85 out of 350 books in the library are about Mysteries.
What percent of the books are Mystery books?
Answer:
nearly 24%
Step-by-step explanation:
85=350×a/100
85=3.5a
a=85/3.5
nearly 24%
ty-qy+p=r solve for y
Answer:
[tex]\huge\boxed{y= \frac{r-p}{t-q}}[/tex]
Step-by-step explanation:
In order to solve for y in this equation, we can algebraically manipulate it to isolate y one one side of the equation.
Step 1: Subtract [tex]p[/tex] from both sides of the equation.
[tex]ty - qy + p - p = r[/tex] [tex]ty-qy=r - p[/tex]Step 2: Factor out the common term [tex]y[/tex] from the left side
[tex]y( t-q ) = r-p[/tex]Step 3: Divide both sides by [tex]t-q[/tex]
[tex]\frac{y(t-q)}{t-q} = \frac{r-p}{t-q}[/tex] [tex]y = \frac{r-p}{ t-q}[/tex]Hope this helped!
100 points! Help on 10 and I will mark brainliest
Answer:
Step-by-step explanation:
If each grid piece is 1 block, and there are going to there are 5 the 6*.05 = .3
the answer to your question is (If each grid piece is 1 block, and there are going to there are 5 the 6*.05 = .3)
What is the slope of the line?
Answer:
Step-by-step explanation:
by inspection.. ( looking at the graph) we can see that the slope is down hill. so it's going to be negative and also slope = rise / run [rise is negative in this question] soo ... i'm looking carefully to see where the line is crossing the grid marks exactly .. it looks like to me (-3,1) and (2,-3) you tell me if that looks right... if it does .. then the rise / run is 4/5 and this is a negative slope sooo
- 4/5
:)
The sum of two numbers is 4. The larger number is 12 more than three times the smaller number. What are the numbers?
Step-by-step explanation:
So, we will take one of the numbers = x
And the other is 12 more than 3 times it, so = 3x + 12
So they said if we add them, we will get 4
So x + (3x + 12) = 4
4x + 12 = 4
4x = 4 - 12
4x = - 8
x = - 8 ÷4
x = - 2
So one of the numbers x = - 2
The other is 3x + 12
So x = - 2
3x +12 = 3(-2) + 12
= 6
So the 2 numbers = 6 and - 2
Lets check!
6 + (-2) = 4
So it's right!
Find the value of x that makes m|| n.
Answer:
[tex]\huge\boxed{x=23}[/tex]
Step-by-step explanation:
In order to find the value of x that makes m || n, we need to note something.
When two parallel lines are cut by a transversal, their angle measures will be the same.
Therefore, in order for m and n to be parallel, their two angles listed must be equivalent.
So, we can set these expression equal to each other and solve for x.
[tex]7x - 11 = 4x + 58[/tex] [tex]7x = 4x+ 69[/tex] [tex]3x = 69[/tex] [tex]x = 23[/tex]Therefore, x=23.
Hope this helped!
Arian has 780 in a savings account that earns 2.5% simple interest annually. How much money will be in her account if she does not make any deposits or withdrawals in 2 years?
Answer:
819
Step-by-step explanation:
We solve the above question using simple interest
The formula for the total amount in a bank amount when it earn simple interest annually is:
A = P(1 + rt)
When
P = Initial amount in the account = 780
r = Simple Interest rate = 2.5% = 0.025
t = 2 years
A = 780(1 + 0.025 × 2)
A = 780(1 + 0.050)
A = 780(1 .050)
A = 819.00
The amount of money that will be in her account if she does not make any deposits or withdrawals in 2 years is 819.
Which side has a length of 10 units?
Answer:
I'm not honestly for sure but i'm guessing the side G, J because it is the longest!
Hope this helps,
0Drink0Milk0
it is Gj your welcome it has to be
Please help I don’t understand
Makiyha Martin
Janice bought a computer. She paid $780.00 plus sales tax. The sales
tax was 4%. How much did she pay in sales tax?
Answer:
$31.20
Step-by-step explanation:
1. Calculate the tax amount. To do this, you multiply the price by the tax rate.
$780 x 4% = $31.20
The total tax paid was $31.20
Answer:
B
Step-by-step explanation:
janice got ripped off buying a computer for $780.
she could have easily built her own computer with similar specs for less money or use the same amount of money to build a way better pc.
-5(n-1)=7(n+3)
Solve for the missing variable please help!
