2 years ago

Need help with this math

Mathematics

1 answer:

Bad White [126]2 years ago

4 0

Answer :

It will take 5 hours for Rachel to catch up with Nick.

Explaination :

Here we are given with two equations,

f = 7h + 20 (Equation No 1)
f = 10h + 5 Equation No 2)

So in order to calculate the number of hours (h). We would simply substitute the value of f in first equation. (i.e., keeping them equal)

>> 7h + 20 = 10h + 5

>> 10h - 7h = 20 - 5

>> 3h = 15

>> h = 15 / 3

>> h = 5

You might be interested in

You are constructing deck chairs that require 12 2/3 feet of lumber each. How many feet of lumber will you use to make 15 chairs

Mrrafil [7]

As each chair needs 12.6667 feet lumber.So 15 chairs will need 15*12.6667=190.0005 lumber

5 0

3 years ago

What is a prime number

miss Akunina [59]

Answer:

a number that is divisible only by itself and 1 (e.g. 2, 3, 5, 7, 11).

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Graph the line with slope - 1 passing through the point (-3, 3).

vovikov84 [41]

Answer:

Y=-x

Step-by-step explanation:

Y=mx+c

y=3, x= -3, m=-1

(-1)(-3)=3

3-3=0

S0,

c=0

y=-x

8 0

3 years ago

Read 2 more answers

How is 4/50 written as a percent

Leona [35]

8%
4 ÷ 50 is 0.08 x 100 is 8%

8 0

3 years ago

Read 2 more answers

Which choices are equivalent to the expression? √(5) x √(20)

statuscvo [17]

Answer:

10 is the answer

Step-by-step explanation:

You have to multiply with whats inside the roots. you would have $\sqrt{5} times \sqrt{20} will give you \sqrt{100} which is 10$

8 0

3 years ago