Average score in the first 7 tests is 82. How much do you need to score to get an average of 85?
X+X+X+X+X+X+X/7=82
X+X+X+X+X+X+X+X/8=85
X+X+X+X+X+X+X=574
X+X+X+X+X+X+X+X=680
X=106
You need to score 106
Hope this helps :D
solve 2x + 6 = x - 4
Answer:
x=-10
Step-by-step explanation:
Move like terms to the same side
2x+6-x=-4
x=-4-6
x=-10
2x+6=x-4
subtract x from both sides
x+6=4
subtract 6 from both sides
x=-10
hope this helps!
find the sum of the first 50 terms -6, -2, 2, 6,…
Answer:
4600
Step-by-step explanation:
Write the slope-intercept form of the equation of a line with a slope of −58 that passes through the point (−14,6).
Answer:58x=-2
Step-by-step explanation:
Question on pictures ^^^^^^^^
Answer:
y=35 x=145
Step-by-step explanation:
y is equivalent to 35
180-35=145
Answer:
x = 145
y = 35
Step-by-step explanation:
x and the 35 degree angle are supplementary angles, so x + 35 = 180.
solve for x, x = 145. the 35-degree angle and angle Y are corresponding angles, so the value of y will be 35.
The governments in two countries, Statland and Statopia, are proposing to change their national currencies to the Statto. The proportion of support for such a change within the population in Statland and Statopia are modelled by random variables X and Y respectively. It is thought that the joint density function for the two variables is of the formf(x,y)=(2/5)*(2x+3y) for 0f(x,y)=0 elsewherePart b) the probability that changing to the Statto has the support of more than half the population in each country. 15/30Part c) the marginal density of the support for the Statto in Statland evaluated at the point X=1/2. is 1Part d) the marginal density of the support for the Statto in Statland evaluated at the point Y=1/2. is 1Part e) Find the conditional density of the support for the Statto in Statland given the support of a third of the population in Statopia. Evaluate this density at the point X=1/2
Answer:
Step-by-step explanation:
what year r u in this is soo hard gtg byeee
Mr. Florean opened an account with deposit of $5,000. The account earned 7.5% annual simple interest. He did not make any additional deposits or withdrawals. After some time, the balance of the account was $6,500. How many years did it take for mr.Flores to have a balance of $6,500?
Answer:
4 years
Step-by-step explanation:
The simple interest = $6,500 - $5,000 = $1500
From the formula for simple interest;
I=PRT/100
T= 100 I/PR
T= 100 × 1500/5000 × 7.5
T= 150000/37500
T= 4 years
PLEASSEEEEE HELP ASAPPPPPPP A store owner is tracking inventory based on sales
during the week. The store owner notices that the
number of gallon milk jugs remaining follows a
pattern. The equation N= 50 - 7d represents the
number of gallon milk jugs, N, remaining d days
into the week, at the end of each day.
Which statement is true?
a. The store owner begins the week with 50
gallon milk jugs and adds an average of 7
gallon milk jugs each day,
b. The store owner begins the week with 50
gallon milk jugs and sells an average of 7
gallon milk jugs each day.
c. The store owner begins the week with 57
gallon milk jugs and adds an average of 7
gallon milk jugs each day.
d. The store owner begins the week with 57
gallon milk jugs and sells an average of 7
gallon milk jugs each day.
Answer:
b) The store owner begins the week with 50 gallon milk jugs and sells an average of 7 gallon milk jugs each day.
laptop has a listed price of $879.95 before tax. If the sales tax rate is 8.5%, find the total cost of the laptop with sales tax included Round your answer to the nearest cent, as necessary.
Answer:
It would be $954.75
Step-by-step explanation:
f(x) = (x + 2)/(x2 - 16)
Hawa can walk 2.5 miles in 40 minutes. At this rate, how far can she walk in 1 hour?
1 hour = 60 minutes
40 / 2.5 = 16
Hawa can walk ________ in 1 hour.
Answer:
3.75
Step-by-step explanation:
Hawa can walk 1 mile every 16 minutes so 60/16=3.75 :) hope this helped
PLEASE HELP ME ASAP!!
Which statement is true about the sign of a quotient? Check all that apply.
A. The quotient of two negative fractions is negative.
B. The quotient of one negative fraction and one positive fraction is negative.
C. The quotient of two positive fractions is negative.
D. The quotient of two positive fractions is positive.
E. The rules for the signs of quotients are the same as the rules for the signs of products.
Answer:
Step-by-step explanation:
B, D, E
because you have a quotient when you divide and has the same rules as multiplication
please hurry possible brainliest too
Write a function rule for our pattern.
You may use f(x) or A(N) for the explicit formula.
84, 90, 96, 102, 108,
Answer:
84+6x=y or it can be 78+6x=y
Step-by-step explanation:
use the lists of common factors to answer the question
FACTORS OF 9: 1,3,9
FACTORS OF 15: 1,3,5,15
FACTORS OF 21: 1,3,7,21
FACTORS OF 40: 1,2,4,5,10,20,40
Which pairs of numbers are relatively prime? check all that apply.
