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lions [1.4K]
3 years ago
12

At what at speed was jo walking for the first 30 minutes?

Mathematics
1 answer:
Aleksandr [31]3 years ago
5 0

Answer:

6 km/hr

rested 10 minutes

Step-by-step explanation:

3 km/0ne half hour = 6 km/hr

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Simplify 5(x + 3) - 9x+4.<br>O A. 14x+7<br>O B.-4x+19<br>O C. 14x+19<br>D. -4x+7​
Julli [10]

Answer:

B

Step-by-step explanation:

distribute

5x+15-9x+4

combine like terms

-4x+19

8 0
3 years ago
Read 2 more answers
Please help 8 points each but beware if you use my points for no reason I'll report you
zlopas [31]

Answer:

V = 32

Step-by-step explanation:

Comment

I think you should try this one yourself after I post my answer. Estimation is a very valuable tool -- the more you use it, the handier it gets.

Formulas

pi = 3

V = 4/3 * pi * r^3

Givens

r = 2

pi = 3

Solution

V  = 4/3 * pi * r^3                     Substitute values for symbols

V = 4/3 * 3 * 2^3                      Cancel the 3s

V = 4 * 2^3                               Expand the 2s

V = 4 * 2 * 2 * 2                       Find V

V = 32

4 0
2 years ago
Read 2 more answers
There are premium tickets costing $99 each and rest are regualr tickets costing $25 each. A pile of 120 tickets have a total val
polet [3.4K]

Answer:

There are 38 premium tickets and 82 regular tickets in a pile.

Step-by-step explanation:

Given,

Total number of tickets = 120

Total amount = $5812

Solution,

Let the number of premium tickets be x.

And the number of regular tickets be y.

Total number of tickets is the sum of total number of premium tickets and  total number of regular tickets.

So the equation can be written as;

x+y=120\ \ \ \ \ equation\ 1

Again,total amount  is the sum of total number of premium tickets multiplied by cost of each premium ticket and  total number of regular tickets multiplied by cost of each regular ticket.

So the equation can be written as;

99x+25y=5812\ \ \ \ equation\ 2

Now We will multiply equation 1 by 25 we get;

x+y=120\\25(x+y)=120\times25\\25x+25y= 3000 \ \ \ \ equation\ 3

Now Subtracting equation 3 from equation 2 we get;

(99x+25y)-(25x+25y)=5812-3000\\\\99x+25y-25x-25y=2812\\\\74x=2812\\\\x=\frac{2812}{74}=38

We will now substitute the value of x in equation 1 we get;

x+y=120\\38+y=120\\y=120-38\\y=82

Hence There are 38 premium tickets and 82 regular tickets in a pile.

3 0
3 years ago
Square: Area 25 units2.<br> What is the square root?
stealth61 [152]

Answer:

The square root is 5 units.

Step-by-step explanation:

It is given that:

Square area is 25 units square.

We have to find the square root.

Square root = \sqrt{25}

Square root = \sqrt{5*5}

Square root = 5 units

Therefore,

The square root is 5 units.

5 0
3 years ago
Read 2 more answers
Which ordered pair describes a point with a location in the first quadrant of a coordinate plane?
Serga [27]

Answer:

(3, 2)

Step-by-step explanation:

7 0
3 years ago
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