Mathematics Middle School

Evaluate 3z- 3 when z=7

a 34
b 21
c 18

Answers

Answer 1

Answer: C (18)

Step-by-step explanation: If we plug in 7 for z, 3 times 7 is 21. 21-3=18.

Answer 2

Answer:

C

Step-by-step explanation:

Since z = 7 the equation would be 3(7) - 3

You would multiply 3 with 7 and get 21

Then you would subtract 3 from 21 and get 18

hope this helps.

Related Questions

The lateral surface area of a hollow cylinder is 1320 cm².The radius of it‘s base is 7cm. Find the height and volume of the cylinder.

Answers

I think it The curved surface area of a cylinder is 1320 cm 21cm. :)
1320cm and 21cm I think this is right

Help me!!!!!!! I will give brainliest for first one with correct answer.

Answers

Answer: The answer is

YesNoNoYesYesYes

Step-by-step explanation:

I am pretty sure this is correct:)

Answer:

yes

no

yes

yes

no

yes

yes

Step-by-step explanation:

i really need help i forgot about this topic

Answers

Answer: D!!!!!!

Step-by-step explanation:

YOUR ANSWER IS D! YWW

1/3 (x - 10) = -4, x

What is x equal to?

Answers

A n s w e r :

x  =  - 2

x= -2 is the answer

Zach bought a car for $45,000. In three years its value decreased to $25,000. What is the percent of decrease? Round to the nearest whole percent.

Answers

Answer: 65 or 60 percent is the right answer

It’s 65 or 60 hope that helps

Explain how to find the missing side when given two similar figures and side lengths. (think about what you did today and explain how you found the missing side length, do not just put one word)

Answers

Answer:

You multiply by doubling the number

Multiply by adding(double) the number

8. A group of 106 campers sits in a big circle. The camp leader tells them to
say “hello” to each camper sitting to their left and right. What is the total
number of times the campers say “hello”?

Answers

Answer: 212

Step-by-step explanation: 106*2=212

You have to double it because each camper has to say hello twice.

Graph y=2x+30
plz halp

Answers

Answer:

xmin:-10     xmax: 10     ymin:-10     ymax: 10

Step-by-step explanation:

I’m pretty sure this is the answer

please help
will give brainly

Answers

answer: C (x, y) ➔ (0.375x, 0.375y)

Answer:

a

Step-by-step explanation:

Wich value cannot represent the probability of an event occurring?
1. 1/100
2. 0.29
3. 3/2
The dash means over

Answers

Answer:

The answer is option 3.

Step-by-step explanation:

In probability, numeration of fraction cannot be greater than the denorminator. Therefore, 3/2 is unable to represent the probability of the event.

PLEASE HELP ME!!! (Image Below)
WHAT DO I DO???? I AM SO CONFUSED!!

Answers

C and D!
Please let me know if you want explanation.

Answer:

C and D

Step-by-step explanation:

none needed

1) Sandra bought coffee in a cup shaped like a cylinder with a radius of 10 centimeters and a height of 20 centimeters. Sandra fills the cup with coffee, but she leaves 5 centimeters of space at the top to have room for cream. What is the volume of coffee in her cup?
10 points
A. 4,000 cm^3
B. 4,710 cm^3
C. 5,234 cm^3
D. 6,500 cm^3

Answers

The answer for this question is B

The volume of coffee in her cylindrical cup is, 4700 cubic centimeters.

The correct option is B.

What is a cylinder?

A cylinder is a 3D solid form made up of two bases that are parallel and identical and are connected by a curving surface. These bases resemble spherical disks. The axis of the cylinder form is a line drawn through the center or connecting the centers of two circular bases.

Given:

Sandra bought coffee in a cup shaped like a cylinder with a radius of 10 centimeters and a height of 20 centimeters.

Sandra fills the cup with coffee, but she leaves 5 centimeters of space at the top to have room for cream.

The volume of coffee in her cylindrical cup,

= (3.14) (100) (15)

= 4710 cubic centimeters.

Therefore, the volume is, 4710 cubic centimeters.

To learn more about the cylinder;

https://brainly.com/question/16134180

#SPJ2

How is solving the equation |2x+1|=|x-7| by graphing similar to solving the equation 4x+3= -2x +9 by graphing? How is it different?

