MATHEMATICS MIDDLE SCHOOL

Help please pleaseeee​
help please pleaseeee​ - 1

Answers

Answer 1
Answer:

Answer:

6.08 kg bag unit price: $1.72

7.48 kg bag unit price: $1.86

6.08 kg bag is the better buy

Step-by-step explanation:

To find unit price, divide the price by the amount. 10.47 divided 6.08 equals 1.7203947. Round it to the nearest cent to get 1.72. So, the unit price for the first bag is $1.72. Next divide 13.88/7.48 to get 1.85561. Round it to the nearest cent to get 1.86. So, the unit price for the second bag is $1.86 per kg. The better buy is the cheaper one, so the 6.08 kg bag is a better deal. Hope this helped!

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Y = x2 - x - 7. what is axis of symmetry​

Answers

Answer:

Step-by-step explanation:

To find the axis of symmetry, you use the equation opposite of b, divided by 2(a). Your a will always be the first number, your b your second, and c your third. So your equation would be positive x/2(x^2). I'll let you figure this out on your own.

What is the median of the data? 12, 17, 16, 10, 20, 13, 14, 14, 12, 12, 19, 18

Answers

10, 12, 12, 12, 13, 14, 14, 16, 17, 18, 19, 20

median = 14

55% as a fraction or mixed number in simplest form

Answers

55/100 would be the easiest way to express 55% as a fraction.
55/100 would be as a fraction then you would simpilfy it to 11/20.

Solve -17 + n/5 = 33.

Answers

-17 + n/5 = 33

First, we can start out by regrouping our terms. This will switch our fraction and number around and also make the original addition to subtraction.
(n)/(5) - 17 = 33

Second, we can start out our goal by trying to get the variable (n) on one side by itself and to equal something. Let's begin by adding 17 to each side of the problem.
(n)/(5) = 33 + 17

Third, we can now add the numbers on the right side of our problem. Simple. Add 33 + 17 to get 50.
(n)/(5) = 50

Fourth, we now have to multiply both sides by 5. Why? We are getting rid of the fraction so that the variable can become by itself.
n = 50 * 5

Fifth, our last step is to multiply 50 × 5. Use a calculator, long multiplication, etc. 50 × 5 = 250. 
n = 250

Answer: \fbox {n = 250}
-17 + n/5 = 33
+17 +17
n/5 = 50

5(n/5) = (50)5
n = 250


→ n will equal 250 and to check your work look below.

-17 + (250)/5 = 33
-17 + 50 = 33
33 = 33

1. Pizza Paradise delivers pizza in the local neighborhood using bicycles. The bike delivery person, Tommy, uses a bike whose wheels have a radius of 13 in. Tommy’s average biking speed is 15 mph. How many minutes would it take for Tommy to deliver a pizza to a house that is 4 mi away, and how many revolutions of his bike wheels would this take? (A revolution is one full wheel turn.) Use 3.14 to approximate pi. Round to the nearest whole number.

Answers

we need to find circumference of wheele

C=2pir
r=13
C=2pi13
C=26pi
aprox pi=3.14
C=81.64 in


15 miles in 1 hour
4 miles in x hour
15/1=4/x
times x both sides
15x=4
divide 15 both sides
x=0.26666666 hour
times 60 mins
x=16 minutes


how many inches is 4 miles
1miles=5280 feet
1foot=12 inches
5280 tiems 12=63360 inches

circumferenc times number of rotations=63360
81.64 times number=62260
divide both sids by 81.64
number of rotations=776.09...
round
776 rotations



16 minutes and 776 rotations 

Anita grew a garden with 3/4 of the area for vegetables. In the vegetable section, 1/6 of the area is carrots. What fraction of the total garden is carrots?

Answers

3/4 of the area for vegetables, and 1/6 of its area is carrots.
So,
3/4 x 1/6 = 3/24
Simplify 3/24 by 3 will be
1/8
1/8 of the area of the garden is covered by carrots
3/4 of the garden is veggies
1/6 of the veggies are carrots

3/4 x 1/6 = 3/24 = 1/8

1/8 of the whole garden is carrots
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