Answer:
4 questions
Step-by-step explanation:
To find a percentage of a number, you move the decimal mark all the way to the left.
87.5% becomes 0.875
Next you multiply 32 by 0.875 to find the percentage of questions that are completed
32 x 0.875 = 28
28 out of 32 questions have been solved, so now you subtract 28 from 32
32 - 28= 4
There are 4 questions to complete
Spencer is 10 years old. His age is two years less than three times his sister's age. How old is Spencer's sister?
The age of Spencer's sister is 4 years old.
What is an Equation?An equation is a mathematical statement that shows that two mathematical expressions are equal.
Given that, Spencer is 10 years old. His age is two years less than three times his sister's age.
Let the age of Spencer's sister be x
According to the question,
3x - 2 = 10
3x = 10 +2
3x = 12
x = 12/3
x = 4
Hence, The age of Spencer's sister is 4 years old.
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As part of a science experiment, Sam recorded the four values shown in the table, but one of them got smudged on his paper. He remembers that the sum of the trials was −1. What was the value that was smudged?
Trials
−9
12
(smudged)
−8
A) 2
B) −2
C) −4
D) 4
PLEASE HELP IM GONNA FAIL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :(
Answer:
D) 4
Step-by-step explanation:
−9 + 12 + (unknown) + −8 = −1
Start by going through and testing each option
−9 + 12 + 2 + −8 =
3 + 2 + −8 =
5 + −8 =
−3
−3 ≠ −1
A) 2 is not possible.
−9 + 12 + −2 + −8 =
3 + −2 + −8 =
1 + −8 =
−7
−7 ≠ −1
B) −2 is not possible.
−9 + 12 + −4 + −8 =
3 + −4 + −8 =
−1 + −8 =
−9
−9 ≠ −1
C) −4 is not possible.
From this, D is looking like the answer. But to be sure, test it.
−9 + 12 + 4 + −8 =
3 + 4 + −8 =
7 + −8 =
−1
−1 = −1
D) 4 is the answer.
A birthday celebration meal is $47.40 including tax, but not the tip. Find the total cost if a 15% tip is added to the cost of the meal.
th
The total cost is $
Answer:
$54.51
Step-by-step explanation:
Solve the inequality 3x + 4 < 22
Answer:
3х<18
х<6
хє(-infinity ;6);
Answer:
x<6
Step-by-step explanation:
3x+4<22
First, subtract 4 from both sides of the inequality.
3x-4<22-4
This cancels out the 4, so the 3x is isolated
3x/3<18/3
Finally, simplify to get the answer.
x<6
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plz help. its easy brainliest
Answer:
ur welcome brainliesit pls
Step-by-step explanation:
6. x=2
7. x=3
8.x=-7
Four zeros of a 5th degree polynomial are 12,3,-5 and 1+2i. What is the 5th zero in this polynomial
Answer:
1-2i
Step-by-step explanation:
complex roots come in conjugate pairs
what is 7,233 divided by 84?
Asppppp help Im taking a quixxxx
Answer: a, b, d
Step-by-step explanation: don’t count me on it
Answer:
B, D
Step-by-step explanation:
just find the common denominator and see if it works
Help please............................
Step-by-step explanation:
csc x / (cot x + tan x)
Write in terms of sine and cosine.
(1 / sin x) / [(cos x / sin x) + (sin x / cos x)]
Multiply top and bottom by sin x.
1 / [cos x + (sin²x / cos x)]
Multiply top and bottom by cos x.
cos x / (cos²x + sin²x)
Use Pythagorean identity.
cos x / 1
cos x
PLS HELP! CLICK HERE!!!!!
Answer:
its 2
Step-by-step explanation:
bc i said so period
If the CPI changes from 121 to 124 between December 2018 and December 2019, the:
deflation rate for 2019 is 2.4%
inflation rate for 2019 is 4.2%.
inflation rate for 2019 is 2.5%.
deflation rate for 2019 is 3%.
Answer:
Inflation rate for 2019 is 2.5%
Step-by-step explanation:
(124/121) - 1 = 1.02479 - 1 = .02479
Change 0.02479 to percent by multiplying 100 = 2.479%
Round this up to 2.5%
Since the value is increasing from 121 in 2018 to 124 in 2019, this is an inflation.
Answer:
jus 2 ez pz broski lemon squeze
Step-by-step explanation:
If the snow is falling at a rate of 1 2/3 inches per hour, how many hours will it take to snow 12 inches?
