it.
Score of Oscar in a test [tex]=\frac{45}{50}[/tex]
Therefore,
Percent of problems scored by Oscar [tex]=\boldsymbol{\frac{45}{50}\times 100 }[/tex]
[tex]=\boldsymbol{ 90\%}[/tex]
Find out more information about percentage here:
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Help me plssss hurry!!!!Which expressions are equivalent to 6+(-4) - 5?
Choose 2 answers:
А. -(-6+4) – 5
B. 6-4-(-5)
C. 6-(4+5)
D. 6+4-5
E. -(-6) + (-4) – (-5)
Answer:
a)
c)
...................
Which terms in the expression
5c + 8 + 12c are like terms
Answer:
Step-by-step explanation:
like terms are 5c and 12c because both have the same variable, c
Answer:
The terms 5c and 12c are like terms. They can both be added.
Step-by-step explanation:
It could be any number the variable has to stay the same and if there is none, it can’t be paired. Also watch out for problems like 12c + 5c^2. THey don’t have the same variable due to th ^2
A camera has a listed price of $699.98 before tax. If the sales tax is 6.25%, find the total cost of the camera with sales tax included.
Answer: 742.68
Step-by-step explanation:
Solve.
6x−13=2x+7
2
3
5
6
Answer: x = 5
Step-by-step explanation:To solve this you first need to collect the like terms 6x-2x=7+3. Add those 4x=20. After that you need to divide both sides. Then you will get you solution.
Answer:
Step-by-step explanation:
6x−13=2x+7
Inverse operation:
6x into a negative then subtract it by 2x
2x - 6x = -4
Change 7 into a negative then subtract it by -13
-13 - 7 = -20
-20 = -4x
Divide:
-20 = -4x
_______
-4 -4
-20/-4 = 5
Answer:
5 = x or x = 5
Please help me answer this question!!!!
9514 1404 393
Answer:
y = 4x +3
Step-by-step explanation:
The slope formula can be used to find the slope:
m = (y2 -y1)/(x2 -x1)
Using the first two lines of the table, we find the slope to be ...
m = (11 -7)/(2 -1) = 4/1 = 4
__
The y-intercept can be found from the relation ...
b = y -mx
Using the slope we found, and the first line of the table, we find the intercept to be ...
b = 7 -4(1) = 3
__
Then the equation is ...
y = mx +b . . . . . . slope-intercept form of the equation for a line
y = 4x +3
3c-5-4c=-15 solve for c
Answer:
c=10
Step-by-step explanation:
First combine like terms by doing 3c-4c to get -1c-5=-15. Then add 5 to both sides to get -1c=-10. Then divide by -1 on both sides to get c = 10
What are arithmetic sequences
help me please! it’s due monday:)
Answer:
Ground level would be 0cm
Step-by-step explanation:
Since the ground level is the starting point or the base it would be considered 0cm.
find the least common multiple of 7,3,2
- least common multiple of 7, 3, 2 = 42
Answer:
42
Step-by-step explanation:
These are all coprime, so the lcm is 7 * 3 * 2 = 21 * 2 = 42
5 star, thanks, and brainliest if helpful!
PLEASEE HELPP
Which system of equations would be best solved using Substitution?
1. -2x + 5y = -1
2x + 5y = 11
2. 2x = 10
y=-3
3. 3x + 7y= 21
4x – 3y = -9
4. y=2/3x+5
2x - 6y= -42
Step-by-step explanation:
1. The best way to solve this one would be elimination
Both the equations have the same term, 5y
Since neither variable is isolated, it wouldn't be easy to use the method of substitution
2. Both the equations only have x or y
SInce neither of the equations has both the variables, substitution is impossible
3. Same as 1, just that you would need to multiple one of the equations by a certain number to create equal terms to make elimination possible
4. It's perfect!!! The y is isolated and it would be simple to just substitute the first equation into the 2nd (I hope you got what I meant)
4, is the correct answer
I hope this helps!!!
Answer:
4. y=2/3x+5
2x - 6y= -42
Step-by-step explanation:
Please help ASAP!!!!
Answer:
it's answer is y = + √x - 1 Yes
Step-by-step explanation:
Hope it will help :)❤
right now need answer now ok please do not do wrong
Answer: -7
Step-by-step explanation:
Answer:
-7
Step-by-step explanation:
Potato salad can be purchased at the grocery store for $2.58 per pound. If Michael wants to buy 2.5 pounds of potato salad, how much will it cost?
Answer: $6.45
Step-by-step explanation: Since 1 pound is $2.58, and we need to find out how much is 2.5 pounds, we can just multiply 2.58 by 2.5. Should be simple for you. Hope this helps. :)
cost of 105 envelopes is rupees 35 how many years can be purchased for rupees 10
Answer:
Step-by-step explanation:
in 1rupee, (105/35) envelope can be purchased
then
in 10 rupees, (105*10)/35 envelopes can be purchased
in 10 rupees, 30 envelopes can be purchased
i hope this will help you
Which expression is equivalent to
13c + 9f - 7f + 3c + 15 - 2
Expression 1: 16e + 2f + 13
Expression 2: 28e + 2f + 1
Expression 3: 22e + 8f + 1
Expression 4: 6e + 12f + 13
Answer:Sorry but none where c there e but no c .
But it would be 16c +2f +13 .
Step-by-step explanation:you need to combine like terms
which are 13c +3c =16c and 9f- 7f=2f and 15-2 =13 .
Hope it helps .
