3 years ago

Plz help me well mark brainliest if you are correct!

Mathematics

1 answer:

Dvinal [7]3 years ago

6 0

Answer:

Hello! answer: B

Step-by-step explanation:

B marks -1.5 on the number line. HOPE THAT HELPS!

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Novay_Z [31]

Answer:

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Step-by-step explanation:

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3 years ago

Julie's first three test scores in biology<br> were 65, 90 and 73. What was her<br> average score?

dedylja [7]

Answer:Julie's average score was 76

Step-by-step explanation:

The formula for Average or mean is expressed as

Average = sum of terms / total number of terms.

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4 years ago

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nikitadnepr [17]

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4 years ago

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OverLord2011 [107]

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3 years ago

Read 2 more answers

2. Richmond Appliance repairs washing machines. The revenue that the company earns is given by the function R(h) = 20 + 45h doll

Vesnalui [34]

The number of hours needed for the company to break even happens when
$R(h)=C(h)$

$20+45h= 5h^{2}-30$ , rearranging to make the equation 'zero' on LHS
$0= 5h^{2}-30-20-45h$
$0= 5h^{2}-45h-50$ , divide each term by 5
$0= h^{2}-9h-10$ , factorise
$0=(h+1)(h-10)$ , equate each factor to zero
$h=-1$ and $h=10$

We choose the positive value of $h$

Hence, the number of hours needed to break even is $h=10$

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3 years ago