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olga2289 [7]
3 years ago
7

Simplify all the equations.

Mathematics
1 answer:
hammer [34]3 years ago
8 0

Answer:

C is 5x+13 D is 5x+12

Step-by-step explanation:

expand brackets

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Scott bought a 5lb bag of cookies at the bakery. He ate 2/5 of the bag and his sister ate 2/9 of the bag. What fraction of the b
satela [25.4K]

Answer:  Fraction they both eat = \dfrac{28}{45}.

Fraction of bag remains =  \dfrac{17}{45}

Step-by-step explanation:

Given: Part of cookies eaten by  Scott = \dfrac25

Part of cookies eaten by sister = \dfrac{2}{9}

Fraction they both eat = \dfrac25+\dfrac29=\dfrac{9\times2+5\times2}{5\times9}

=\dfrac{18+10}{45}\\\\=\dfrac{28}{45}

Fraction of the bag remain = 1-\dfrac{28}{45}=\dfrac{45-28}{45}=\dfrac{17}{45}

[Taking fraction of whole bag =1]

Hence, Fraction they both eat = \dfrac{28}{45}.

Fraction of bag remains =  \dfrac{17}{45}

4 0
3 years ago
What is the value of the expression below.4/5+3/5+3.5×5
Solnce55 [7]

Answer:

18.9

Step-by-step explanation:

4/5  +  3/5  +  3.5  * 5

Well using PEMDAS you would need to do 3.5 x 5 which is 17.5

After that you would to 4/5  + 3/5 which is 7/5 also as 1  2/5

Then you would do 7/5  +  17.5 = 18.9

I might be wrong but that is what I got and I hope it helps you :)

6 0
3 years ago
A pizza place offers 3 different cheeses and 12 different toppings. In how many ways can a pizza be made with 1 cheese and 3 top
svetlana [45]
You have to choose 1 sort of cheese from 3 ( 3 ways ). Also you have to choose 3 toppings from 12 different toppings:
12 * 11 * 10 = 1,320 ways.
In total: 3 * 1,320 = 3,960
Answer:
In 3,690 ways can pizza be made with 1 cheese and 3 toppings.
3 0
3 years ago
−2/3a+1/8−1/6a−3/4 PLEASE HELP
prohojiy [21]

Answer:

Evaluate:

-\frac{5a}{6} - \frac{5}{8}

Factor:

\frac{5(-4a-3}{24}

Step-by-step explanation:

6 0
3 years ago
Julias text messaging plan costs $8 for the first 400 messages and 20e for each additional text message. If she owes $24.00 for
Makovka662 [10]

Answer:

160 is the answer because 8x20 is 160 also 20÷400 is 20 so that made pretty good sense

4 0
3 years ago
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