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MatroZZZ [7]
2 years ago
7

-7y + 3 – 12 – 2y What is the answer

Mathematics
2 answers:
grandymaker [24]2 years ago
7 0
Answer:
-9y - 9

Step by step explanation:

-7y + 3 - 12 - 2y

-7y -2y + 3 -12

= -9y - 9
tamaranim1 [39]2 years ago
6 0
-9y-9 simplification
-9y-9=0
-9y=9
y=-1
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The number of calories K is needed each day by a moderately active women who weight w pounds, is h inches tall, and is a year ol
drek231 [11]
K = 917 + 6(w + h - a)
k = 1925
w = 119
a = 25

1925 = 917 + 6(119 + h - 25) =
1925 = 917 + 6(h + 94)
1925 = 917 + 6h + 564
1925 = 1481 + 6h
1925 - 1481 = 6h
444 = 6h
444/6 = h
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4 0
2 years ago
jillians school is selling tickects for a play. the tickets cost $10.50 for adults and $3.75 for students
Natali5045456 [20]

Answer:

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Step-by-step explanation:

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2 years ago
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olga2289 [7]
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7 0
2 years ago
A certain solution of salt water is 10% salt and weighs 50 pounds. more salt must be added to produce a solution that is 25% sal
Semenov [28]

Answer

7.5 pounds

Step-by-step explanation:

Since adding x grams of salt will bring th percentage of the salt to 25

Hence. 10% of the 50 gram gives. 5 gram initial salt before it is added.

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8 0
3 years ago
Devon records 4 hours of reality shows on her DVR she records comedy shows for 3/8 of that amount of time. Devon watches all the
Alenkinab [10]

The number of half-hour sittings needed to watch all the shows by Devon is 11

<u>Solution:</u>

Given, Devon records 4 hours of reality shows on her DVR  

she records comedy shows for 3/8 of that amount of time.  

\rightarrow \frac{3}{8} \text { of } 4 \text { hours } \rightarrow \frac{3}{8} \times 4 \rightarrow \frac{3}{2} \text { hours }

Devon watches all the reality and comedy shows in half-hour sittings.

We have to find the number of half-hour sittings needed to watch all the shows

Now, number of half hour sittings is given as

=\frac{\text { total time of videos }}{\text { time for hlaf hour sitting }}

\begin{array}{l}{=\frac{4 \text { hours for reality shows }+\frac{3}{2} \text { hours for comedy shows }}{\frac{1}{2} \text { hours for each sitting }}} \\\\ {=\frac{4+\frac{3}{2}}{\frac{1}{2}}=\frac{\frac{8+3}{2}}{\frac{1}{2}}=\frac{\frac{11}{2}}{\frac{1}{2}}=\frac{11}{2} \times \frac{2}{1}=11}\end{array}

Hence Devon needs 11 sittings

3 0
3 years ago
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