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umka21 [38]
3 years ago
10

Marta has 1 cubic yard of sand to build a wall in the shape of a rectangular prism that is 20 inches tall and 5 inches wide. To

the nearest foot, what will be the length of this wall?
Mathematics
2 answers:
DanielleElmas [232]3 years ago
7 0

Answer:

466,56 inches

Step-by-step explanation:

1 yard = 36 inches

1 cubic yard = 36*36*36 = 46656 cubic inches

46656 = 20*5*l => l = 46656/100 = 466, 56 inches

Lana71 [14]3 years ago
3 0

Answer:

117 ft

Step-by-step explanation:

1 yd³ = 36³ in³ = 46656 in³

Volume = ⅓ (5 × length) × 20

46656 = ⅓ (5 × length) × 20

length = 1399.68 in

1399.68/12 ft

= 116.64 ft

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A teacher has been given £35 to spend on pencils and rulers.
SSSSS [86.1K]
Packet of 12 pencils = p
Packet of 30 rulers = r

p = £2.15
r = £6.00

£35 = 4r + xp
£35 = 4(£6.00) + x(£2.15)
£35 = £24 + £2.15x
£11 = £2.15x
x = 5.12

Since she can buy 5.12 packets of pencils, it is equal to 5 packets of pencils.
3 0
2 years ago
For the data set 6, 5, 10, 11, 13, the mean, x, is 9. What is the standard deviation?
Salsk061 [2.6K]

Answer:

your answer will be 3.4

Step-by-step explanation:

n=number of terms

{6,5,10,11,13}=5

also ∑(x-x)^2=46

S=\sqrt{\frac{1}{5-1} *46} =

\sqrt{\frac{46}{4} }=\sqrt{11.5}  \\\\S=3.4

hope it helps

have a great day!!

3 0
3 years ago
Read 2 more answers
Write the equation in point-slope form that passes through the point (1,3) and has a slope of 1/2
Assoli18 [71]

Answer:

bbbb

Step-by-step explanation:

4 0
3 years ago
Graph the equation by first finding the​ x- and​y-intercepts.
dalvyx [7]

Answer:

x-intercept: (2,0)

y-intercept: (0,3)

Step-by-step explanation:

We are asked to graph our given equation \frac{1}{2}x+\frac{1}{3}y=1.

To find x-intercept, we will substitute y=0 in our given equation.

\frac{1}{2}x+\frac{1}{3}(0)=1

\frac{1}{2}x+0=1

2*\frac{1}{2}x=2*1

x=2

Therefore, the x-intercept is (2,0).

To find y-intercept, we will substitute x=0 in our given equation.

\frac{1}{2}(0)+\frac{1}{3}y=1

0+\frac{1}{3}y=1

3*\frac{1}{3}y=3*1

y=3

Therefore, the y-intercept is (0,3).

Upon connecting these two points, we will get our required graph as shown below.

8 0
3 years ago
How do I work out the answer 4+1/4x+3=10
Rzqust [24]

Answer:

I believe it would be 5/7x=12

Step-by-step explanation:

First I took the 4 and 1 and added that give me 5 after, I did 4x plus 3 and that’s 7 so I added on the x and last I put equal 12 because if I add that all up that is 12

3 0
3 years ago
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