Tiffany answered 87% of the questions on her math test correctly. There were 50 questions on the test. How many questions did tiffany answer correctly?
Answers
Answer:
Step-by-step explanation:
Change 87% to its decimal form: .87
Take 50 and multiply it by .87
43.5 is the answer (if you have to round it is 44)
Related Questions
How black hole does work.
the formula F = 1.8C + 32 gives the temperature in degrees Fahrenheit (F) for a given temperature in degrees Celsius (C). There is one temperature for which the number of degrees Fahrenheit is equal to the number of degrees Celsius. Write an equation you can solve to find that temperature and then use it to find the temperature.
the graph models the cost of cheese pizza with extra toppings at two different restaurants. According to the graph, about how many pizza toppings must be added to make the cost of the pizzas equal? A. 5 B. 10 C. 12 D. 16
Which of the following would not be the result of a substitution in the following system?2x + y = 7y - x= 1A. 7 - 2x- x = 1B. 2x + x + 1 = 7C. 2(y + 1) + y = 7
Answers
The formula of a circumference is:
r - radius
or
d - diameter
We have d = 12cm. Substitute:
One-fourth of the circumference:
Answer: 9.42 cm.
b) (f-g)(1/4)
c) (fg)(5)
d) (f/g)(0)
Answers
Answer:
a. 20 b. 1 13/16 c. 78 3/4 d. undefined
Step-by-step explanation:
since f(x)=4x+1 and g(x)=3x/4
a) (f+g)(4)
= f(4) + g(4)
f(4) = 4(4)+1 = 17
g(4) = 3(4)/4 = 3
therefore
(f+g)(4) = 17 + 3 = 20
b) (f-g)(1/4)
= f(1/4) - g(1/4)
f(1/4) = 4(1/4)+1 = 2
g(1/4) = 3(1/4)/4 = 3/16
therefore
(f-g)(1/4) = 2 - 3/16 = 29/16 = 1 13/16
c) (fg)(5)
= f(5) x g(5)
f(5) = 4(5)+1 = 21
g(5) = 3(5)/4 = 15/4
therefore
(fg)(5) = 21 x 15/4 = 315/4 = 78 3/4
d) (f/g)(0)
= f(0) / g(0)
f(0) = 4(0)+1 = 1
g(0) = 3(0)/4 = 0
therefore
(f/g)(0) = 1 / 0 = undefined
Answers
Let us assume the number of friends Sumalee has = x
Then
2x + 8 = 40
2x = 40 -8
2x = 32
x = 32/2
x = 16
So Sumalee has 16 friends. There are numerous ways to get to the answer that is required to be found. This is the easiest and the shortest method. Hope i helped you.
40 - 8 = 32
Now we will divide to see how many friends she has.
32 ÷ 2 = 16
Check your work:-
16 × 2 = 32
So, she has 16 Friends.
Hope i helped ya!!!!!!!!!!!!!
Its formula
etc.
(30 pts)
Answers
Answer:
function
A set of ordered pairs where each first element is paired with one and only one second element and no element in either pair is without a partner.
Step-by-step explanation:
Question 1: Calculate the slope, x-intercept and y-intercept of a linear equation, f(x) = 5x + 4 ?
Solution:
Given,
f(x) = 5x + 4
The general form of a linear equation is,
f(x) = mx + c
So,
Slope = m = 5
Substitute f(x) = 0,
0 = 5x + 4
5x = -4
x = −45
The x-intercept is (−45, 0)
Substitute x = 0,
f(x) = 5(0) + 4
f(x) = 0 + 4
f(x) = 4
The y-intercept is (0,4)
Answer:
function junction
Step-by-step explanation:
Answers
Answer:
The expression
Step-by-step explanation: