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3 years ago

Need help asapp I'll brainlist u once u finish !!

Mathematics

2 answers:

Musya8 [376]3 years ago

8 0

Answer:

Step-by-step explanation:

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Rzqust [24]3 years ago

5 0

Answer:

-3*-6*2^2+1

18*4+1

72+1

Step-by-step explanation:

2(5*-6*2-3)

2(-30*-1).

2*30

4*-6^2*2+2/10

4*36*2+2/10

4*72+2/10

288+2/10

290/10

9(-6-2^2)/6

9(-6-4)/6

9*10/6

90/6

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Maggie's brother is 7 years younger than four times her age. The sum of their ages is 48. How old is Maggie? Maggie is years old

algol13

Answer:

11 years old

Step-by-step explanation:

Maggie's age is x

Maggie's brother = 4x - 7

The sum is 48

x + 4x - 7 = 48

5x - 7 = 48

5x = 55

x = 11

4 0

4 years ago

The radius of cylindrical water tank is 4.5 ft, and its height 6 ft, What is the volume of the tank?

NeTakaya

Answer:

$Volume=381.7 \,ft^3$

Step-by-step explanation:

Use the formula for the volume of a cylinder:

Volume= B times height

Being "B" the area of the cylinder's base (a circle of radius 4.5 ft.

Therefore the area of the base is:

$Area=\pi R^2 = \pi (4.5\,ft)^2=63.617\,ft^2$

So the volume of the cylinder is:

$Volume=B\,*\,h = 63.617\,* 6\,ft^3=381.7 \,ft^3$

7 0

3 years ago

An 8 1/2 ounce bottle costs $0.99. Calculate the cost per ounce

icang [17]

Answer:

Step-by-step explanation: Part 1) The units rates are

Part 2) The best buy is the size 48 1/4 we know that To find out the unit rate divide the total cost by the total volume

Part 1) Calculate the unit rate for each size

case A) we have 8 1/2 ounce bottle costs $0.99 Convert mixed number to an improper fraction

Find the unit rate

case B) we have

18 2/2 oz. bottle costs $1.49

Convert mixed number

Find the unit rate

case C) we have

48 1/4 oz. carton costs $2.49

Convert mixed number to an improper fraction

Find the unit rate

case D) we have

64 3/4 oz. carton costs $3.75

Convert mixed number to an improper fraction

Find the unit rate

Part 2) which size is the best buy

we know that

The best buy is the one with the smallest unit rate

The best buy is the size 48 1/4 oz

5 0

3 years ago

Is the equation 2x + 5 = 1 true, false, or open? Explain.

4vir4ik [10]

Answer:

open

Step-by-step explanation:

beacause

2x+5=1

2x=1-5

2x=-4

x=-4/2

x-2 so its open

6 0

3 years ago

Zoe has a collection of 78 movies costing $29.99 each. How much did so she spend on all her movies?

kozerog [31]

Zoe spent $2339.22 on all of the movies

3 0

3 years ago

Read 2 more answers

Need help asapp I'll brainlist u once u finish !!​

Need help asapp I'll brainlist u once u finish !!