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erma4kov [3.2K]
3 years ago
8

8a + 5b = 9; 3a + 2b = 4

Mathematics
2 answers:
Marianna [84]3 years ago
7 0
This the the awnser for this

nevsk [136]3 years ago
4 0

Solve for the first variable in one of the equations, then substitute the result into the other equation.
a
=
−
2
,
b
=
5
a
=
-
2
,
b
=
5
T
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6
iren [92.7K]

Answer:

49.09 miles per day

Step-by-step explanation:

There are 5,280 feet in one mile.

There are 60 seconds in one minute.

3 * 60 = 180 feet per minute

There are 60 minutes in one hour.

180 * 60 = 10,800 feet in one hour.

There are 24 hours in one day.

10,800 * 24 = 259,200 feet per day.

Divide to find how many miles she can walk.

259,200 / 5,280 = 49.09 miles

Best of Luck!

8 0
4 years ago
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What is the equal value of 5 to the square of 7
ella [17]
The equal value is 78125
3 0
4 years ago
A computer virus infects files very quickly. The number of files triples every minute. After the first minute, five files are in
cupoosta [38]

Answer:

C

Step-by-step explanation:

The answer is C because r =3 I got that because it says triples. a=5 it comes from when it says five files are infected. an=3an-1. an=5(3)n-1. Hope this helps!

8 0
3 years ago
Which of these shows the result of using the first equation to substitute for Y in the second equation, then combining like term
Setler [38]

The answer for this question is A

4 0
3 years ago
Read 2 more answers
There are 5 pencils in a pack.
melamori03 [73]

Answer:

Catalina has 10 pencils total. (2 x 5 = 10)

Reese has 100 pencils total. (20 x 5 = 100)

6 0
3 years ago
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