Martin was given 10 math problems, and he has answered 7 of them. What percent of the problems does Martin have
left to do?
A)
3%
B)
79
30%
D
70
Answers
Related Questions
please help im struggling and it’s due in 30 minutes
Answers
Kevin is 3 times as old as
Daniel. 4 years ago, Kevin was 5 times as old as Daniel.
How old is Daniel now?
Answers
Answer:
Daniel is 8 years old now.
Step-by-step explanation:
From the word problem we can make the following two equations:
Let "K" be Kevin's age now and let "D" be Daniel's age now, then...
K = 3D
K - 4 = 5(D - 4)
Now we substate the value of K, and get...
K - 4 = 5(D - 4)
3D - 4 = 5(D - 4)
3D - 4 = 5D - 20
3D - 5D = - 20 + 4
- 2D = - 16
D = 8
Therefore Daniel is 8 years old now.
solve this problem please
Answers
Answer:
Check pdf
Step-by-step explanation:
Use the distributive property to write an equivalent expression. 7(g+2h)
Answers
Answer:
7g+14h
Step-by-step explanation:
Distributive property means you will be multiplying each component by the value you are distributing in this case (7)(g)+(7)(2h) which yields 7g+14h
Which function is represented in the graph shown?
A)
f(x) = x2 + 2x - 15
B)
f(x) = x2 - 8x + 15
0
RX) = -x2 + 2x + 15
D)
RX) -x? - 2x + 15
HELP ASAP
Answers
Answer:
wheres the graph? u can insert a image!
Step-by-step explanation:
In a shipment of 400 parts, 14 are found to be defective. How many defective parts should be expected in a shipment of 1200?
Answers
1200 parts/ 400 parts = 3
12 parts x 3 = 36 parts
In 1200 parts, 36 would be bad.
Walter lived 2 years longer than his brother Martin. Walter was 79 at the time of his death. Which equation could be used to find Martin's age, a, at the
time of his death?
O a + 2 = 79
O 79 + 2 = a
O 79 + a = 2
O a- 79 = 2
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2. Y - 3 = X + 2
2X - 1 = Y
Show your work
Answers
2X - 1 = Y ........................... (2)
From (2),
2X - 1 = Y
Y = 2X - 1
Sub (2) into (1),
(2X-1) - 3 = X + 2
2X - 1 - 3 = X + 2
2X - X = 2 + 1 + 3
X = 6
Sub x=6 into (1),
Y = 2(6) - 1
Y = 12 - 1
Y = 11
Tony took out a loan for 7000 that has a intrest rate of 7.5% compounded annually after 15 years how much will the total loan amount be After 15 years how much will tony pay in intrest
Answers
Answer:
$7875
Step-by-step explanation:
Interest is calculated by the formula: I = Prt
I (interest)
P (principle)
r (rate)
t (time)
Substitute
I = (7000)(0.075)(15)
I = 7875
Thus, our interest is $7875
Pls help me with my homework I need help
Answers
Answer:
need points luvk
Step-by-step explanation:
Do the arccos (cos^-1) * 0.7
what does p equal?pls help me.
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[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the inequalities.
9p -9 <4p -2
===> 9p - 4p < -2 +9
===> 5p < 7
===> p < 7/5
hence the answer is P < 7/5
what is an answer to the following equation?
5z=60
1. z=65
2. z=55
3. z=300
4. z=12
Answers
Answer:
z=12
Step-by-step explanation:
5z=60
divide both sides by 5
z=60/5
z=12
Answer:
5z/5=60/5
4
12
answer to the question is 12
What is the slope of the line?
Answers
Answer:
1
Step-by-step explanation:
slope=rise/run
rise is up or down
run is right or left
9/9=1 or -9/-9=1
so the answer is 1
Which is a set of collinear points?
Two lines intersect at point H. One line goes through points L and J. The other line goes through points G, I, and K.
A. G, H, I
B. L, H, I
C. G, H, J
D. G, I, J
Answers
Answer:
Step-by-step explanation:
Abcd
A car travles at a speed of 44mph for 15 minutes. Calculate how far it travles.
Answers
Answer:
11 miles
Step-by-step explanation:
Answer:
11 m
Step-by-step explanation:
Speed = 44 mph
Time = 15 minutes = 15/60 = 1/4 hour
Distance = Speed * time
= 44 * [tex]\frac{1}{4}[/tex]
= 11 m
1.5+4=2.3−1.2 in decimal form
Answers
Answer:
5.5=1.1
Step-by-step explanation:
hope this helps:)
The original cost of a pair of shoes is 850dhs. The store offers a markup of 30%. Find the retail price of pair of shoes.
Answers
Answer:
Step-by-step explanation:
4. Find the value of x.
A) 6 √ 2
B) 12 √ 3
C) 24 √ 3
D) 12
Answers
24^2=12^2+x^2
sqrt(576-144)=x
sqrt(432)=x
12sqrt(3)=x
the answer is c
COLOR THEME Q ZOOM 1. The ratio of boys to girls at a dance was 9 to 5. How many girls were at the dance if there were 72 boys at the dance? 45 girls 90 girls 40 girls 108 girls
Answers
Answer:
72 boys=72:40
45 girls=81:45
90 girls=162:90
40 girls=72:40
etc.
Step-by-step explanation:
think of it as fractions
Find y. Give your answer in
the simplest form.
y =
Enter the number that belongs in the green box.
