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iVinArrow [24]
3 years ago
6

421.2 - 305.8 Using mental math

Mathematics
1 answer:
Nitella [24]3 years ago
8 0

Answer:

114.4

Step-by-step explanation:

421.2

-305.2

114.4

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NEED HELP ON THIS ASAP
Valentin [98]

Answer:

34

Step-by-step explanation:

7 0
3 years ago
Write 11/3 as a mixed number<br> Write 2 4/5 as an improper fraction<br> Please help!!
kaheart [24]

Answer:

11 over 3 is 2 and 2/3. 2 4/5 is 14/5

Step-by-step explanation:

When making a fraction a mixed number, divide the numerator by the denominator. What ever number you have left will be ur numerator,and denominator always stays the same. Making fractions improper: multiply denominator by the whole number (2) and then add the numerator to the answer. denominator stays the same.

4 0
3 years ago
On a airplane,there are two seats on the left side in each row and there seats on the right side.there are 90 seats on the right
Neko [114]
There is also 90 seats
6 0
3 years ago
Read 2 more answers
Harper works at an electronics store as a salesperson. Harper earns a 6% commission on the total dollar amount of all phone sale
agasfer [191]

<u>Answer:</u>

The system of equations are

x + y = 2600   …….equation (1)

and, 6x + 5y = 13700  ……equation (2)

<u>Explanation:</u>

Let x = amount of sales of phone;

y = amount of sales of computer

For phone, 6% of sales is 6% of x, or 6% * x = 0.06x.

Similarly for computer,

5% of y = 0.05y

Given the total sales; x + y = 2600

And commission; 0.06x + 0.05y = 137; or 6x + 5y = 13700

Therefore the system of equations are

x + y = 2600   …….equation (1)

6 x + 5 y = 13700  ……equation (2)

7 0
3 years ago
This is a question from my sibling's math class.
Solnce55 [7]

Answer:

14

Step-by-step explanation:

You can solve using PEMDAS:

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

3(2+5)-5(3)+8=?

3(7)-5(3)+8=?

No exponents

3(7)-5(3)+8=?

21-15+8=?

No division

21-15+8=?

21-7=?

21-7=14

3(2+5)-5(3)+8=14

5 0
3 years ago
Read 2 more answers
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