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3 years ago

Can someone help me I’ll give you that little brain crown thing !!

Mathematics

2 answers:

kati45 [8]3 years ago

5 0

5+4b≥32

7 Packages of bracelets.

Solve It

5+4b≥32

subtract 5 from both sides

4b≥27

divide 4 on both sides

b≥6.75

Since you can't buy a half packet you round up to 7

can I have the brain crown thing

liubo4ka [24]3 years ago

4 0

Answer: yes

Step-by-step explanation:

32-5 is 17 4 times 5 is 20, she will have 3 left over.

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I dont know the x of 30-2x=22

zloy xaker [14]

Answer:

Step-by-step explanation:

30-22=2x

8=2x

8/2=x

3 0

2 years ago

Read 2 more answers

A sphere is inscribed in a cube with a surface area of 216 square centimeters. What is the volume of the sphere

pentagon [3]

Answer:

$V=298.5cm^3$

Step-by-step explanation:

To find the volume of the sphere we need to know its radius.

And the radius can be found with the information we have about the surface area.

The formula for the surface area is as follows:

$SA=4\pi r^2$

from this formula we clear the radius r:

$r^2=\frac{SA}{4\pi}\\ \\r=\sqrt{\frac{SA}{4\pi} }$

and we substitute the known value of the surface area, and also the value of $\pi$ :

$r=\sqrt{\frac{216cm^2}{4(3.1416)} }\\ \\r=\sqrt{\frac{216cm^2}{12.5664} }\\ \\r=\sqrt{17.1887cm^2}\\ \\r=4.146cm$

and now that we know the radius we find the volume:

$V=\frac{4\pi r^3}{3} \\\\V=\frac{4(3.1416)(4.146cm)^3}{3}\\ \\V=\frac{895.521cm^3}{3}\\ \\V=298.5cm^3$

the volume of the sphere is $298.5cm^3$

7 0

2 years ago

Sally painted a picture that has an area of 480 square inches. The length of the painting is 1 1/5 as long as it is wide. What a

marishachu [46]

So Length * Width = 480 in. sq.
L=1 1/5 or 1.2W
substitute the L for 1.2W
1.2W*W=480 in sq
divide both sides by 1.2
w*w= 400
W²=400
square root of both sides
Width = 20 inches
Length= (1.2width) or (20*1.2)
Length=24 inches

6 0

3 years ago

What two numbers can you add to get 24 and multiply to get 45

brilliants [131]

Is it 22.5 b/c 22.5 *2 = 45 and 22.5 +22.5= 45. or do u mean both numbers have to be the same

6 0

3 years ago

Help me i don'tunderstand please

PIT_PIT [208]

Step-by-step explanation:

using SOH CAH TOA.

h=3.46 and b=4.42

4 0

2 years ago