Answers
Answer:
y = 8 root 2
Step-by-step explanation:
Since it is a 90-45-45 triangle, y is s root 2
s = 8
so, y = 8 root 2
Answer:
y=8√2
Step-by-step explanation:
Because 2 of the angles are the same, the triangle is isosceles (because of base angles theorem). Therefore, x=8. Using Pythagoras theorem, y=8√2.
Write a number with one decimal place, that is bigger than 5 1/3
but smaller than 5.5
Answers
Answer:
5.4......................
Answer:
5.4
Just say i did the question on MathsWatch
A car travels 60 km in 40 minutes.
Answers
Answer:
what is the question?? nebebaiajbw
I have a math test in an hour and a half. It’s about algebraic word problems. Can someone help me. I’m really struggling in maths and might fail
Answers
Answer:
yes I can try to help you what I can
WORD PROBLEMS require practice in translating verbal language into algebraic language. See Lesson 1, Problem 8. Yet, word problems fall into distinct types. Below are some examples.
Example 1. ax ± b = c. All problems like the following lead eventually to an equation in that simple form.
Jane spent $42 for shoes. This was $14 less than twice what she spent for a blouse. How much was the blouse?
Solution. Every word problem has an unknown number. In this problem, it is the price of the blouse. Always let x represent the unknown number. That is, let x answer the question.
Let x, then, be how much she spent for the blouse. The problem states that "This" -- that is, $42 -- was $14 less than two times x.
Here is the equation:
2x − 14 = 42.
2x = 42 + 14 (Lesson 9)
= 56.
x = 56
2
= 28.
The blouse cost $28.
Example 2. There are b boys in the class. This is three more than four times the number of girls. How many girls are in the class?
Solution. Again, let x represent the unknown number that you are asked to find: Let x be the number of girls.
(Although b is not known -- it is an arbitrary constant -- it is not what you are asked to find.)
The problem states that "This" -- b -- is three more than four times x:
4x + 3 = b.
Therefore,
4x = b − 3
x = b − 3
4 .
The solution here is not a number, because it will depend on the value of b. This is a type of "literal" equation, which is very common in algebra.
Example 3. The whole is equal to the sum of the parts.
The sum of two numbers is 84, and one of them is 12 more than the other. What are the two numbers?
Solution. In this problem, we are asked to find two numbers. Therefore, we must let x be one of them. Let x, then, be the first number.
We are told that the other number is 12 more, x + 12.
The problem states that their sum is 84:
word problem = 84
The line over x + 12 is a grouping symbol called a vinculum. It saves us writing parentheses.
We have:
2x = 84 − 12
= 72.
x = 72
2
= 36.
This is the first number. Therefore the other number is
x + 12 = 36 + 12 = 48.
The sum of 36 + 48 is 84.
Example 4. The sum of two consecutive numbers is 37. What are they?
Solution. Two consecutive numbers are like 8 and 9, or 51 and 52.
Let x, then, be the first number. Then the number after it is x + 1.
The problem states that their sum is 37:
word problem = 37
2x = 37 − 1
= 36.
x = 36
2
= 18.
The two numbers are 18 and 19.
Example 5. One number is 10 more than another. The sum of twice the smaller plus three times the larger, is 55. What are the two numbers?
Solution. Let x be the smaller number.
Then the larger number is 10 more: x + 10.
The problem states:
2x + 3(x + 10) = 55.
That implies
2x + 3x + 30 = 55. Lesson 14.
5x = 55 − 30 = 25.
x = 5.
That's the smaller number. The larger number is 10 more: 15.
which of the following functions is graphed below?
Answers
nat is flying a kit outside but gets a little hungry. they anchor the kite to the ground by tying a string to a post and notice that 200 yards of the string have been let out. the kite string makes an angle of 57 degrees with the ground. while nat eats a snack, they look at the kite and wonder how high it is off the ground.
Answers
Answer:
Check pdf
Step-by-step explanation:
9) When you convert units, the unit in the
numerator of the first fraction needs to go
into the of the second fraction,
(A) denominator B) numerator
Answers
does anyone know how to solve this? pls leave instructions
Answers
Answer:
7.5
Step-by-step explanation:
A new car is purchased for 23700 dollars. The value of the car depreciates at 13% per
year. To the nearest year, how long will it be until the value of the car is 8000 dollars?
Answers
Answer:
the car will be closest to 8000 in year 8. the car would be worth 7778.
Answer:
Year 5
Step-by-step explanation:
If the value decreases by 13% each year that is $3,081 each year (0.13x23,700=3,081)
Year 1: 23700-3081=20619
Year 2: 20619-3081=17538
Year 3: 17538-3081=14457
Year 4: 14457-3081=11376
Year 5: 11376-3081=8295
Year 6: 8295-3081=5214
So, the year would be year 5 and the value of the car would be $8,295
Question 2 of 20 -
2020-2021 T-Mat
What is the area of the shape below?
6 yd
4 yd
5 yd
9 yd
Answers
I want to take the measurements of my 5 avocado trees and order their
heights from shortest to tallest, that way they can get enough sunlight to
continue growing. I have to worry about sea level, so those above sea
level get sunlight more easily (positive is above sea level, negative is
below sea level). The 5 heights are in feet: 6,-3, 2,-8,-6. Please help me
order them from shortest to tallest so I plant them in the right order to get
enough sunlight.
Answers
Answer:
If we are saying everyhing above sea level is taller then plants under sea level. Then here is the order
Step-by-step explanation:
-8, -6, -3, 2, 6
And just in case it's above sea level the shortest then 6, 2, -3, -6, -8