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3 years ago

1: The local street cart sells bacon egg and cheese sandwiches for $2.50,

Mathematics

1 answer:

myrzilka [38]3 years ago

6 0

Answer:

213 sandwiches

534 soft drinks

Step-by-step explanation:

system of equations, if you want better explanation, hmu in the comments.

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Write the fact family. for 6, 4, 24

GarryVolchara [31]

$4 \times 6 = 24 \\ 6 \times 4 = 24 \\ 24 \div 6 = 4 \\ 24 \div 4 = 6$
That's it :3

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3 years ago

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LaPeach Elementary School uses 4000 pencils each year. The school has 500 students. What is the unit rate per student?

mezya [45]

Answer:

Step-by-step explanation:

Unit per student = 4000/500 = 8

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3 years ago

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Please select the best answer from the choices provided

Ira Lisetskai [31]

<u>Answer:</u>

The correct answer option is c. $\frac{1}{9a^2}$ .

<u>Step-by-step explanation:</u>

We are given an expression $(27a^{-3})^{-\frac{2}{3} }$ and we are supposed to simplify it.

We can also write $(27a^{-3})^{-\frac{2}{3} }$ as $(\frac{3^3}{a^3} )^{-\frac{2}{3} }$ .

We know the power rule (a^m)^n=a^{mn} which means that to raise a power to a power you need to multiply the exponents.

So multiplying the exponents to get:

$\frac{3^{(3.-\frac{2}{3})} }{a^{(3.\frac{2}{3})} }\\\\\frac{3^{-2}}{a^2}\\ \\\frac{1}{3^2a^2} \\\\\frac{1}{9a^2}$

Therefore, the correct answer option is c. $\frac{1}{9a^2}$ .

4 0

3 years ago

SOLVE STEP BY STEP !!!! answer correctly please !! Will mark brainliest !!!!!!!!!!!!!!

Mnenie [13.5K]

Step-by-step explanation:

(3X-20)+(3X+5)=111(( SINCE 111 IS TOTAL ANGLE

6X-15=111

6X=126

X=21

EFG=3×21-20

=63-20=43

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3 years ago

7-c<1 ?? HELPPPP!!!MEEEeee

sesenic [268]

Answer:

c>6, since a negative coefficient reverses the sign

Step-by-step explanation:

7-c<1

-c<-6

c>6

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3 years ago