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4 years ago

Write 3.141 in expanded notation

Mathematics

2 answers:

Strike441 [17]4 years ago

7 0

Three and one hundred forty one hundredths <span />

Oksana_A [137]4 years ago

5 0

Three and one hundred forty one hundredths

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3x < 18 <br> A) x < 6 B) x > 6 Eliminate C) x < 15 D) x > 54

Flura [38]

The answer is A because if you cancel out the 3 on the left then you need to do the same with the right, and 18÷3=6. so you keep the inequality sign the same and BAM!!

8 0

3 years ago

BRAINLIEST ASAP! PLEASE HELP ME :)

Margaret [11]

Answer:

$\large \boxed{\text{3.0 mi/h}}$

Step-by-step explanation:

Let x = the current of the river

Then 21 + x = the speed going downstream (with the current)

a nd 21 - x = the speed going upstream (against the current)

Distance = speed × time

d = st

t = d/s

Time going downstream = time going upstream

$\begin{array}{rcll}\dfrac{2.4}{21+ x}& = & \dfrac{1.8}{21 - x} &\\\\2.4& = &(21 + x) \dfrac{1.8}{21 - x} &\text{Multiplied each side by (21 + x)}\\\\2.4(21 - x)& = & 1.8(21 + x) &\text{Multiplied each side by (21 - x)}\\50.4 - 2.4x&=& 37.8 + 1.8x&\text{Removed parentheses}\\50.4 & = & 37.8 + 4.2x & \text{Added 2.4x to each side}\\\end{array}\\$

$\begin{array}{rcll}12.6 & = & 4.2x & \text{Subtracted 37.8 from each side}\\x & = &\dfrac{12.6}{4.2}&\text{Divided each side by 4.2}\\\\ & = &\mathbf{3.0}& \text{Simplified}\\\\\end{array}\\\text{The current is $\large \boxed{\textbf{3.0 mi/h}}$}$

Check:

$\begin{array}{rcl}\dfrac{2.4}{21+ 3}& = & \dfrac{1.8}{21 - 3}\\\\\dfrac{2.4}{24}& = & \dfrac{1.8}{18}\\\\0.10 & = & 0.10\\\end{array}$

4 0

3 years ago

An office manager buys 34 chairs for the new office. Each chair costs $205. What is the total amount the office manager pays for

alekssr [168]

Answer:

so each chair will cost 205

205 will be our cost C this is our dependent due to the entire cost being base on how many chairs that will get order

the independent variable will be how many chairs that will be ordered and there are 34 chairs being ordered

34*205= 6970

the total cost will be 6970

8 0

3 years ago

WILL MARK YOU BRAINLIEST!!!!!!

My name is Ann [436]

Answer:

y = 88

Step-by-step explanation:

Don't worry about the other stuff, just worry about what's in the triangle that has Y.

53°, 39°, and y°

the sum should be equal to 180 so add 53 adn 39 and subtract it from 180.

180 - (53 + 39) = y

180 - 92 = y

88 = y

Hope this helped! Pls Brainliest my answer! It would help amd mean a lot! ;)

6 0

3 years ago

Please help me. I don’t know what to do.

stiv31 [10]

Answer:

1. B

2. 2

3. See below

Step-by-step explanation:

1. Check the length of the segments

A. UV < XY (4 < 4) False

B. WY < UW (5 < 8) True

C. VW > WY (5 > 5) False

D. UX > YV (10 > 10) False

Midpoint of AC = 8

midpoint of AB = 6

The length of the segment between those points is 8-6 = 2

3. If D is the mid point of EF means that ED is the half of EF

$\frac{4x - 8}{10x + 4} = \frac{1}{2 } \\ {2(4x - 8)} = 10x + 4 \\ 8x - 16 = 10x + 4 \\ - 16 - 4 = 10x - 8x \\ - 20 = 2x \\ - 10 = x$

x cant be negative so D isnt the mid point of EF

6 0

3 years ago