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3 years ago

Solve for m : -5m + 14 = 9

Mathematics

2 answers:

Eddi Din [679]3 years ago

6 0

wdgsvwrshgsgcAnswer:

Step-by-step explanation:

sadgsd

In-s [12.5K]3 years ago

4 0

M is nothing because -5-14 already equals 9 so it’s either you add the m to the nine or don’t worry about the m

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Simplify the following expression. (10-4i)(4-5i)+(-15+20i)

Vikki [24]

Answer:

5-46i

Step-by-step explanation:

1. Multiply (10-4i) and (4-5i), I recomnd using foil:

40-50i-16+20i^2 + (-15+20i)

2. Remove the parenthesis around -15+20i

*we can do this since there is a "+":

40-50i-16+20i^2 + (-15)+20

3. Simplify i^2

* i^2 is -1 by textbook defination:

40-50i-16+20(-1) + (-15)+20

4. Simplify

40-50i-16-20 + (-15)+20

6. Combine like terms:

-5-50i-16i+20i

5-46i

And the problem is done

3 0

3 years ago

Which statement best represents the situation for the given ordered

choli [55]

Answer:

The answer is c

Step-by-step explanation:

Because $54 is equal to 9 pairs of pants you can multiply 9 by 4 to get 36. Which means 4 pairs of pants is worth $36

5 0

3 years ago

Read 2 more answers

I didn't know what to do here

slavikrds [6]

Answer:

Step-by-step explanation:

7 0

3 years ago

6 / 712 / 15 which one is greater and how do I explain it

Aleks04 [339]

Answer:

Greater fraction is

$\frac{6}{7}$

Step-by-step explanation:

we are given two fractions

$\frac{6}{7}$ and $\frac{12}{15}$

First fraction:

$\frac{6}{7}$

Second fraction:

$\frac{12}{15}$

We can simplify it

$\frac{12}{15}=\frac{3\times 4}{3\times 5}$

$\frac{12}{15}=\frac{4}{5}$

To compare them , firstly we should make common denominator

denominators are 7 and 5

so, common denominator is

$=7\times 5=35$

now, we can make each denominator as 35

$\frac{6}{7}=\frac{6\times 5}{7\times 5}$

$\frac{6}{7}=\frac{30}{35}$

$\frac{4}{5}=\frac{4\times 7}{5\times 7}$

$\frac{4}{5}=\frac{28}{35}$

$\frac{12}{15}=\frac{28}{35}$

so, we can see that both fractions have common denominator =35

and greater numerator is 30

so,

Greater fraction is

$\frac{6}{7}$

7 0

4 years ago

To motorists leave from the same point at the same time, one traveling east at 36 MPH and the other traveling west at 44 MPH. Ho

Ber [7]

This is a very good question to know about. People who make tests really like it.

The way to solve it is to make the slower car stop and use the difference in speed = to the rate. then do it as an ordinary d = r*t problem.

The difference in speeds is 44 - 36 = 8 miles/ hour.
d = 260 miles
r = 8 mph
t = ???

t = d/r
t = 260/8
t = 32.5 hours.

Thats 32 1/2 hours.

3 0

4 years ago