HELP WILL GIVE BRAINLIEST Given an expression can you write an equivalent form of the expression and explain the properties you used?
Answer:4^-3 could also be written as 1/4^3
Step-by-step explanation:
Negative exponent rule in which the number with a negative exponent gets moved to the denominator.
Sharon made $45 in interest by placing $500 in a savings account with simple interest for 1 year. What was the interest rate?
Answer: The interest rate was 9%.
Step-by-step explanation:
If principal amount P is invested at the rate of r percent with simple interest(I) for t years, the formula to find rate :
[tex]R=\dfrac{I\times100}{P\times t}[/tex]
As per given,
P = $ 500, I = $45, t = 1 year
Substitute values in formula , we get
[tex]R=\dfrac{45\times100}{500\times1}\\\\\Rightarrow R=9\%[/tex]
Hence, The interest rate was 9%.
I need help with this question
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Actually Welcome to the Concept of the indices,
[tex] \frac{ {2}^{6} }{ {2}^{4} } \times {2}^{5} [/tex]
===>
[tex] {2}^{6 - 4} \times {2}^{5} [/tex]
===>
[tex] {2}^{2} \times {2}^{5} [/tex]
===>
[tex] {2}^{5 + 2} [/tex]
===>
[tex] {2}^{7} [/tex]
hence the answer is
[tex] {2}^{7} [/tex]
Answer:
2^7
Step-by-step explanation:
2^6/2^4)*2^5=128
2^7=128
Suppose a city with population 600,000 has been growing at a rate of 4% per year. If this rate continues, find the population of this city in 25 years.
Answer:
15,600,000
Step-by-step explanation:
We start with our initial population of 600,000. Then multiply that with the rate of 4% (0.04 in decimal, or 1.04 so that the 0.04 is automatically added to the 600,000.)
600,000 · 1.04y = projected populationy = 25600,000 · 1.04(25) = projected populationsimplify!15,600,000 = proejcted population40 people can ride the roller coaster every 15 minutes. How many people can ride the roller coaster every 3 hours?
Answer:
480
Step-by-step explanation:
Answer:
486 people can ride the roller coaster in 3 hours
Step-by-step explanation:
40÷15 = 2.7
2.7 × (60×3)
2.7×180= 486
what is the gradient of the following shape
4. What expression represents the width of the room?
Answer:
35-4
Step-by-step explanation:
Answer:
Let x = represents the width
m.
Step-by-step explanation:
hope that helps -w-
There are 320 students in a school.
There are 36 more boys than girls.
What fraction of the students in the school are boys?
if triangle def is similar to triangle jkl find kl
Answer:
KL=45
Step-by-step explanation:
The temperature was 80°F and then fell 20°F.
Choices are 152
124
60
65
45
90
Please help me please help me thank you
Answer:
[tex]2\sqrt{30}[/tex]
Step-by-step explanation:
I dont feel like explaining
A car travels a distance of 190 miles in a time of 3.4 hours.
What is its average speed rounded to 1dp?
Answer:
55.9 mph
Step-by-step explanation:
190/3.4 = 55.88 mph rounded to one dp = 55.9 mph
A car travels a distance of [tex]190[/tex] miles in a time of [tex]3.4[/tex] hours, then its average speed will be [tex]56[/tex] miles per hour.
What is average speed ?Average speed is speed is the total distance traveled by the car in a particular time of interval.
Average speed [tex]=\frac{Total \ Distance}{Total \ Time}[/tex]
We have,
Distance [tex]=190[/tex] miles
Time[tex]= 3.4[/tex] hours
So, Using the above given formula,
Average speed [tex]=\frac{Total \ Distance}{Total \ Time}[/tex]
[tex]=\frac{190}{3.4}[/tex]
[tex]=56[/tex] miles per hour
So, the average speed of car is [tex]56[/tex] miles per hour which is find out using the above given formula.
Hence, we can say that if a car travels a distance of [tex]190[/tex] miles in a time of [tex]3.4[/tex] hours, then its average speed will be [tex]56[/tex] miles per hour.
To know more about average speed click here
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How do you solve this and please use explanation if you can.
Answer:
i honestly dont know
Step-by-step explanation:
i need pointsss
What is the inverse function (equation) of f(x) = 6x - 5 ?
Step-by-step explanation:
Given
f(x) = 6x - 5
f^-1(x) = ?
