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Anastasy [175]
3 years ago
12

Plz help me number 4 thanks

Mathematics
1 answer:
Tcecarenko [31]3 years ago
4 0

They \:  would \:  be  - 10°F,  - 13°F, - 21°F

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baherus [9]
The answer to day 3 is A :)

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4 years ago
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Meg is recording all her expense (using negative numbers)and allowances.At the end of the month,she added her total allowances t
Ilya [14]

Answer:

<h2>Expenses= Allowance</h2>

Step-by-step explanation:

<em>The statements are not provided in the question, however, we can deduce from the information given.</em>

in the information provided, expenses are -ve(negative)

and allowances are +ve (positive)

if at the end of the month she balances are account and the total is zero

We can conclude that:

1. Her total expenses is equal to her allowance for the month

2. Meg spent all her allowances for the month

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3 years ago
What is the slope of the graph of the line 6x-2y=15
kondaur [170]
The answer is 3
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3 years ago
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A chemical company makes two brands of antifreeze. The first brand is 65% pure antifreeze, and the second brand is 90% pure anti
Brums [2.3K]

\bf \begin{array}{lcccl} &\stackrel{solution}{gallons}&\stackrel{\textit{\% of }}{antifreeze}&\stackrel{\textit{gallons of }}{antifreeze}\\ \cline{2-4}&\\ \textit{1st brand}&x&0.65&0.65x\\ \textit{2nd brand}&y&0.90&0.9y\\ \cline{2-4}&\\ mixture&40&0.8&32 \end{array}~\hfill \to \begin{cases} x+y&=40\\ \boxed{x}=40-y\\ \cline{1-2} 0.65x+0.9y&=32 \end{cases} \\\\[-0.35em] ~\dotfill

\bf \stackrel{\textit{substituting in the 2nd equation}}{0.65\left( \boxed{40-y} \right)+0.9y=32}\implies 26-0.65y+0.9y=32 \\\\\\ 26+0.25y=32\implies 0.25y=6\implies y=\cfrac{6}{0.25}\implies \blacktriangleright y=24 \blacktriangleleft \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{since we know that}}{x=40-y\implies }x=40-24\implies \blacktriangleright x=16 \blacktriangleleft

7 0
3 years ago
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(50m + 5m+20m) + 10m​
Tanzania [10]

Answer:

85 is the correct answer I think

8 0
3 years ago
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