Answer:
It'll take 7.2 hours
Step-by-step explanation:
(5/3)in 12in
--------- x --------
1 hr x hr
Cross multiply and you get
(5/3)x = 12
Then you divide 12 by (5/3) and you get that x = 7.2 hrs
Answer:
7.2 hours
Step-by-step explanation:
1 2/3 inches per hour = 5/3 inches per hour
12 inches = 36/3 inches
(36/3) / (5/3)
(36/3) x (3/5)
108/15
7.2 hours
Solve the inequality statement:
4r-5<5r+7
Answer:
r<-12Step-by-step explanation:
hope this helps........
Answer:b
Step-by-step explanation:
Piano lessons with ms bennett cost $30 for 3/4 of an hour what is ms bennetts hourly rate?
Answer:
im not sure but I think its 40
Step-by-step explanation:
bc 3/4 is $30 so 4/4 is an hour then she each would be $10 so 1/4 is 10 then 2/4 is 20 then 3/4 is 30 then 4/4 is 40
Answer:
$40 per hour
Step-by-step explanation:
3/4 of 1 hour = 3/4 of 60 min = 45Set up a proportion: [tex]\frac{30}{45} = \frac{x}{60}[/tex] Cross multiply, then divide: 30 × 60 = 1800, 1800 ÷ 45 = 40So, Ms. Bennett's hourly rate is $40 per hourI hope this helps!
A business owner wants to have the front row window.
Look at the photo please I will name Brainlyest
FIRST RIGHT GETS BRAINLIEST
Answer:
20
Step-by-step explanation:
every line is a multiple of 2.
Answer:
The answer is 20
Step-by-step explanation:
The first line is 0 then is goes by two
0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20.
Which of the following are polynomials?
Is this relation a function? Justify your answer.
Please help me!! 5:45pm est! Answer as soon as you can!
Answer:
D
Step-by-step explanation:
If the total income generated from gasoline for AER was 408 million how much would the cost forna barrel of gasoline
Answer:
kkkkk
Step-by-step explanation:
kkkkkk kkkkkk kkkWhy were the Punic War so important for the development of the Roman Empire?
Answer:
20
Step-by-step explanation:
If you have 60,000,000 barrels of crude oil and 34% of the barrels are gasoline then you have to set up the problem like this because you have to find out how much 34% of 60,000,000 is first in order to solve the problem.
is/of x 100/%
60,000,000 / a X 100 / 34
so..60,000,000 x 34 = 2,040,000,000
then divide that amount by 100= 2,040,000,000 / 100 = 20, 400,000
so the 34% actually is the total 20,400,000. Now, you divide the dollar amount 408,000,000 million barrels by the total amount of gasoline which is 20,400,000.
408,000,000 / 20,400,000 = 20
So each barrel of gasoline cost $20.
plz help... ill give u 20 points
The result of which expression will best estimate the actual product of (Negative four-fifths) (three-fifths) (Negative StartFraction 6 over 7 EndFraction) (five-sixths)?
(Negative 1) (one-fourth) (Negative 1) (negative 1)
(Negative 1) (one-half) (Negative 1) (1)
(Negative StartFraction 4 over 2 EndFraction) (Three-halves) (Negative two-fifths) (Five-halves)
(Negative three-fourths) (Negative three-fourths) (Negative one-fifth) (One-half)
Answer:
The Answer Is B
Step-by-step explanation:
-4/5 = -1 (Rounded)
3/5 = 1/2 (Rounded)
-6/7 = -1 (Rounded)
5/6 = 1 (Rounded)
If your looking for the whole thing it would be:
(-1)[1/2](-1)(1) = x
Your Welcome! <3
The result of which expression B will best estimate the actual product of (-4/5) × (3/5) × (-6/7) × (5/6).
What are arithmetic operations?The study of numbers and their operations, which are relevant to all other fields of mathematics, is part of the discipline of arithmetic operations. Addition, subtraction, multiplication, and division are the basic operations that make up this system.
It is given that the expression is, a product of Negative four-fifths) (three-fifths) (Negative StartFraction 6 over 7 EndFraction) (five-sixths),
= (-4/5) × (3/5) × (-6/7) × (5/6)
The final result of the given expression is,
= 360/1050
=0.34
The product of the given values in the expression B is obtained as the equivalent expression to the given values.
