Answer:
90
Step-by-step explanation:
The magazines are sold at a discount. Discount reduces the price of the good
If the magazines are sold at 20%, the magazine's price would be 80% (100% - 20%) of the original price
let a represent price of the magazine before the discount
This equation represents price of the magazine after the discount
0.8 x a = $72
Divide both sides by 0.8 and find a
a = $90
Please help ASAP 4-10 for Brainliest
Divide £144 in the ratio 7:5
The Graf family made two pizzas. They ate 1 and 1/8 pizza before watching a movie, and 1/2 pizza more after the movie. What is a reasonable estimate for the amount of pizza left
A) Less than 1 1/4
B) More than 1/2
C) Less than 1/3
D) More than 1 1/4
Answer:
[tex]\frac{3}{8}[/tex] which is less and 1 and 1/4
Step-by-step explanation:
They have 2 pizzas to start
They ate 1 full pizza and then 1/8 of another. This leaves 7/8 left
They then ate another 1/2 of a pizza. (1/2 also is 4/8)
The Lower common domonitor of the the two is 8. To get 8 from the two you multiply by 4.
So you end up with
[tex]\frac{1}{2} * 4 = \frac{4}{8}[/tex]
So now you can subtract and get
[tex]\frac{7}{8} - \frac{4}{8}[/tex]
which the dominator remains the same and you only subtract 7-4 = 3
So your answer is
[tex]\frac{3}{8}[/tex]
Please answer this for me. Please. I'll mark whoever answers as brainliest.
Answer:
C) 60 ft
Step-by-step explanation:
From any dot in the graph you can figure out the speed.
Let's take the one at 2 minutes, because it is on a grid point.
That one tells us that in 2 minutes, the animal travels 40 feet.
That means in 1 minute, it travels half that, i.e., 20 feet.
So in 3 minutes it will travel 20*3=60 feet.
Ellie earns money by raking leaves. She earns $2.25 for each bag she fills with leaves. This week, she earns $24,75. How many bags of leaves does Ellie fill this week? Show your work.
Answer:
she raked 11 bags of leaves
Step-by-step explanation:
24.75 divided by 2.25= 11
Describe the error made when converting the equation to vertex form.
Answer:
adding 36
Step-by-step explanation:
should be:
y-27=x²-12x
y-27=x²-12x
+12 +12
y-15=x²+x
y-15=x³
+15 +15
y=15x³
why is the equation y = mx + b called the slope - intercept form?
Answer:
Step-by-step explanation:
The equation y = mx + b is called the slope-intercept form because both the slope and y-intercept are represented. The variable m, stands for slope, and the variable b, stands for slope.
am i right ? i just need clarification
Answer:
yes!!
Step-by-step explanation:
find the surface area of a cone with radius 5 ft and height 21 ft substitute pi for 3.14
Answer:
417.4ft^2
Step-by-step explanation:
Surface area of a cone = πr(r+√r²+h²)
r is the radius
h is the height
Substitute
Surface area of a cone = π(5)(5+√5²+21²)
Surface area of a cone = πr(5+√25+441)
Surface area of a cone = π(5)(5+21.59)
Surface area of a cone = 3.14*5*26.59
Surface area of a cone = 417.4ft^2
Hence the surface area of the cone is 417.4ft^2
The scale factor of the scale drawing of a mirror to the actual mirror is
represented by the ratio 1: 8. If the dimensions of the scale drawing are 3 inches
wide by 8.5 inches long, what is the actual area of the mirror?
Answer:
Step-by-step explanation:
It’d a
Joshua went to the grocery store and purchased cans of
soup and frozen dinners. Each can of soup has 200 mg
of sodium and each frozen dinner has 400 mg of sodium.
Joshua purchased a total of 10 cans of soup and frozen
dinners which collectively contain 2400 mg of sodium.
Write a system of equations that could be used to
determine the number of cans of soup purchased and
the number of frozen dinners purchased. Define the
variables that you use to write the system.
Answer:c + f = 10
200c + 400f = 2400
Step-by-step explanation:
Let's say c is the number of cans of soup and f is the number of frozen dinners.
The total number of items is 10:
c + f = 10
The total amount of sodium is 2400 mg. Each can of soup has 200 mg, and each frozen dinner has 400 mg.
200c + 400f = 2400
The problem doesn't ask you to solve the system, but I'll solve it anyway. We can use substitution or elimination. But first, simplify the second equation by dividing both sides by 200.
c + 2f = 12
Using elimination, subtract the first equation.
f = 2
Plug into either equation to find c:
c = 8
There are 8 cans of soup and 2 frozen dinners.
Simplify 6(x + 2) + 7.
6x + 19
6x + 15
6x + 9
Answer:
6x+12+7
the answer is 6x+19
Stephanie is 5 feet 2 inches tall. How tall is she in inches? a) 52 inches b) 62 inches c) 502 inches d) 602 inches i need help please
Answer:
62 inches
Step-by-step explanation:
12 * 5 = 60
60 + 2 = 62
Answer:
62 inches
Step-by-step explanation:
12 * 5 = 60
60 + 2 = 62
hear you go!