Answer:
n = - [tex]\frac{4}{3}[/tex]
Step-by-step explanation:
Given
- 5(n - 1) = 7(n + 3) ← distribute parenthesis on both sides
- 5n + 5 = 7n + 21 ( subtract 7n from both sides )
- 12n + 5 = 21 ( subtract 5 from both sides )
- 12n = 16 ( divide both sides by - 12 )
n = [tex]\frac{16}{-12}[/tex] = - [tex]\frac{4}{3}[/tex]
Answer:
Step-by-step explanation:
To solve this you have to use the distributive property.
So first you would distribute the -5 to n and -1.
So the new equation will be -5n + 1 = 7 (n + 3)
Next, distribute the 7 to n and 3.
The new equation will be -5n + 1 = 7n + 21
Next you simplify by adding 5n to both sides which will give you 1 = 12n + 21
Then you subtract 21 from both sides and get -20 = 12n
So then you divide both sides by 12 to get n by itself and you are left with -5/3 = n
Find the value of a.
Answer: 14
Step-by-step explanation: The perimeter is all of the side added together. When finding the perimeter of a rectangle the opposing sides have the same value. So the equation would be 2(12) + 2(a) = 52. 12 x 2 is 24. 52- 24 is 28 and youre left with 28 = 2(a). You divide each side by 2 and get 14 = a
Mark has 10 pens. Kate has 5 times as many pens as Mark. Which equation below answers how many pens Kate has?
Answer:
5m = k or 5(10) = k
Step-by-step explanation:
Let m represent Mark
Let k represent Kate
So, it is 5 times the amount that Mark has, so that is 5m = k
or just simply 5(10) = k
The pens that Kate has is equal to 50
What is an equation in math?In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.
Given here, let mark has x= 10 pens and Kate has 5 times as many pens as Mark then kate would have 5x pens
therefore5x = 5×10
= 50 pens
Hence, The pens that Kate has is equal to 50
Learn more about equations here:
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19. Mel cleans houses.
She earns $7.50 every hour that she dusts.
She earns $10.00 every hour that she scrubs floors.
She scrubbed floors for 1 1/2 hours and dusted for hours.
How much money did Mel earn?
Answer: $45
Step-by-step explanation: 10 for the hour she scrubbed the floor half of that which is 5 for the half hour she scrubbed so that would be $15, then 7.50 times 4 for the hours she dusted which would be 30, and 30 plus 15 is 45
Can someone please help answer this question quickly? :)
Write the equation of the line with the given slope and y Intercept.
m=0 b = -11
Help ASAP please help
Answer:
Step-by-step explanation:
another isosceles triangle
SOH CAH TOA
Cos(x)=Adj/ Hyp
Hyp*Cos(45) = Adj
26 * [tex]\sqrt{2}/2\\[/tex] = Adj
13[tex]\sqrt{2}[/tex] both legs
8 feet in 15 seconds; 16 feet in 40 seconds
does this rate form a proportion?
Answer:
no
Step-by-step explanation:
8 ft in 15 sec
16 ft in 40 sec
8 is obviuosly half of 16, so to make it proportional it would have to be 16 ft 30secs
Write an equation of the line that is the perpendicular bisector of the line segment having endpoints
(3,-1) and (3,5).
Answer:
Equation of perp/bisector: y = 2
Step-by-step explanation:
The equation of the line that is the perpendicular bisector of the line segment having endpoints (3, -1) and (3, 5) is y = 2.
What is the equation of a line?A straight line's general equation is y = MX + c, where m denotes the gradient and y = c denotes the point at which the line crosses the y-axis. On the y-axis, this value c is referred to as the intercept. Key Concept. Y = MX + c represents the equation of a straight line with gradient m and intercept c on the y-axis.Perpendicular bisector:
Lines that cross each side's midpoint and are perpendicular to the specified side are known as a triangle's perpendicular bisectors.Key concept:
Y = MX + c represents the equation of a straight line with gradient m and intercept c on the y-axis.Slope through the indicated points:
(5--1)/(3--3) = undefinedThus, m = 0 is the slope of the perpendicular bisector.Midway along the segment, x = (3+3)/2 = 3 and y = (-1+5)/2 = 2.The midway is (3,2), and the line is horizontal through if slope = 0. (3,2).The equation of the line that is the perp/bisector of the line segment is y=2.
Therefore, the equation of the line that is the perpendicular bisector of the line segment having endpoints (3, -1) and (3, 5) is y = 2.
Know more about Line's equation here:
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QUICK HELP ME PLEASEEEEEEE. ONLY ONE HOUR LEFT! WILL MARK BRAIN...
