3 years ago

!! PLEASE HELP, TIMED!!Multiple choice, BRAINLIEST for correct answer

Mathematics

1 answer:

geniusboy [140]3 years ago

8 0

I think it’s C but I am not sure

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One month, Ruby worked 4 hours more than Isaac, and Svetlana worked 4 times as many hours as Ruby. Together they worked 104 hour

nadya68 [22]

Let Isaac = x
Ruby = x + 4
Svetlana = 4(x + 4)

Together they worked 104 hours, so...

x + x + 4 + 4(x + 4)= 104
x + x + 4 + 4x + 16 = 104
6x + 20= 104
6x = 84
x = 84/6 = 14

Isaac worked x = 14 hours

Ruby worked x + 4 = 18 hours

Svetlana worked 4(x + 4) = 4×18 = 72 hours

Check your answers...

72 + 18 + 14 = 104
104 = 104 it checks!

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3 years ago

What is 81.139 rounded to the nearest tenth

xxMikexx [17]

Tenth = 0.1
81.139 ≈ 81.1

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3 years ago

The football team has a total of 25 jerseys. There are 15 medium sized jerseys. What percent of the jerseys are medium sized jer

kotegsom [21]

the answer for your question is 60%

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3 years ago

Read 2 more answers

This is what I’m working with for my last question

olga55 [171]

Equation: 6x=3x+72

So 3x=72

x=24

$\angle ABC=3x+72=144$

$\angle GFH=\angle FBD=\angle ABC=144$

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4 years ago

Multiply the additive inverse of (-7/8) by the reciprocal of (5 1/2)<br><br>PLEASE HELP!

EleoNora [17]

Answer:

$\bold {$\dfrac{7}{44}$}$

Step-by-step explanation:

<h3> Reciprocal:</h3>

$\sf \text{The reciprocal of any number $\dfrac{a}{b}$ is given by $\dfrac{b}{a}$}\\\\5\dfrac{1}{2}=\dfrac{11}{2}\\\\\text{Reciprocal of $\dfrac{11}{2}$ = $\dfrac{2}{11}$}$

<h3>Additive inverse:</h3>

$\text{Additive inverse of $\dfrac{-7}{8}$=$\dfrac{7}{8}$}$

Now multiply,

$\sf \dfrac{7}{8}*\dfrac{2}{11}=\dfrac{7}{4}*\dfrac{1}{11}\\$

$=\dfrac{7}{44}$

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2 years ago