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nekit [7.7K]
3 years ago
15

1. Evaluate the following expression:

Mathematics
1 answer:
stira [4]3 years ago
3 0

Answer:

1. 37, 2. 1 2/5

Step-by-step explanation:

For Question 1:

Step 1: Replace the x values

x= 3, y=5

Now you get...

9x + 2y --->  (9 x 3) + (2 x 5)    

(Remember, if an x value is beside a number, and it is replaced, that replaced number is to be multiplied with the number the previous x value was.)

Parentheses first, Multiplication second, Addition third (look at PEMDAS below :) )

Step 2: Multiply and Add

(9 x 3) + (2 x 5)

27 + 10

37

For Question 2:

Step 1: Replace the x and y values

m = 1, p = 5

Now your equation should look like this:

m + p ÷ 5 ---> 1 + 2 ÷ 5

Now, which one to do first? Use the PEMDAS strategy

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

You have to do it from top to bottom

Division comes first, which means, you have to divide first, then add:

2 ÷ 5 = 2/5

2/5 + 1 = 1 2/5

Hope this helps :)

-jp524

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I NEED HELP ASAP Find the distance between the points (2, 3) and (2, 8).
andreyandreev [35.5K]

Use the distance formula: x=sqrt((x2-x1)^2+(y2-y1)^2)

Plug in ordered pairs for the variables:

x=sqrt((2-2)^2+(8-3)^2)

x=sqrt(0+25)

x=sqrt(25)

x=5 or -5

Since distance is ALWAYS positive, it's 5 units

Hope this helped!

6 0
4 years ago
Technician A says when there is a delay or slip as the transmission shifts into any forward gear, a slipping rear clutch is indi
blagie [28]

Answer:

Technician B

Step-by-step explanation:

It is very important that any car is taking for a test drive and a road test is carried out to check for any sort of problem with the transmission of the car or any leakages that may be found in the hydraulic circuits.

Technician B is very correct because when the hydraulic circuits is leaking, the front or forward clutch tends to slip thereby causing the shift for all forward gears to be delayed

Also,the sticking of the spool into the body of the valve can also cause the problem to occur as well.

8 0
4 years ago
Preston started the summer owing $15 to his brother and $20 to his sister. He earned $75 mowing lawns, and paid his brother and
joja [24]

Answer:

$75 - $15 - $20 = $40

Step-by-step explanation:

Given that:

Money owed by Preston to his brother = $15

Money owed by Preston to his sister = $20

Total money earned by Preston = $75

Now, the money is paid back that he owed to his sister and brother.

To find:

The expression to represent the amount of money left with Preston after clearing all his dues?

Solution:

Once Preston pays back the money that he owed to his brother and sister, he will not have all $75 left with him.

He will have lesser amount of money.

Money left with Preston = Total money earned by Preston - Money owed to brother - Money owed to sister

Putting the values given as per the question statement, we get:

Money left with Preston = $75 - $15 - $20 = $40

Therefore, the expression to represent the amount of money left with Preston =<em> $75 - $15 - $20 = $40</em>

8 0
3 years ago
What is this answer?
Angelina_Jolie [31]
A because inverse is the opposite order so instead of -3/1 or 5/1 it becomes 1/-3 and 1/5
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3 years ago
Pam bought 20 pieces of fruit for her class. Each piece of fruit was either an apple or an orange. She spent $1.25 on each apple
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8 oranges & 12 apples
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