3 years ago

Larry played the drums for 3 and 1/8 hour each day while five day band camp also played the marimba 1 and 3/5

Mathematics

1 answer:

12345 [234]3 years ago

7 0

Answer:

20 23/24 hours

Step-by-step explanation:

5*(3 1/8)+2*(1 3/5)

5*(25/8) + 2*(8/3)

125/8 + 16/3

375/24 + 128/24

=503/24

=20 23/24

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2x(8+7)-6/2x(9-3) evaluate

Katarina [22]

Ok so assuming that the 'x' means multiply and not 'x' as in placeolder we do

PEMDAS
parenthaseees
exponents
multipilcation or division
additon or subtraction

parethasees simplify first
(8+7)=15

(9-3)=6

now we have
2x(15)-6/2x(6)
multiply
2x15=30

6/2x6=36/2=18

now we have
30-18
12

answer is 12

6 0

4 years ago

Read 2 more answers

Pls help ASAP

kondaur [170]

Answer:

10 ml of a 72% solution, 20 ml of a 54% solution

Step-by-step explanation:

x ml - amount of a 72% solution

y ml - amount of a 54% solution

$\left \{ {{x+y=30} \atop {72x+54y=30*60}} \right.$