What is the value of z in the equation 3z - 7 = 14?

Mathematics

1 answer:

baherus [9]3 years ago

5 0

1st add 7 to both sides : 3z = 21, 2nd divide both sides with 3: z = 7

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A and b are positive integers and a–b = 3. Evaluate the following: 27^ (1/3 b)/9^ (1/2 a)

maxonik [38]

Answer:

1/27

Step-by-step explanation:

27^(b/3)/9^(a/2) = (27^(1/3))^b/(9^(1/2))^a = (3^b)/(3^a) = 3^(b-a)

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Question: Which number is divisible by 5 and 10?

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Answer:

9,450

Step-by-step explanation:

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The length of a rectangle is 5 more than twice the width. the perimeter is 130 inches. what is te area

Brut [27]

The length of a rectangle:
L = 2 W + 5
The perimeter:
P = 2 L + 2 W
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120 = 6 W
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Finally the area:
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3 0

3 years ago

Read 2 more answers

Noor brought 21 sheets of stickers. She gave 1/3 of a sheet to each of the 45 students at recess. She wants to give teachers 1 1

Tamiku [17]

Answer:

$\frac{3}{2}t+15\leq 21$

Step-by-step explanation:

Let t represent the number of teachers.

We have been given that Noor gave 1/3 of a sheet to each of the 45 students at recess.

Let us find the number of sheets given to students by Noor by multiplying the total number of students by the part of sheet given to each student.

$\text{Number of sheets given to 45 students}=45\times \frac{1}{3}$

$\text{Number of sheets given to 45 students}=15$

So, Noor gave 15 sheets to 45 students.

We have been given that Noor wants to give $1\frac{1}{2}=\frac{3}{2}$ sheet to each teachers, so the number of sheets given to t teachers will be $\frac{3}{2}t$ .