Answer:
copy and paste it to math website
Step-by-step explanation:
After 2 week he has used 8 1/2 cups of dog food after 5 week he has used 21 1/4 cups construct a function in the form y =mx+ to represent the amount of dog food used y, after x weeks
Answer:
y = 4.25x
Step-by-step explanation:
Given that:
After 2 week he has used 8 1/2 cups of dog food after 5 week he has used 21 1/4 cups, we can write this in coordinate form (x, y) where;
y is the amount of dog food
x is the time in weeks
The coordinates are (2, 8 1/2) and (5, 21 1/4)
get the slope m:
m = y2-y1/x2-x1
m = (21 1/4 - 8 1/2)/5-2
m = (85/4-17/2)/3
m = (85-34/4)/3
m = 51/12
m = 4.25
Get the intercept c:
Substitute any of the points say (2, 17/2) and m = 51/12 into the equation
y = mx+c
17/2 = 51/12(2) + c
17/2 = 51/6 + c
c = 17/2 - 51/6
c = 51-51/6
c = 0
Get the required equation:
substitute m - 4.25 and c = 0 into y = mx+c
y = 4.25x + 0
Hence the required equation is y = 4.25x
Sally sells sea-shells by the seashore. After 6 days, she has made
$16. After 17 days, she has made $60. How much does Sally
make each day?
Answer:
the right answer is$2.66
A tree casts a shadow that is 7 feet long. A person nearby casts a shadow that is 3.5 feet long. The person is
5 feet tall. What is the height of the tree?
What is the decimal multiplier to decrease by 0.6%?
Step-by-step explanation:
0.6/100= 0.006 should be multiplied to decrease by 0.6%
Order these numbers from least to greatest.
5.2052, 5.406, 5.5, 5.45
5.2052
5.406
5.5
5.45
-
Answer:
5.2, 5.4, 5.45, 5.5
Step-by-step explanation:
Least
to
Greatest
What is the slope of the line that passes through the points (–20, 18) and (30, 14)?
Negative StartFraction 25 Over 2 EndFraction
Negative five-halves
Negative two-fifths
Negative StartFraction 2 Over 25 EndFraction
Answer:
-2/25
Step-by-step explanation:
m= y2-y1/x2-x1
m=14-18/30 -(-20)
m=-4/50
m=-2/25
Answer:
-2 /25
Step-by-step explanation:
Brian invests £1800 into his bank account.
He receives 5% per year simple interest.
How much will Brian have after 3 years?
Step-by-step explanation:
[tex] \underline{ \underline{ \text{Given}}} : [/tex]
Principal ( P ) = £ 1800Rate ( R ) = 5%Time ( T ) = 3 years[tex] \underline{ \underline{ \text{To \: find}}} : [/tex]
Total amount[tex] \underline{ \underline{ \text{Solution}}}: [/tex]
First , finding the amount of interest :
[tex] \boxed{ \sf{Interest = \frac{PTR}{100}}} [/tex]
⇢ [tex] \sf{Interest = \frac{1800 \times 5 \times 3}{100}} [/tex]
⇢ [tex] \sf{Interest = \frac{27000}{100}} [/tex]
⇢ [tex] \sf{Interest = £ 270}[/tex]
Now , Finding the total amount :
[tex] \boxed {\sf{Total \: amount = Principal + Interest}}[/tex]
⇢ [tex] \sf{Total \: amount = 1800 + 270}[/tex]
⇢ [tex] \sf{Total \: amount = \: £ 2070}[/tex]
[tex] \red{\boxed{ \boxed{ \tt{Our \: final \: answer : brian \: will \: have £ 2070 \: after \: 3 \: year.}}}}[/tex]
Hope I helped ! ♡
Have a wonderful day / night ! ツ
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the price of a toy usually costing £50 is increased to £65.
Answer:
I am assuming you want the percentage increase in the price.
Step-by-step explanation:
The percentage increase is ( 15/50) * 100
= 15 * 2
= 30%.
Subtract.
15 8/12−8 5/12
Answer:
158/12-85/12 equals this in a decimal 6.083333333
and in a factor it is 73/12
Step-by-step explanation:
HOPE I HELPED
(WILL GIVE BRIANLIEST TOO FOR THE CORRECT ANSWER!)
TRUE OR FALSE FOR EACH QUESTION
1. The units for mass are based on Newtons.
2. The units for length are based on meters.
3. Area = width x length
69 points!