3 years ago

Can anyone help me with this?

Mathematics

1 answer:

mixer [17]3 years ago

4 0

Answer:

1st is the correct answer

x=16

You might be interested in

130% of the sum of 7 and a number n is equal to 91.

dybincka [34]

$130\%(7+n)=91 \\
1.3(7+n)=91 \\
7+n=\frac{91}{1.3} \\
7+n=70 \\
n=70-7 \\
n=63$

4 0

3 years ago

Read 2 more answers

A mechanic charges $60 to inspect your heater, plus $70 per hour to work on it. You owe the mechanic a total of $410. Write and

uranmaximum [27]

Answer:

($410 - $60) / $70 = 5

After subtracting the $60 base fee, you can just divide the hours paid for by the hourly wage and find out how many hours were worked. Hope this helps!

5 0

3 years ago

you want to put 2000 in a simple intrest account. it has 2.5 annual intrest rate. how long will it take you to earn 500 in intre

mash [69]

Interest = PRT /100

500 = 2000*2.5*T / 100
5000T = 50,000
T = 50,000 / 5000 = 10 years

5 0

3 years ago

Solve the system of linear equations by substitution

ziro4ka [17]

$y - x = 0 ...equation 1$
$2x - 5y = 9 \: ...equation \: 2$
working with equation 1
$y = x \: ...equation \: 3$
next subsitue equation 3 in equation 1
$2x - 5(x) = 9$
$2x - 5x = 9$
$- 3x = 9$
divide by -3
$x = - 3$
substitute x= -3 in equation 1
$y - ( - 3) = 0$
$-(-3) = + 3$
$y = - 3$

6 0

3 years ago

Is 300 cm or 30 meters larger

notka56 [123]

I think it's 30 meters
I hope it helps

8 0

3 years ago