Your welcome ◑﹏◐
can y’all help me???
Answer:
its a black square
Step-by-step explanation:
CAN SOMEONE HELP ME Find the area and perimeter (or circumference) of each figure.
Answer:
6. P= 22ft
A=30ft²
7. P= 37 ft
A= 65 ft²
8. P= 36 ft
A=81 ft²
Step-by-step explanation:
What is the coefficient of the second term in this expression? -1 - 8s2?
Answer:
8
Step-by-step explanation:
i hope this helps :)
A smoothie recipe calls for 3 cups of milk, 2 frozen bananas and 1 tablespoon of chocolate syrup. Write 3 different sentences that use a ratio to describe the recipe.
PLEASE HELP ME!!!
Answer:
1) for every 1 tablespoon of chocolate, you need 3 cups of milk ( 1 to 3 )
2) The ratio of bananas to chocolate is ( 2 to 1 )
Step-by-step explanation:
i only came up with 2 sorry
What’s the percentage?
Answer:
66%
Step-by-step explanation:
66 out of 100 (66/100) of the grid is shaded, which is 66%
Given points (−2,−4) and (3,6), find the coordinates of point P on directed line segment that partitions B into a 1:3 ratio.
What is the minimum value of the function over the interval -5 < x < 5?
h(x) = log[(x – 3)^2 + 2]
Answer: ln(2)
Step-by-step explanation:
In order to minimize ln[(x – 3)^2 + 2], we have to minimize [(x – 3)^2 + 2] since natural log is an increasing function
For that, it suffices to minimize (x – 3)^2, which is non-negative for all real numbers x
As such, the minimum value is achieved when x - 3 = 0; - 5 < 3 < 5
Substitute x = 3 in the original equation to get ln(2)
In ABC, find x.
A is 35°
B is 60°
C is x
What’s x?
Answer:
x=25
Step-by-step explanation:
180-60=120
35+120+x=180
x=25
In circle A, ∠BAE ≅ ∠DAE.
Answer: the length of BE is 27
a
n
s
w
e
r
p
l
e
a
s
e
Answer is 16 because 16/4 = 4 + -12 = -8
Answer:
m=16
Step-by-step explanation:
-8=m/4+(-12)
4=m/4
16=m
so first, you add 12 to the other side to cancel out the -12. 12-8=4. so now you have 4=m/4. to isolate the m, you have to multiply by 4 on both sides, which gives you 16=m or m=16.
i hope this helps :)
A number is chosen at random from 1 to 15. Find the probability of
selecting an odd prime number.
Fast please
Answer:
Correct option is
C
5/2
Total no. of numbers=15
No. of prime numbers between 1 to 15=6(2,3,5,7,11,13)
Probability = 15
6 = 52
During the winter season, the number of visitors to a theme park decreased by 700 to 2,100. What was the theme park's population at the beginning of the winter season?
Answer: 2800
Step-by-step explanation:
From the question, we are informed that during the winter season, the number of visitors that came to a theme park decreased by 700 to 2,100.
Therefore, the theme park's population at the beginning of the winter season will be gotten by adding 700 and 2100. This will be:
= 700 + 2100
= 2800
The area of the triangle below is 5/12 square feet. What is the length of the base? Express your answer as a fraction in simplest form.
1/2 ft is the height
Answer:
5/6
Step-by-step explanation:
pls help i only have 10 minutes on my math test!!
the ratios are
8:5 ?????:10
Answer:
yes
Step-by-step explanation:
Find the mean and the MAD.
Note: Type your answers as decimal numbers, rounded to the nearest tenth.]
135, 160, 145, 155, 170, 150, 142
Mean:
MAD:
Answer:
151.0
151
9.1
Step-by-step explanation:
the reason there is a 151.0 and a 151 is because you can put it either way so if you want you can put its as 151.0 instead of 151
I hope this helps you! <3
Answer:
9.1 and 151
Step-by-step explanation:
Ms. Murray has a collection of 25 dimes and nickels. How many nickels does Ms. Murray have if she has a total of $2.30?
Find the sum of the infinite geometric sequence:
8, 4, 2, 1, .......
Answer:
Therefore the sum if the series is 15.98!The common ratio is 1/2 or 0.5 . If you multiply the current term by the the common ratio the the output will be the next term.
8⋅1/2=4
4⋅1/2=2
2⋅1/2=1 etc ...
because the absolute value of r is less than 1 we can use the following formula.
a/1−r where a is the first term and r is the common ratio
In our problem
a=8 and r=0.5
Substitute
8/1−0.5=8/0.5=16
The sum of this infinite geometric series is 16.
Also, another formula you can use that is guaranteed to work every time, no matter what, is:
Sn=a(r^n−1/r−1)
All the variables work the same way as above, and "n" is the number of terms in the series. So, say you wanted to find the sum of the first 10 terms and were to substitute everything in:
S10=8(0.5^10−1/0.5−1)
S10=15.984375
Therefore the sum if the series is 15.98!
Step-by-step explanation:
Hope it is helpful....