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3 years ago

Five greater than or equal to x minus seven

Mathematics

1 answer:

kvv77 [185]3 years ago

4 0

This equation would be represented as 5 ≥ x-7

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3 years ago

Evaluate. 8−2⋅3+7 PLZ PLZ HURRY

Fynjy0 [20]

Answer:

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Step-by-step explanation:

Step 1: Define expression

8 - 2 · 3 + 7

Step 2: Evaluate

Multiply: 8 - 6 + 7
Subtract: 2 + 7
Add: 9

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3 years ago

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James bought two T-shirts and one pair of jeans at an online store and paid $40, not including taxes, for his purchase. A month

Airida [17]

Answer:

$\boxed{\text{\$10; \$20}}$

Step-by-step explanation:

Let t = the price of a T-shirt

and j = the price of a pair of jeans

You have a system of two equations:

$\begin{cases}(1)& 2t + j = 40\\(2) & 2(0.5t) + 5(0.5j) = 60\end{cases}\\$

$\begin{array}{lrcll}(3) & t+ 2.5j & = & 60 &\text{Removed parentheses in (2)}\\(4)& 2t + 5j & = & 120 &\text{Multiplied (3) by 2}\\& 4j & = & 80 &\text{Subtracted (4) from (1)}\\(5)& j & = & 20 &\text{Divided each side by 4} \\& 2t + 20& = & 40 & \text{Substituted (5) into (1)} \\&2t & = & 20 & \text{Subtracted 20 from each side}\\& t & = & 20 & \text{Divided each side by 2}\\\end{array}$

$\text{The price of a T-shirt is \boxed{\textbf{\$10}}}\\\\\text{and the price of a pair of jeans is \boxed{\textbf{\$20}}}\\$

Check:

$\begin{array}{rclcrcl}2\times10\ + 20 & = & 40 & \qquad &2(0.5\times10) + 5(0.5\times20)&=&60\\20 + 20 & = & 40 & \qquad &2\times5 + 5\times 10& = &60\\40& = & 40 &\qquad &10 + 50 & = & 60\\& & &\qquad &60 & = & 60\\\end{array}$

OK.

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4 years ago

What’s equivalent to 3/2

love history [14]

Answer:

Some fractions equivalent to 3/2 are...

6/4 9/6 12/8 15/10 18/12 21/14 24/16

27/18 30/20 33/22 36/24

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3 years ago

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