Answers

Answer:Its different

Step-by-step explanation:

Due to the first one having ( ) while the other doesn't

MATH WILL MARK BRAINLIST
1) find the function AND solution of (y = 5x - 4 when x = 5) (y = - 2/5 x + 3/8 when x = 1/3) (y = 3x + 12 when x = 4)
-
2) Show set of data that is a function using at least 5 domain values and 5 range values. It can be shown
in a format of your choice (graph, table, set notation).

Answers

Answer:

Step-by-step explanation:

1)

y = 5x-4 when x=5

y = 5*5-4

y = 25-4

y = 21

y = -2/5x + 3/8 when x = 1/3

y = -2/5 * 1/3 + 3/8

y = -2/15 + 3/8

y = -6/120

y = -1/20

y = 3x + 12 when x = 4

y = 3*4 + 12

y = 12 + 12

y = 24

Pls help!! Write the precent as a fraction or mixed number in simplest form. (reduce)
83%

Answers

83/100 would be the correct answer
Fraction is 83/100 simplified

Which expression is equivalent to 2(a+2b)-a-2b

3a+2b
3a-2b
a-2b
a+2b

Answers

Answer:

The answer is the fourth option, a+2b

Step-by-step explanation:

Fourth option
Answer : D

PLS HELP!! I WILL MAKE BRAINLIEST

Answers

Answer:

so can you put it more fouces to the answer

Step-by-step explanation:

Which statement about 2(x+4) is true?
A. 2(x + 4) is a quotient
B. 2(x + 4) has four terms
C. 2(x + 4) is a product
D. 2(x + 4) is a product of three factors

Answers

Answer:

the answer to the question is option A

Answer

it is A

Step-by-step explanation:

Please help me I don’t know which one it is

Answers

The answer to this should be 5

Please help me answer please and please actually answer please

Answers

Answer:

the first one

Step-by-step explanation:

Answer:

it has the volume of 1 unit cubit

Step-by-step explanation:

hleeepppppppppppppppppppp me
i will give out brainiest

Answers

Answer:

68°

Step-by-step explanation:

opposite angles

made by two straight lines.

Answer:

r= 68 degrees

Step-by-step explanation:

because they are adjacent, the angle measurements are the same

Margo can purchase tile at a store for $0.69 per tile and rent a tile saw for $54. At another store she can borrow the tile saw for free if she buys tiles there for $1.29 per tile. How many tiles must she buy for the cost to be the same at both stores?


Margo must buy _______ tiles for the cost to be the same at both stores.

Answers

X=60 She must buy 60 tiles

Pls help due in 15 mins!!

Answers

your first constant of propotionality is 10

The  second constant of propotionality 5

Answer:

to late

Step-by-step explanation:

Predict how many times you would expect to land on a 5 if you roll a standard number cube 36 times.

Answers

Since we're dealing with probability, you have a 1/6 chance to land the dice on 5. and since 6 is a multiple of 36, we can conclude that

1/6 = ? / 36

6 x 6 = 36

6 x 1 = 6

Answer: you should approximately roll a 5 about 6 times

Answer:

6

Step-by-step explanation:

The probability of getting a '5' on one toss is 1/6.  Thus, if you roll the cube 36 times, the predicted number of '5's will be 36(1/6) = 6

at a summer camp 23 of the boys and 17 of the girls can swim there nine boys 11 girls at the camp who cannot swim. what is the ratio or the number of children who can swim to the number of children who cannot swim.

Answers

Answer:

4×30+5×30=120+150=270

Step-by-step explanation:

looking at the last row, we can see that the total number of students will be 4×30+5×30=120+150=270

What is the value of -2 176 - 11/4 + 1 3/4? *​

Answers

Answer:-4351/2

Step-by-step explanation:

can someone plsss help me with this? TYSM

Answers

Answer: D i think sorry if its not right

Step-by-step explanation:

Please help, I don’t understand this. Will give brainliest

Answers

i think it’s the 2nd one

1. Denise makes 21 quarts of ice cream. She stores the ice cream in containers
that hold 1 quarts of ice cream. How many containers does she need?​

Answers

21 containers for the ice cream
21/1=21
21 containers

When you know the original price of an item and the price you paid at a register, how can you find the tax rate?

Answers

You have to calculate
You can calculate the answer that how to find the answer
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