- What value of x makes this equation true?
0.5x -8= 0.2x + 7

A researcher predicts that listening to music while solving math problems willmake a particular brain area more active. To test this, a research participant hasher brain scanned while listening to music and solving math problems, and thebrain area of interest has a percentage signal change of 58. From many previousstudies with this same math problems procedure (but not listening to music), it isknown that the signal change in this brain area is normally distributed with amean of 35 and a standard deviation of 10.
(a) Using the .01 level, what shouldthe researcher conclude? Solve this problem explicitly using all five steps of hypothesistesting, and illustrate your answer with a sketch showing the comparisondistribution, the cutoff (or cutoffs), and the score of the sample on this distribution.(b) Then explain your answer to someone who has never had a course in statistics(but who is familiar with mean, standard deviation, and Z scores).

Rick has 3 bills and 4 coins in his wallet.the coins and bills total $12.35.Rick has no half-dollars.what coins and bills does Tick have?

Section 3 - Question 24
Maria's internet service costs 14.95 a month for the first 100 hours of usage and 0.50 for each additional hour. This could be written as y = 14.95 +0.50 (1 - 100).
In the equation, what does the represent?
A
the total cost of internet service
B
the cost per month for internet service
С
the number of hours of internet service
D
the number
months of internet service
EVO Illuminate Education Inc
O
hp

what’s the unit rate for 10 1/3 miles per 1/6 hour

Currently, Trevon is three times as old as Janice. In four years, the sum of their ages will be 48. If Janice's
current age is represented by n, which of the following equations could be used to correctly solve for n?

the ordered pair (x,y)=(2,-3) is a solution to which of the following systems of equation

Can someone help me with this question for geometry.

Thanks will mark brainliest

Help.please i will mark brainliest !!

angle 2 and angle 6 are blank angles​

Blank x 0.9 = 0.18 i need help asap

5) A cook wants to make 8 pies. She starts with 18 eggs and has 10 left over. What
equation can be used to find the number of eggs the baker uses in each pie?
Can someone Help me please

Consider the price of a baseball card is $7, and its value increases by 12% each year. What is the value of a?

8 of 10
1
3
Work out the sum of 5 and
10
Give your answer in its simplest form.

show me the venn diagram​

find each sum.
1)-9+(-2)
2)3.2+1.4
3)5.1+(0.7)
4)-2.2+(-3.8)

The temperature in Bloomington on Sunday was 32.6°C. On Monday, the temperature changed by -8.25°C. What was the temperature on Monday?
A.
-40.85°C
B.
-24.35°C
C.
24.35°C
D.
42.25°
Reset Next​

The circle graph shows how the money will be spent for the party.

Food: 30%
Drinks: 20%
Prizes and favors: 35%
Paper productions: 15%




The class has $300 for a party.

How much will be spent on party favors and prizes?

A: $35.00
B: $105.00
C: $195.00
D: $265.00

Evaluate and reduce:
7
3
--
8
16
Enter the number that belongs in the
green box.
[?]
Enter

Juan and Adam both need pens and
batteries. The equation that represents
Juan's purchases is y - 27 - 3x. The
equation that represents Adam's purchases
is y = 17 – x. If y represents the price of the
batteries, and x represents the price of the
pens, what are the prices of the pens and
batteries?
a) pens: $10 batteries: $7
b) pens: $5 batteries: $12
o pens: $7 batteries: $20
d) pens: $12 batteries: $20
e) pens: $5 batteries: $10
go to station 4
go to station 3
go to station 7
go to station 9
go to station 2

what is the sum of -8+6

20 points!!!
Part A: Solve −mk − 120 > 95 for m. Show your work. (4 points)

Part B: Solve 2c − 9f = 45 for f. Show your work. (6 points)

(20 points)

Use the Slope Formula to find the slope of the line with points (1,-4) and (-3,3)

Please solve this system : x+y+z=-3 3y-z+\=4 2x-y-2z=-5

I flew at about 135 mph for about 15 hours how far did I fly?​

I need help dudes... DO THIS ASAP AND I'LL MARK YOU THE BRAINlYLIEST!!!! PLUS this question it due in 20 mins sooo

Alex went to the store and purchased red and blue jelly beans. The ratio of red to blue jelly beans is 3 to 7. If 140 jelly beans were in the bag, how many red jelly beans were in the bag?

URGENT!!!

Item 16
Determine whether there is a proportional relationship between your cousin's age, in years, and your age, in years.




yes

no

What’s the ratio of 240

You would like to make a nutritious meal of eggs, edamame, and elbow macaroni. The meal should provide at least 40 g of carbohydrates, at least 20 g of protein, and no more than 50 g of fat. An egg (one serving) contains 2 g of carbohydrates, 17 g of protein, and 14 g of fat. A serving of edamame contains 12 g of carbohydrates, 12 g of protein, and 6 g of fat. A serving of elbow macaroni contains 43 g of carbohydrates, 8 g of protein, and 1 g of fat. An egg costs $2, a serving of edamame costs $5, and a serving of elbow macaroni costs $3. Formulate a linear optimization model that could be used to determine the number of servings of egg, edamame, and elbow macaroni that should be in the meal in order to meet the nutrition requirements at minimal cost. (You don’t need to find the optimal solution to the model you formulate) ======== In your response please - define decision variables with NUN (Name, Unit, Notation) (e.g. Let E be the number of eggs in the meal) Then provide the mathematical model for the LP problem. - objective function - constraints

Mrs. Perez has 28 students and 5
7
of those students participate in school sports. How many of Mrs. Perez’s students participate in school sports?

A ring-shaped region shown below. Its inner diameter is20 yd. The Width of the ring is 3 yd. Find the area. Of the shaded region.