Let
y = f(x)
y = 6x - 5
Interchanging the roles of x and y we get
x = 6y - 5
6y = x + 5
y = ( x + 5 ) / 6
So therefore f^- 1(x) = (x + 5) / 6
Hope it helps :)❤
Matthew made a fruit salad in which the ratio of blueberries to red grapes is 8:6 if Matthew use 28 blueberries how many red grapes did he use
Answer:
21 red grapes
Step-by-step explanation:
B:G
8:6
28:x
28/8=3.5
therefore 6*3.5 = x
Answer:
The answer is 21
Step-by-step explanation:
If you do 28/8 you get 3.5. So he used 3 1/2 blueberries. Then you have to times 6 by 3.5 to get 21. Put it back into ratio form and you get 28:21
Hope this helps!
Daniel has dinner at a restaurant and the cost of his meal is $28.00. Because of the service, he wants to leave a 20% tip. What is his total bill including tip?
Answer: answer is $33.60
Step-by-step explanation:
find x: 9(2x+1)=81(3x+2)
Answer:
Exact form: x = -17\25
Decimal form: x = -0.68
Two angles are congruent if
Answer:
they are exactly the same
Step-by-step explanation: congruent means that they are equal, so if the angles are the same they are congruent
What is the area of this parallelogram?
A. 28 m²
B. 56 m²
C. 84 m²
D. 120 m²
PLS HELP I'LL GIVE BRAINLYIST
Answer:
84m^2 or C
Step-by-step explanation:
area = base * height
= 12 * 7 = 84
Answer:
8 + 4 = 12 x 7 = 84m
What is the measure?
Answer:
70-45
Step-by-step explanation:
becauae w= 70-45 and w+45=70
£3.23 + £1.47 =
What is the answer i've tried so many different ones an they never seem to be wright?
Answer:
£4.7
Step-by-step explanation:
Answer:
£4.7
Step-by-step explanation:
Isabella is travelling in Brazil during the summer, She knows that a 15-minute phone call home to her family costs $45.85 and a 20-minute phone call costs $58.30 sabella only has $55.81 to spend on her phone call. How long can she talk to her family?
I don’t understand pls help!!
Answer:
7.9 m
Step-by-step explanation:
Use the Pythagorean theorem: a²+b²=c²
This formula can be used to solve a side of any right (90°) triangle.
c² is the length of the hypotenuse (the diagonal side of the triangle, opposite to the 90° angle)
So, c = 32m.
Sides a and b are the legs of the triangle, but we only know one side. Plug numbers into the formula:
31² + b² = 32²
961 + b² = 1024 Subtract 961 from both sides to get b² by itself.
b² = 63
√b² = √63 Square root both sides to get b by itself.
b = 7.93725
Answer is 7.9 meters, rounded to tenths place
3/8 - 1/4x =1/2 x - 3/4
please help solve for x and show work
Answer:
x=3/2 (or 1.5)
Step-by-step explanation:
Subtract 3/8 from both sides
Simplify
Subtract 1/2x from both sides
Simplify
Multiply both sides by 4
Simplify
Divide both sides by -3
Guy plz Quickly
Ashley wants to know how much wrapping paper is needed to cover a box with the dimensions shown.
What is the surface area of the box?
A.
140 square inches
B.
190 square inches
C.
95 square inches
D.
175 square inches
Answer:
A. 190 inches
Step-by-step explanation:
Plug in the numbers to the surface area formula to get 190, i messed up last time
Help with this it’s due today
The toll on a highway is based on the number of miles driven. If the toll on a 15-mile stretch of highway is $0.60, find the cost to drive a 80-mile stretch?
Answer:
20 it would cost 20 dollars to drive an 80-mile stretch
Kathryn and karina are neighbours and they are each planning rosebushes and butterfly plants in their yard. They bought their plants from the same store. Catherine spent $111 on four rosebushes and seven butterfly plants. Karina spent $132 on five rosebushes and eat butterfly plants. What is the cost of one rosebush and the cost of one butterfly plant?
A rosebush : $10, butterfly plant $7
B Rose bush: $9 ,butterfly plant $12
C rosebush; 12 , butterfly plant $9
D rose bush : $14, butterfly plant $7
Answer:
d a rosebush 14 butterfly plant 7
Step-by-step explanation:
don't believe me ask some body else okkkkkur
area is the amount of .......a figure covers ?
Answer:
surface
Step-by-step explanation:
Answer: Area for a 2D image is the space it covers.
Step-by-step explanation:
If you have an empty square and you shade it in, what you are shading is its area. You can find area of a square or rectangle by multiplying its length by its width. For more complicated shapes there are formulas you can use.