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aleksley [76]
3 years ago
5

What value of n makes this equation true?

Mathematics
2 answers:
anastassius [24]3 years ago
4 0

Answer:

B). n = 1.40

Step-by-step explanation:

0.7n + 0.8n = 2.1

(0.7n + 0.8n) = 2.1

1.5n = 2.1

/1.5 /1.5

n = 1.40

hope this helped!

Agata [3.3K]3 years ago
3 0

0.7n+0.8n=2.1

1.5n=2.1

n=1.4

Therefore, the answer is B.

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Point P is shown on the number line below.
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Answer:

I don't see the number line

Step-by-step explanation:

i would love to help you out, but I don't see the number line I'm supposed to be referencing.

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3 years ago
Next question<br> what is 5+5x245x100-150x10000000000?
barxatty [35]

Answer:

cant get an exact answer this is the best ur gonna get 3.675e+17

Step-by-step explanation:

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What is the smallest number with the factors 1,2,3,4, and 5? What is the special name for it?
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To find LCM
factor and eliminate ones already represented
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The probability that a student at your school takes Drivers Education and Spanish is 87/1000. The probability that a student tak
Gnom [1K]
Let
x---------> <span>The probability that a student takes Spanish 
y-------> </span><span>the probability that a student takes Drivers Education given that the Student is taking Spanish
z-------> </span><span>The probability that a student at school takes Drivers Education and Spanish 

we know that
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y=z/x
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5 0
4 years ago
Read 2 more answers
Delia is a graphic designer who charges an hourly rate. She made the graph to show her total earnings for various numbers of hou
stich3 [128]

Answer:

approximately 7 hours

see the explanation

Step-by-step explanation:

The picture of the question in the attached figure

Let

x ----> the time worked in hours

y ----> the amount earning in dollars

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=\frac{y}{x} or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line <u><em>and the line passes through the origin</em></u>

so

In this problem we have a proportional relationship

step 1

Find approximately how many hours would it take Delia to earn $250 ?

Looking at the graph

For y=$250 The value of x is approximately 7 hours

see the attached figure N 2

step 2

Find the exact value

from the graph take the point (5,175)

Find the value of k

k=\frac{y}{x} ----> k=\frac{175}{5}=\$35\ per\ hour

The linear equation is

y=35x

For y=$250

substitute

250=35x

solve for x

x=7.14\ hours

8 0
3 years ago
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