Need urgent help on this! my grade is falling :(

Mathematics

2 answers:

jarptica [38.1K]3 years ago

8 0

I think the answer is b

ludmilkaskok [199]3 years ago

6 0

Answer:

the answer is b

Step-by-step explanation:

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Solve for z : 4z-6/4=3z+1

ruslelena [56]

Note the equal sign, what you do to one side, you do to the other side. Isolate the variable z.

First, subtract 3z and add 6/4 to both sides

4z (-3z) - 6/4 (+6/4) = 3z (-3z) + 1 (+6/4)

4z - 3z = 1 + 6/4

Simplify. Note that 1 = 4/4.

z = 4/4 + 6/4

Simplify. Combine like terms

z = 10/4

Simplify. Change the improper fraction into mixed fraction and simplify.

z = 10/4 = 2 2/4 = 2 1/2

7 0

4 years ago

Cutiepies for you :)) and btw THANK YOU FOR HELPING ME

ozzi

1) 20*3/5, use the rule a*b/c=ab/c

$\frac{20*3}{5} =\frac{60}{5} =12$

D is your answer

2) 1/5*8 =1.6, and 1.6 as a fraction is $1\frac{3}{5}$

Just gonna show real quick how I converted this decimal into a fraction...

Split the number into its whole number component and decimal component, 1.6=1+0.6. .6=6/10, and 1 is a whole number, and 6/10 reduced is 3/5. So your answer is $1\frac{3}{5}$ .

3) Two thirds of 93 is 62, and you can word this as 2/3*93=62.

4) Three-fifths of 30 is 18, like the other problem, 3/5*30=18.

5) She has one liter cotainers and each of them are 2/3rds full. So to find how much sports drink is in 5 of the containers, you have to do 5*2/3= $3\frac{1}{3}$ . You multiply 2/3 times 5 because each container has 2/3rds, and there are five containers.