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Setler79 [48]
3 years ago
6

Which equation has the same unknown value as 405 ÷ 15 = ? A 405 × ? = 15 B ? ÷ 405 = 15 C 15 × ? = 405 D ? ÷15 = 405

Mathematics
2 answers:
Roman55 [17]3 years ago
5 0
Its C. 15 x ? = 405
The question is kind of like writing a fact family.
You need to find the same unknown number that belongs in the question mark in the rest of them.
So since 405 ÷ 15 = 27,
C. 15 x 27 = 405
? = 27
(It also needs to make sense :P)
fgiga [73]3 years ago
4 0
C bc you can multiply 15 by ? To get the same answer
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#9 i need help it would really be appreciated
son4ous [18]
For number 9, you know that it makes 40 copies every five minutes. All you have to do is divide 40 by 5.

40 ÷ 5 = 8

It makes 8 copies every minute. 

Your chart can also help you check your answer. It says that it makes 96 copies every 12 minutes and it makes 104 copies every 13 minutes. So multiply 8 by 12 to check it and 8 by 13. 

8 • 12 = 96
8 • 13 = 104

Since those answers match up with the chart, it must be correct.

The photocopier makes 8 copies every minute. Hope that helps!


4 0
3 years ago
Suppose a population of deer in the state is 10, 289 and is growing 1% each year. Predict the population after 5 years
eimsori [14]

Answer: the population after 5 years is 10814

Step-by-step explanation:

The population growth of the deer is exponential. We would apply the formula for determining exponential growth which is expressed as

A = P(1 + r)^t

Where

A represents the population after t years.

n represents the period of growth

t represents the number of years.

P represents the initial population.

r represents rate of growth.

From the information given,

P = 10289

r = 1% = 1/100 = 0.01,

t = 5 years

Therefore,

A = 10289(1 + 0.01)^5

A = 10289(1.01)^5

A = 10814

3 0
3 years ago
The patio shown has an area of 116 square feet. What is the value of h?
Oduvanchick [21]

Answer:

8 ft

Step-by-step explanation:

if we made this into a rectangle (pretend you chop off one of the triangles and glue it to the other one to make a long rectangle), the length would be 10+4.5, or 14.5. to find what h is, we can just divide 116 by 14.5. our answer is 8.

8 0
3 years ago
Simplify using order of operations(PEMDAS):<br><br>(2^3x6)-3^2
Vladimir [108]
(2^3 \cdot 6) - 3^2=(8 \cdot 6)-9=48-9=39
8 0
3 years ago
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How many feet of fencing is needed to fence in a 130 ft by 225 ft area?
yaroslaw [1]
You need 710 ft of fencing.
6 0
3 years ago
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