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vekshin1
4 years ago
15

What is 12.3 -(-9.6) =12.3 + 9.6 simplified?

Mathematics
1 answer:
BlackZzzverrR [31]4 years ago
4 0

Answer:

Step-by-step explanation:

12.3 + 9.6 = 21.9

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What is the value of the fourth term in a geometric sequence for which a1=15 and r=1/3
kogti [31]

Formula: an = a1(r)^n-1

n = term number

a1 = first term

r = rate

Plug our values in:

n = 4

a1 = 15

r = 1/3

a4 = 15(1/3)^4-1

a4 = 15(1/3)^3

a4 = 15(1/27)

a4 = 0.5555555556

a4 = 0.6 to the nearest tenth

5 0
4 years ago
Mario ran a race in 24 minutes. Express Mario's time in terms of hours.
GarryVolchara [31]
Close to 1/4 of an hour
7 0
3 years ago
GIVING BRAINLIEST Write a proportion that could be used to solve for each variable. Then solve. 16 walls in 40 hours 3 walls in
soldi70 [24.7K]

The proportion that could be used to solve for the variable is \frac{16}{40}=\frac{3}{h} ; h = 7.5 ⇒ answer b

Step-by-step explanation:

A proportional relationship: one variable is always a constant value times the other, that constant is called the constant of proportionality

  • y = k x is the equation of the proportional relationship
  • We can write the proportional relationship in the form \frac{y_{1}}{x_{1}}=\frac{y_{2}}{x_{2}}=k

The number of walls and the number of hours are increased or decreased together

∴ The number of walls and the number of hours are proportion

∵ 16 walls in 40 hours

∵ 3 walls in h hours

- By using the second rule above

∴ \frac{16}{40}=\frac{3}{h}

The proportion that could be used to solve for the variable is  \frac{16}{40}=\frac{3}{h}

Let us solve it to find h

∵  \frac{16}{40}=\frac{3}{h}

- By using cross multiplication

∴ 16 × h = 3 × 40

∴ 16 h = 120

- Divide both sides by 16

∴ h = 7.5

The value of h is 7.5 hours

Learn more:

You can learn more about the proportion in brainly.com/question/10708697

#LearnwithBrainly

4 0
3 years ago
Weekly demand for a particular item averages 30 units, with a standard deviation of 4. This item is managed with a fixed-order-i
aivan3 [116]

Answer:

(B)93

Explanation:

Since we are using a fixed-order-interval model,

The Amount to Order=Expected Demand During protection Interval+Safety Stock-Amount at Hand

=d(OI+LT)+z\sigma_{d}\sqrt{OI+LT}-A

Where:  

d=weekly demand

OI=Order Interval

LT=Lead Time

z=Standard Deviation of Desired Service Level

\sigma_{d}=Standard Deviation of weekly Demand

A= Amount at Hand

=d(OI+LT)+z\sigma_{d}\sqrt{OI+LT}-A

[30(3 + 1)] + [1.964*4*\sqrt{3 + 1} - 43

= 120 + 15.712 - 43 = 92.7

4 0
3 years ago
The radius of a cylindrical construction pipe is 1.5ft. If the pipe is 12 ft long, what is its volume?
yulyashka [42]

Answer:

approx 84.82 cubic. ft

Step-by-step explanation:

volume of cylinder =

volume = \pi {r}^{2} h

= 3.14 * (1.5)(1.5) * (12)

= 3.14 * 2.25 * 12

= 7.065 * 12

= approx 84.8 cubic. ft

8 0
3 years ago
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