9 and 15
9 and 40
9 and 21
15 and 21
21 and 40
Answer:
9 and 40
21 and 40
Step-by-step explanation:
I just did the test on edg. 2020
Factors of 9:
1,3,9
Factors of 15:
1,3,5,15
Factors of 21:
1,3,7,21
Factors of 40:
1,2,4,5,8,10,20,40
We have to find the pairs of numbers which are relatively prime.
Relatively prime number: The numbers in which gcd 1 are called relative prime numbers.
a.9 and 15
GCD(9,15)=3
9 and 15 are not relatively prime.
b.9 and 40
GCD(9,40)=1
Hence, 9 and 40 are relatively prime.
c.9 and 21
GCD(9,21)=3
9 and 21 are not relatively prime.
d.15 and 21
GCD(15,21)=3
15 and 21 are not relatively prime.
e.21 and 40
GCD(21,40)=1
21 and 40 are relatively prime.
pls help im having so much trouble with this along with my friends :(
Can someone one at least help me with Part A?
How many 5-digit personal identification numbers are possible if the number cannot contain a
zero?
Answer:
59049 digits
Step-by-step explanation:
Given
Digits = 0 to 9
Required
Determine number of 5 digit pins that must not contain 0
There are 10 digits.
Since the pin must not contain 0, there are 9 digits left to select from.
The question didn't state that a digit can not be repeated, so I'll assume that repetition of digit is allowed.
The 1st digit of the 5 could be any of the 9 digits
The 2nd could be any of the 9 digits
The 3rd could be any of the 9 digits
The 4th could be any of the 9 digits
The 5th could be any of the 9 digits
Hence, number of selection is calculated as this:
Selection = 9 * 9 * 9 * 9 * 9
Selection = 59049
Can you give me the answers from 1 to 6 and tell me how you get the answers please
Answer:
1. Y = 2, 1, 4, 7, 10
2. Y = -12, -8, -4, 0, 4
3. Y = -7, -5, -3, -1, 1
Step-by-step explanation:
all of the numbers in the x value you just substitute in the x place in problem
1. Y = 3x + 4
x: -2, -1, 0, 1, 2
Y = 3(-2) + 4
Y = -6 + 4
Y = -2
You then have:
x: -2, -1, 0, 1, 2
y: -2,
Y = 3(-1) + 4
Y = -3 + 4
Y = 1
You then have:
x: -2, -1, 0, 1, 2
y: -2, 1
just continue substituting each x variable into the x place to get your y variable.
I know you asked for the first 6 but I feel like if I just give you the answers to all of them you will not learn it, so I only gave the first 3, and I recommend trying to do the last 3 yourself. I'm sure you'll do well. <3
Use the properties of exponents to write an equivalent expression for (3 x 6)2
Answer:
The answer is 324
Step-by-step explanation:
I don't know if it's the correct answer but I hope it helps
pls mark me as brainliest
Please at least help me cause I have no idea
Solve for v2
[tex]a \: ave = \frac{v2 - v1}{t2 - t1} [/tex]
Answer:
Solving the given formula for v2 gives us:
[tex]a(t_2-t_1)+v_1 = v_2[/tex]
Step-by-step explanation:
Solving an equation for a particular variable means that the variable has to be isolated on one side of the equation.
Given equation is:
[tex]a = \frac{v_2-v_1}{t_2-t_1}[/tex]
Multiplying both sides by t2-t1
[tex](t_2-t_1) . a = \frac{v_2-v_1}{t_2-t_1} . (t_2-t_1)\\a(t_2-t_1) = v_2-v_1[/tex]
Adding v1 to both sides of the equation
[tex]a(t_2-t_1)+v_1 = v_2-v_1+v_1\\a(t_2-t_1)+v_1 = v_2[/tex]
Hence,
Solving the given formula for v2 gives us:
[tex]a(t_2-t_1)+v_1 = v_2[/tex]
The table shows the battery life of four different mobile phones.
Answer:
phone B
Step-by-step explanation:
Whats 1+1 please help Idk What to do im gona fail. please Help IM timed
Answer:
11
Step-by-step explanation:
1+1=11
Answer:
2 because its simple
List the 5 Earth's sphere.
Answer:
geosphere, hydrosphere, atmosphere, cryosphere, biosphere.
Please please help thanks
What is the x-intercept for the equation? 3x + 6y = 24
-4
4.
8
-8
Answer:8
Step-by-step explanation: plug in 0 for y then solve
Write −0.85 as a fraction in simplest form.
The times for Erin’s five laps around the track were 56.6 seconds, 57.9 seconds, 57.5 seconds, 65.3 seconds, and 65.7 seconds. Using rounding to the nearest whole second as the only estimation technique, what is the total estimated time for Erin’s five laps in seconds?
300
303
304
320
Answer:
the correct answer should be c, 304
Answer:
c or 304
Step-by-step explanation:
i took the quiz on edge
Jared just started a Tennis School. He found an online store selling racquets for $30 each. Write the rule to represent how much Jared spent on a set of racquets for his school.
5. Which of the following lists the integers in order from least to greatest?
20, -6, 2, 1, -13
-13, -6, 2, 1, 20
1, 2, -6, -13, 20
-13, -6, 1, 2, 20
Answer:
its D. because
Step-by-step explanation:
because -13 is smaller than -6 and thats smaller than 1 and thats smaller than 2 thats smaller than 20