Thus, the result of which expression B will best estimate the actual product of (-4/5) × (3/5) × (-6/7) × (5/6).
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The coordinate grid shows points A through K. What point is a solution to the system of inequalities? y < −2x + 10 y < 1 over 2x − 2 coordinate grid with plotted ordered pairs, point A at negative 5, 4 point B at 4, 7 point C at negative 2, 7 point D at negative 7, 1 point E at 4, negative 2 point F at 1, negative 6 point G at negative 3, negative 10 point H at negative 4, negative 4 point I at 9, 3 point J at 7, negative 4 and point K at 2, 3 I B A F
Answer:
I think that it could be A, or the third choice.
We need to see which points are solutions for the given system of inequalities, thus the solutions are points B and L.
What is inequality?Inequality is defined as the relation which makes a non-equal comparison between two given functions.
Solving a system of inequalities we have the system here;
y <-2x + 10
y < 1/(2x - 2)
A point is a solution of the system if and only if it is a solution for both inequalities.
Now, Shade the region below the like for x = 5.
y = -2(5) + 10
= -10 + 10
= 0
For x= 0
y = -2(0) + 10
= 0 + 10
= (0, 10)
The diagram is attached below.
So, only B and L are solutions for the system.
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Find the measure of the indicated angle.
14
?
29
Answer:
15
Step-by-step explanation:
I guess it is 29-14 which obviously is 15 as we know
) Samantha has 6/7 of a apple pie. Drayden has 3/7 of a apple pie. How much pie do they have altogether? (Make sure to simply if possible) *
10 points
1 and 2/7
9/14
3/7
9/10
2) After her birthday party, Kelsey has 8/9 of pizza left over. Her best friend Savanna ate 1/9 of the leftover pizza. How much of Kelsey's pizza is left? *
10 points
10/9
7/9
None
1/3
3) Simplify the following fraction: 9/12 *
10 points
4/6
9/12 - You can't simplify
1/2
3/4
Answer: 1 2/7, 7/9,3/4
Step-by-step explanation: 9/7 you had to make a whole then make the fraction 2/7. 7/9 you literally just had to subtract 8-1 to gt 7 and because the denominator didn't need to change it so that makes it 7/9. And the last one 9/12 well 3 can go into 9 and 12 evenly. For 9 it goes in 3 times and for 12 it goes in 3 to any you get 3/4.
Which decimal number is equal to 18?
0.125
0.125¯¯¯¯¯
0.125¯¯¯¯
0.125¯
Answer:
if you mean 1/8 then its 0.125 (top choice)
Step-by-step explanation:
1/8=(1/4)/2=0.25/2=0.125
So what s the meaning for X and Y
The first x is the horizontal coodinate (abscisa) and second is the vertical coordinate (ordenate). Both are coordinates. (x,y) has the meaning of a complex number: x is the real part and y is the imaginary part: x+yi. (x,y) has the meaning of a plane's vector from origin of coordinates.
An investment account earns 4% the first year, 5% the second year, and X% the third year. Find X if the three year average interest rate is 10%.
Answer:
The answer is 1 percent because if you add the 5% and 4% you get 9% and all there is left of the average interest 10 and get 1
Step-by-step explanation:
May i please get Brainiest
To make the expression 4x−2+□(2x+4) equivalent to 2(6x+7), what must be the value in the box? PLSSSSS HELLPPP
Answer:
4 goes in the box
Step-by-step explanation:
The solution of the equation 4x − 2 + y(2x + 4) = 2(6x + 7) will be 4.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
Let the value inside the box be 'y'. Then the equation is given as,
4x − 2 + y(2x + 4) = 2(6x + 7)
Simplify the equation, then we have
4x − 2 + y(2x + 4) = 2(6x + 7)
4x − 2 + y(2x + 4) = 12x + 14
y(2x + 4) = 8x + 16
y = 4(2x + 4) / (2x + 4)
y = 4
The solution of the equation 4x − 2 + y(2x + 4) = 2(6x + 7) will be 4.
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PLZ HELP FASTTTTTTTT
For his birthday, Zack and three of his friends went to a movie. They each got a ticket for $8.00 and the same snack from the concession stand. If Zack’s mom paid $48 for the group’s tickets and snacks, how much did each snack cost? The equation 4( s +8) = 48 represents the situation when s represents the cost, in dollars, of one snack.
Answer:
Which number is IRRATIONAL? A) √12 B) √36 C) √64 D) √144
Step-by-step explanation: