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grin007 [14]
3 years ago
5

Find the value of 3a + b when a = 5 and b = -2

Mathematics
2 answers:
Licemer1 [7]3 years ago
5 0

Answer:

13

Step-by-step explanation:

Just replace the a and b with the value given then plug it into a calculator.

Should look like 3(5)+(-2)

madam [21]3 years ago
3 0

Answer:

13

Step-by-step explanation:

3(5)+(-2)

15-2

13

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A taxi charges $2.50 for the first mile and $0.40 for each mile after that. The expression below shows how to find the total cos
Svet_ta [14]

The expression which shows the total cost is 2.50+0.4x and the cost of riding 20 miles is $10.50.

Given a taxi charges $2.50 for the first mile and $0.40 for each mile

We are required to make an expression showing total cost and total cost of a 20 mile ride.

let the miles ride by tax be x.

Total cost of the product or service=Number of units*price of one units.

We have been given that $2.50 is fixed so we will not multiply our variable charge with $2.50 and multiply 0.40 with x.

So,the expression showing looks like 2.50+0.40x.

Now to find the cost when taxi travels 20 miles, we have to put x=20,

Cost=2.50+0.40*20

=2.50+(40*20)/100

=2.50+800/100

=2.50+8

=$10.50

Hence the expression which shows the total cost is 2.50+0.4x and the cost of riding 20 miles is $10.50.

Learn more about expression at brainly.com/question/723406

#SPJ4

6 0
2 years ago
The bar chart shows all the eye colours of students in a class. What fraction of the students have blue eyes? Give your answer i
Burka [1]

Answer:

1/29

Step-by-step explanation:

There are 29 students in total, and the students with blue eyes is only 1.

The fraction would be 1/29 and this is its simplest form.

5 0
3 years ago
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Ratling [72]

Answer:

(-4,6) is the vertex

Step-by-step explanation:

because it's either the lowest or highest point on the graph.

7 0
3 years ago
Rewrite 30 + 36 using gcf and the distributive property
postnew [5]

Answer:

15+17

Step-by-step explanation:

6 0
3 years ago
Solve for x. PLease Help right now.
Leni [432]

Answer: 9

Step-by-step explanation: The smaller triangle is half the size of the bigger one so the answer would just be half of 18

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4 years ago
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