1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MrRissso [65]
3 years ago
10

3 3/4 / 2/5 = what? I'm struggling

Mathematics
1 answer:
Soloha48 [4]3 years ago
3 0

Lets convert 3 3/4 into improper fraction first.

3\frac{3}{4}  =  \frac{3 \times 4 + 3}{4}  \\  =  \frac{15}{4}

\frac{3\frac{3}{4} }{ \frac{2}{5} }  \\  =  \frac{15}{4}  \div  \frac{2}{5} \\  =  \frac{15}{4}   \times  \frac{5}{2}  \\  =  \frac{75}{6}  \\  =  \frac{25}{2}  \: or12  \frac{1}{2} or \: 12.5

You might be interested in
Please someone answer this!
Kaylis [27]

Answer: 108$

Step-by-step explanation:

5 0
3 years ago
The cosine of the complimentary angle to 38°
aleksandrvk [35]

Answer:

D 0.62

Step-by-step explanation:

90-38 = 52

cos (52) = .62

8 0
3 years ago
Volume finding help volume
riadik2000 [5.3K]
1. This is a rectangular prism (box), therefore its volume is written as V = <em>w l h</em> where <em>w</em> is the width, <em>l</em> is the length, and <em>h </em>is the height.
<em>w</em> = 2 1/4 (2.25) m
<em>l</em> = 3 m
<em>h</em> = 8 1/4 (8.25) m
V = <em>w l h</em>
V = 2.25×3×8.25
V = 55.69 m³

2. This is a cube, as shown by the measurements all being equal. Its volume is written as V = <em>a</em><em>³</em> where <em>a</em> is the length of any side.
<em>a</em> = 3 1/4 (3.25) in
V = <em>a</em><em>³</em>
V = 3.25³
V = 33.33 in³

# 3 through 8 are all rectangular prisms (boxes), whose volume is written as V =  <em>w l h</em>

3.
<em>w </em>= 2 1/3 (2.33) ft
<em>l </em>= 9 1/4 (9.25) ft
<em>h</em> = 4 ft
V = <em>w l h</em>
V = 2.33×9.25×4
V = 86.21 ft³

4.
<em>w </em>= 3.7 in
<em>l</em> = 10.3 in<em>
h</em><em> </em>= 2.4 in<em>
</em>V = <em>w l h</em>
V = 3.7×10.3×2.4
V = 91.46 in³

5.
<em>w</em> = 4 in
<em>l</em> = 7 in
<em>h</em> = 5 in
V = <em>w l h</em>
V = 4×7×5
V = 140 in³

6.
<em>w</em> = 5 in
<em>l</em> = 3.6 in
<em>h</em> = 4.2 in
V = <em>w l h</em>
V = 5×3.6×4.2
V = 75.6 in³

7.
<em>w</em> = 2.2 cm
<em>l</em> = 6.6 cm
<em>h</em> = 3 cm
V = <em>w l h</em>
V = 2.2×6.6×3
V = 43.56 cm³

8.
<em>w</em> = 2.1 m
<em>l</em> = 4.2 m
<em>h</em> = 12.2 m
V = <em>w l h</em>
V = 2.1×4.2×12.2
V = 107.60 m³

9. This is a cube again, therefore its volume is written as V = <em>a²</em> where <em>a</em> is the length of any side.
<em>a</em> = 2.3 ft
V = <em>a³</em>
V = 2.3³
V = 12.17 ft³

10. A rectangular box (prism) 12.7 cm long, 7.1 cm wide, and 3 cm high.
V = <em>w l h</em>
V = 7.1×12.7×3
V = 270.51 cubic cm (cm³)

11. A cube 11 1/4 (11.25) inches long.
V = <em>a³</em>
V = 11.25³
V = 1423.83 cubic inches (in³)

12. A rectangular box (prism) 9.8 feet long, 4 feet wide, and 2 1/2 (2.5) feet high.
V = <em>w l h</em>
V = 4×9.8×2.5
V = 98 cubic feet (ft³)

Use the formula V=bh or V=l×w×h (V = <em>w l h) </em>to find the volume of each.

1. Area of base: 8 × 3 = <u /><u />24 square units
Height: 4 1/2 (4.25) units
V = bh
V = 24×4.25
V = 102 cubic units

2. V = l×w×h
V = bh
V = 3.6×5×4.2
V = 75.6 cubic inches

3. V = bh
b = lw
l = 4 ft
w = 2 1/2 (2.5) ft
b = 4×2.5
b = 10
h = 7
V = bh
V = 10×7
V = 70 cubic feet

4. A rectangular box 6.8 feet long, 4 feet wide, and 2 feet high.
(is it just me, or does that one sound like the dimensions of a coffin???)
V = l×w×h
V = 6.8×4×2
V = 54.4 cubic feet

5. A cube 3 1/2 (3.5) inches long. Draw a picture and label it. Tell how it can help you find the volume.
V = bh
b = l×w
b = 3.5×3.5
b = 12.25
h = 3.5
V = 12.25×3.5
V = 42.88 cubic inches
Drawing attached.

7 0
3 years ago
I haven't been great at this subject so can you please help?
balandron [24]
No sorry:( hope someone helps
4 0
3 years ago
Read 2 more answers
How would you solve the following problem?
seraphim [82]
The answer should be 1/9y^4
5 0
3 years ago
Other questions:
  • om has $10 that he wants to use to buy pens and pencils. However, he does not want to buy more pens than pencils. A pen costs $3
    13·2 answers
  • Helppp mathhhhhhhhhhhhh
    5·1 answer
  • If 2l-18=5l+18, what is the value of t?
    8·1 answer
  • What is the slope of this graph? <br><br> A:-3<br> B:-1/3<br> C:1/3<br> D:3
    9·1 answer
  • The line corresponding to y - 4 = 0 It has the following characteristic:
    15·2 answers
  • Plz help<br><br> Simplify 6(x + 4)
    7·2 answers
  • What is 7x2? Please help! I need it!
    11·1 answer
  • Help pls. I have been stuck on this for 15 minutes now.​
    12·2 answers
  • 2. The dimensions of a rectangle are its length and width. For example, the enclosure for 2 monkeys is 36 square feet and could
    11·1 answer
  • HELPPP LAST ATTEMPT!!
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!