Use the factor theorem to determine if the given binomial is a factor of f (x).
f(x) = x4 + 8x3 + 11x2 -11x + 3; (x + 3)
Answer:
The binomial is a factor
Step-by-step explanation:
In order to show that x+3 is a factor of the polynomial, then;
f(a) = 0
Get a by equating x+3 to zero
x+3 = 0
x = -3
Get f(-3)
f(-3) = (-3)^4 + 8(-3)^3 + 11(-3)^2 -11(-3) + 3
f(-3) = 81 - 216 + 99 + 33 + 3
f(-3) = 216-216
f(-3) = 0
Since the remainder of the polynomial when divided by x+3 is zero, this shows that x+3 is a factor of the given polynomial
2 • (3 • 7) and (2 • 3) • 7 = ?
Answer:
First one is 42 and the second one is 48.
Step-by-step explanation:
Start with parentheses. I'll use the first one as an example. 3 x 7 is 21. Now that the parentheses are done, multiply it by whatever's left. 21 x 2, that's 42. For the other one, 2 x 3 is 6, x 7, is 48. Have a good day :)
Which expression has the smallest value and why?
a. |-19|
b. - |-34|
C. - |11|
d. | 47 |
Answer:
- 11 i think
Step-by-step explanation:
Im not aure but let ssee if someone will help
help asap plspls !! :)
Solve
1+−=0
2 − 2 = 4
Answer:
Both questions are inaccurate.
Step-by-step explanation:
You cannot have a +- next to each other without a number on the right of it.
Also 2-2=0 not 4.
Solve the proportion: 80/100=68/m
The answer is 6800 = 80m
please help me with this question ( im going to fail my classes-)
Answer:
u will not fail i promise
Step-by-step explanation:
and the answer is the first becz we have to see the difference in arthimatic terms
Answer:
product
Step-by-step explanation: product means solution of two thingies being multiplied with each other i think
on the first of january 2014, carol invested some money in a bank account. The account pays 2.5% interest per year. On the first of january 2015 carol withdrew £1000 from the account. On the first of january 2016, she had £23517.60 in the account. Work out how much carol originally invested in the account
Answer: £23,360
Step-by-step explanation:
You can use algebra to solve this.
Assume that the original investment is x.
In the beginning of 2015 the balance had increased by 2.5% which is denoted as:
= 1.025x
Carol then withdrew a thousand:
= 1.025x - 1,000
This value then increased by 2.5% again by the beginning of 2016:
= 1.025 * (1.025x - 1,000)
Relevant expression therefore is:
1.025 *(1.025x - 1,000) = 23,517.60
1.025x - 1,000 = 23,517.60/1.025
1.025x = 22,944 + 1,000
x = 23,944/1.025
x = £23,360
guys pretty pls help :3
Answer:
See description.
Step-by-step explanation:
The first way you could use 60/5 is you could say the 60 students need to be divided into 5 buses. The second way you could use 60/5 is you could do 60 students divided into five groups of areas.
Hello please help me solve this :) will give braisnlt
Answer:
1.E
2.H
3.F
4.D
5.A
6.G
7.B
8.C
Step-by-step explanation:
what is 1000 − a=400
please answer.
Answer:
1000-a=400
a = 400 - 1000
a= -600
Answer:
1000-a=400
Step-by-step explanation:
or, -a=400-1000
or,-a= -600
therefore - and - cutting then
a=600
any help please for my class
Answer:
Step-by-step explanation:
do 700/20
700/20 = $35 each
hope this helps <3
Answer:
35
Step-by-step explanation:
700/20 = answer
20 tickets: $700
divide by 20 on both sides to get price of one ticket/ unit price
1 ticket: $700/20
1 ticket: 35!
one number is reciprocal to another and Arithmetic mean between them is 5/4 find them
Answer:
2, 1/2
Step-by-step explanation:
Arithmetic mean of two numbers is given as
[tex]n=\frac{a+b}{2}[/tex]
Here a=x and b=1/x
[tex]n=\frac{x+1/x}{2}[/tex]
[tex]\frac{5}{4} =\frac{x^{2}+1}{2x}[/tex]
[tex]\frac{5}{2}x=x^{2} +1\\ x^{2}-\frac{5}{2}x+1=0[/tex]
[tex]x=2, \frac{1}{2}[/tex]
Hence the numbers are 1/2 and 2.
What is a reciprocal?If x is any real number, then the reciprocal of this number will be 1/x. For example, the reciprocal of 5 is 1 divided by 8, i.e. 1/5.
Step by Step Explanation:Given, one number is reciprocal to another.
So if we choose the first number to be x , the the other number becomes its reciprocal i.e. 1/x.
Now, it is given that the arithmetic mean of these two numbers is 5/4.
So using formula for arithmetic mean ,
Mean = Sum of Observations / No. of observations
[tex]\frac{5}{4} =\frac{x+\frac{1}{x}}{2} \\\frac{5*2}{4}= \frac{x^{2} +1}{x} \\\frac{5}{2} =\frac{x^{2}+1}{x} \\[/tex]
On cross Multiplication and Factorization, we get:
[tex]5x=2x^{2}+2\\2x^{2} -5x+2=0\\2x^{2} -4x-x+2=0\\2x(x-2)-1(x-2)=0\\(2x-1)(x-2)=0\\2x-1=0 , x=1/2\\x-2=0 , x=2[/tex]
So , when x=1/2 , then 1/x=2
and when x=1/2 , then x=2
Hence, the numbers are 2 and 1/2 .
Learn more about reciprocals at :
https://brainly.com/question/2534506
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Someone plzzz helppp? I need this it’s 8th grade mathh
can u pls help me with this question asap
Answer:
90
Step-by-step explanation:
Basically 90 precent of 100 is 90