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olchik [2.2K]
3 years ago
13

What is 3b + 12 divided by 2

Mathematics
2 answers:
goldenfox [79]3 years ago
6 0
3(b+2) hope this helps
sp2606 [1]3 years ago
3 0

the answer is 3(b+2)

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Multiply (x + 2y)(x2 − xy + 3y).
erma4kov [3.2K]

Answer:

{x}^{3}  +  {x}^{2} y + 3xy - 2x {y}^{2}  + 6 {y}^{2}

4 0
3 years ago
8. A right triangle has a perimeter of 60 cm. The legs have a ratio of 5:12. The hypotenuse is twice the
lakkis [162]

Answer:

a=24

b=10

c=26

Step-by-step explanation:

Perimeter is the sum of the sides (a+b+c=60)

The legs (a and b) have a ratio of 5:12, which means that 5a=12b, which can be simplified to \frac{5}{12} a=b, where b will be the smaller leg.

The hypotenuse will be double the smallest leg, 2b, increased by 6 meters, giving us an equation of c=2b+6

Let's plug these in to get one variable:

a+b+c=60\\a+b+2b+6=60\\a+\frac{5}{12}a+2(\frac{5}{12}a)+6=60\\\frac{12}{12}a+\frac{5}{12}a+\frac{10}{12}a+6=60\\\frac{12}{12}a+\frac{5}{12}a+\frac{10}{12}a=54\\\frac{27a}{12}=54\\27a=648\\a=24

Now that we have a, we can plug it in to our previous equations to find our other sides:

5a=12b\\5(24)=12b\\120=12b\\10=b

c=2b+6\\c=2(10)+6\\c=20+6\\c=26

Double-checking:

a+b+c=60\\24+10+26=60\\60=60

7 0
3 years ago
Mario has 3.875 liters of juice at the beginning of the day he drinks 2.79 liters during the day how much juice is left over st
katen-ka-za [31]

Answer:

The juice left at the end of the day is 1.085 liters.

Step-by-step explanation:

Juice at the beginning of the day: 3.875 liters

Juice drink by Mario during the day: 2.79 liters

Juice left at the end of the day = Juice at the beginning of the day - Juice drink by Mario during the day

                                                  = 3.875 - 2.79

                                                  = 1.085 liters

7 0
4 years ago
Read 2 more answers
PLEASE HELP ME!!!!!!​
maria [59]

B or D so sorry these ones are confusing written like this.

Gave a lovely weekend.

3 0
3 years ago
I need help on solving.
bulgar [2K]

Answer:

x =  - 1 \\  - 2 + 0.4y = 0.4 \\ 0.4y = 0.4 + 2 = 2.4 \\ y = 2.4  \div 0.4 = 6 \\ y = 1 \\ 2x + 0.4 = 0.4 \\ 2x = 0.4 - 0.4 = 0 \\  x = 0

6 0
3 years ago
Read 2 more answers
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