MATHEMATICS MIDDLE SCHOOL

What is 1,680+110 7/16

Answers

Answer 1

Answer: I don't get because you did not add a symbol between 110 and 7/16 so i can't tell you.

Expression:

An expression, often known as a mathematical expression, is a finite collection of symbols that are well-formed in accordance with context-dependent principles.

Simplification of expressions:

A mathematical expression is simplified when it is expressed in the simplest way possible.
The expression is usually reduced to its simplest form by using fundamental features of numbers, exponents, algebraic principles, etc. to eliminate any repetitions or redundancies.

Solution -

Given expression - $(-0.25x-3)-(1.5x+1.4)$ .

To find - Simplify the expression.

Since,

$(-0.25x-3)-(1.5x+1.4)\n-0.25x-3-1.5x+1.4\n= 1.75x-4.4$

Therefore, after simplification the expression is $1.75x-4.4$ .

Know more about expressions here:

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SOLUTION:

= ( - 0.25x - 3 ) - ( 1.5x + 1.4 )

= - 0.25x - 3 - 1.5x - 1.4

= - 1.75x - 4.4

A blue whale has a length of 28,578 millimeters. What is the length of a blue whale in kilometers? Show your work below by writing the conversion factors you use to solve this question

Answers

0.028578 km is how long the whale is in km

Answer: 0.028578 km

Step-by-step explanation:

Ellie has $30 in a savings account that earns 7% interest. How much will she have in total in 5 years? A.$10.50 B.$1050 C. $40.50 D. $32.50

Answers

Assuming simple interest.

Simple Interest = PRT/100

Simple Interest = 30 * 7 * 5 /100 = 10.50

Simple Interest = $10.50

Amount = Principal + Interest = $30 + $10.50 = $40.50

(C)

Jamal is making two paintings using canvases that are similar rectangles. The length of the smaller canvas is 3 ft and the width is 5 ft.What is the length of the larger canvas if the width is 10 ft?

Answers

Let's start with what we know:

Smaller canvas:
Length ( $L_(1)$ ) = 3ft
Width ( $W_(1)$ ) = 5ft

Larger canvas:
Length ( $L_(2)$ ) = ?
Width ( $W_(2)$ ) = 10ft

Since these are similar rectangles, we can cross-multiply to calculate the missing length. Here's that formula:

$( L_(1) )/( L_(2) ) = ( W_(1) )/( W_(2) )$
So let's plug it all in from above:

$( 3 )/( L_(2) ) = ( 5 )/( 10 )$
Now we cross multiply by multiplying the top-left by the bottom-right and vice versa:

$(3)(10) = (5)(L_(2))$
$30 = 5L_(2)$
Now divide each side by 5 to isolate $L_(2)$

$(30)/(5) = ( 5L_(2))/(5)$
The 5s on the right cancel out, leaving us with:

$6 = L_(2)$

So the length of the larger canvas is 6 ft

It's not as complicated as you think. The smaller rectangle is 3ft with a width of 5ft. It's asking what the length of the larger canvas is if the width is 10ft. So you pretty much just do 10/5 which is 2 then you multiply 3ft by 2 and you get 6ft.

If you need any help just ask :)

-John

If the radius of Mars is about 13.7% of Neptunes radius what is the radius of Neptune