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Tju [1.3M]
3 years ago
12

Derek bought two new tires for a car

Mathematics
1 answer:
alexandr402 [8]3 years ago
8 0

Answer: $213.96

Step-by-step explanation:

You literally just plus all the numbers together:

(2×69.99)+(2×39.99)

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Ariel left her home at 9 a.m., driving at 45 mph. At 11 a.m. her brother left the home and started after her at 60 mph. At what
Vlada [557]

Answer:

5:00 pm

Step-by-step explanation:

Let

x -----> the umber of hours

y ----> the total distance in miles

we know that

The distance is equal to the speed multiplied by the time

Find out the distance traveled by Ariel at 11:00 am

11:00 am-09:00 am=2 hours

45(2)=90 miles

so

<em>Ariel's linear equation is</em>

y=45x+90 ----> equation A

<em>Ariel's brother linear equation is</em>

y=60x ----> equation B

Equate equation A and equation B

60x=45x+90

Solve for x

60x-45x=90

15x=90

x=6\ hours

Adds 11:00 am + 6 hours=17:00 =5:00 pm

6 0
3 years ago
You can model the entrance to a mine shaft using the equation
Furkat [3]

y=-1/2 2 (x+4)(x+-4+

-1/2*2 = -1

y=-1(x+4)(x-4)

solving for x

x - -4 and x =4

-4 to 4 = 8 feet

 width = 8 feet

4 0
3 years ago
Read 2 more answers
write in graphing form please! A parabola that opens down with no stretch factor that has a vertex of (-6,5)
wolverine [178]
If it has no stretch factor, then there will be no coefficient. Meaning this is a lot easier. So, we equation is

(x+6)^2 + 5

Hope this helps!
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8 0
3 years ago
How to find the volume of a cone with its base in algebra​
marin [14]

Answer:

V=pi r² h/3

Step-by-step explanation:

V=volume

R=radius

H=height

7 0
3 years ago
What is the value of x in the equation in ( x + 6)- in (2x-1) =1
ki77a [65]

Answer:

x= -5

Step-by-step explanation:

5 0
3 years ago
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