900 * 10 = 9000 meters
9000/1000 = 9 km
A student answers
90%
of the questions on a math exam correctly. If
sheshe
answers
27
questions correctly, how many questions are on the exam?
To find the total number of questions on the exam, set up a proportion 27 / x = 90% / 100%. Solve for x to find that there are 30 questions on the exam.
Explanation:To find the total number of questions on the exam, we can set up a proportion. Let's represent the total number of questions on the exam as x.
The proportion would be:
Correctly Answered Questions / Total Questions = Percentage Correct
Substituting the given values:
27 / x = 90% / 100%
Cross multiplying:
27 * 100% = x * 90%
27 = 0.9x
Dividing both sides by 0.9:
x = 27 / 0.9
x = 30
Therefore, there are 30 questions on the exam.
Write 10x10x10x10x10x10 as an exponent
The required answer for 10x10x10x10x10x10 as an exponent is 10⁷.
What is an exponent?An exponent is a number or letter written above and to the right of a mathematical expression called the base.
Now the given expression is,
10 x 10 x 10 x 10 x 10 x 10
Using the property,
a^a . a^b = a^(a+b)
Thus,
10 x 10 x 10 x 10 x 10 x 10 = 10^(1+1+1+1+1+1)
⇒ 10 x 10 x 10 x 10 x 10 x 10 = 10^7
or, 10 x 10 x 10 x 10 x 10 x 10 = 10⁷
Thus, the required answer for 10 x 10 x 10 x 10 x 10 x 10 as an exponent is 10⁷.
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What is 9.27 with a repiton bar over the 27 simplified to as a fraction?
-2+3n>-14
A -16/3
B -3
C -20/3
D none of the above
What is the measure of the angle 20x + 5= 24x - 1
20x +5 = 24x -1
add 1 to each side
20x+6 = 24x
subtract 20x from each side
6 = 4x
divide both sides by 4
x = 6/4 = 1.5
measure of angle: 20(1.5) +5 = 30+5 = 35 degrees
24(1.5) - 1 = 36-1 = 35 degrees
Find the total cost to the nearest cent $1,500 computer; 7% tax?
1 __ 6/3 Is less than greater than or =
The saving-borrowing-investing cycle generally begins with consumer borrowing to fund their purchases and for seed capital. They then use this capital to invest in their future, which then allows them to bring in more money. They then are able to use income to pay off their loans and to save.
Find the value of x so that the function has the given value.
h(x)=−7x ; h(x)=63
The value of x for which the function h(x) = - 7x is h(x) = 63 is - 9.
What is a function?A function can be defined as the outputs for a given set of inputs.
The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.
Given, h(x) = -7x and h(x) = 63.
∴ We can equate these two functions as h(x) = h(x) which is,
- 7x = 63.
- x = 63/7.
- x = 9.
x = - 9.
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A family budgets 1/2 of its income for housing and 1/3 for food. What fraction of their budget do these expenses cover?
solve the equation for y
5 ( y + 1 ) = 30
y = ??
In triangle ABC, the measure of angle A is , the measure of angle B is , and the measure of angle C is . What is the combined measure of the three angles?
The combined measure of the three angles in triangle ABC is angle A + angle B + angle C degrees.
Explanation:The combined measure of the three angles in triangle ABC can be found by summing the measures of angle A, angle B, and angle C.
So, the combined measure of the three angles is angle A + angle B + angle C = angle A + angle B + angle C degrees.
For example, if angle A = 40 degrees, angle B = 60 degrees, and angle C = 80 degrees, then the combined measure of the three angles would be:
40 + 60 + 80 = 180 degrees.
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roberto needs to convert the equation 3x + y = -5 into slope-intercept form. why is able to add or subtract the variable term from either side of the equation?
Write the equations of three distinct lines that have the same y-intercept,-1.
please help ❗️❗️❗️❗️❗️❗️
you have 33 marbles. Besides 1 group of 33 marbles, is it possible to divide the marbles into groups with the same number of marbles with no marbles left over
need help with some questions please
Haji rows his canoe 10 mph in still water. He noticed one day that he could row 4 miles upstream in the same amount of time he could row 6 miles downstream. What was the approximate speed of the current that day?
Answer:
2.0 mph
Step-by-step explanation:
Susan is buying supplies for a party. If spoons only come in bags of 8 and forks only come in bags of 6, what is the least number of spoons and the least number of forks she can buy so that she has the same number of each? asap and tell my how you got the answer please
Answer:
3 bags of spoon and 4 bags of fork.
Step-by-step explanation:
If Susan will buy 3 bags of spoon then, the total spoon is 3 × 8 = 24 spoons
and, If he will buy 4 bags of fork then, the total fork is 4 × 6 = 24 forks.
Thus, for getting equal numbers of spoon and fork he has to buy a minimum of 3 bags of spoon and 4 bags of fork.
Which number is not in scientific notation? 11 ⋅ 1021 5.7 ⋅ 109 3.1 ⋅ 10−12 1.67 ⋅ 10−5
Answer:
11 * 10^21
Step-by-step explanation:
I took the test
Given the two expressions shown below:
A. square root of 3 + square root of 2
B. square root of 3 + square root of 6
Which statement best describes the two expressions?
A. both rational
B. both irrational
C. A is rational and B is irrational
D. A is irrational and B is rational
Plz help Thanks for Everything Guys
You start out driving from your house to an old friend’s house in a different town, which is 280 miles away. After an hour and a half, you have gone 105 miles.
a) Assuming your speed is constant, find a linear function , which gives the distance from your house (in miles) as a function of time (in hours).
b) Find and interpret D(1).
c) Solve D(t)=280
d) Solve D(t)^3>=140 and interpret the result.
e) Considering the context of this function, what is the domain?
f) What is the range?
Find an equation of the line that has a y-intercept of -2 and is perpendicular to the graph of 3x+6y=2
10. Solve the equation for f. Show all of your work.
4f-5=7h+g
Explain the steps when solving 3(N+5)>= 3n+8. Please explain how to solve.
Write using algebra.
A bucket holds c liters of water, but a jar holds 8 liters less. How many times as much water can the bucket hold as the jar?
The ratio representing how many times as much water the bucket can hold as the jar is [tex]\frac{c}{c-8}[/tex], where c is the capacity of the bucket in liters.
If a bucket holds c liters of water and a jar holds 8 liters less than the bucket, then the jar holds c - 8 liters of water. To find how many times as much water the bucket can hold as the jar, we divide the bucket's capacity by the jar's capacity. This gives us the ratio of the bucket's capacity to the jar's capacity, which is [tex]\frac{c}{c-8}[/tex].
Please answer, , I need this by 10:00, thank you!
Use exponents to write the number 64 three different ways
If g( n ) = 3 n - 2, then what is the value of g(10)?
Gabriela works at a nearby electronics store. She makes a commission of 14%14, percent on everything she sells. If she sells a camera for $589.00dollar sign, 589, point, 00, how much money does Gabriela make in commission?