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vladimir2022 [97]
2 years ago
15

PLEASE HELP ME WITH THIS FOR BRAINLIEST AND A UNBURNED COOKIE

Mathematics
2 answers:
schepotkina [342]2 years ago
8 0
I think it would be 43. 8 times 5 is 40, plus 3 would equal 43. if it’s not that then it would be 55. (11 times 5)
Amiraneli [1.4K]2 years ago
3 0

Answer:

43

Step-by-step explanation:

ur replacing z in 3+8z with 5 and 8z is the same thing as 8xZ so the new equation is

3+8x5

3+40

43 is your answer

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An automatic doughnut machine can produce 1500 doughnuts in 9 hours.
Svetllana [295]

Answer:

1 hr, 48 minutes

Step-by-step explanation:

you can create a proportion:

doughnuts/hours = doughnut/hours (h)

1500/9 = 300/h

cross-multiply to get:

1500h = 2700

h = 27/15

h = 1 12/15, which is 1 hr, 48 minutes because 12/15 = 48/60

7 0
2 years ago
Khan academnejjdjjjdjducuucix
Lorico [155]

Answer:

Khan Academy is awesome.

Step-by-step explanation:

Khan Academy has videos to help you learn and solve problems, which is pretty resourceful.

6 0
3 years ago
Read 2 more answers
Which expression is equivalent to 4 (3n - 5)?
mart [117]

Expression 4 (3n - 5) is equivalent to <em><u>C: 12n - 20</u></em>

<h3>Further explanation </h3>

Algebraic expressions in mathematics are a combination of coefficients, numbers, variables, constants and arithmetic operations such as addition, subtraction, multiplication, and division.

The main composition of algebraic expressions are:

  • 1. phrases

algebraic forms separated by arithmetic operations

consists of one phrase (monomial) to many phrases (polynomial)

  • 2. variable

is a value that can be changed, can be in the form of letters, for example, x, y, a, b, etc.

  • 3. constants

is a fixed value, can be a number

  • 4. arithmetic operations  ⇒ +, - , : , x

Calculation operations include multiply, divide, add, substract, etc.

There are several properties in integer multiplication operations

  • 1. closed property

Multiplication between integers will produce integers too

  • 2. commutative property

a x b = b x a

  • 3. associative property

ax (bxc) = (axb) xc

  • 4. identity

ax1 = 1 x a = a

  • 5. distributive  property

*<em> addition </em>

ax (b + c) = axb + axc

* <em>substraction </em>

ax (b-c) = axb - axc

We can use distributive  property  of <em>substraction   </em>to solve the problem

\displaystyle =4(3n-5)\\\\=4x3n - 4x5\\\\=12n-20

"Equivalent to" means having the same value.

From the answer choices , which produce the same expression is C. 12n-20

<h3>Learn more </h3>

6 squared divided by 2 (3) +4

brainly.com/question/376058

an algebraic expression

brainly.com/question/20988

brainly.com/question/2285423

Keywords: PEMDAS, arithmetic operations, multiply, Parentheses, equivalent to

5 0
3 years ago
Read 2 more answers
Cot? 2x + cos2x + sin’ 2x = csc? 2x<br> Need help with 40
kkurt [141]

Answer:

\rule{100mm}{0.1mm}

    \cot^2(2x)+\cos^2(2x)+\sin^2(2x)=\csc^2(2x)

\dfrac{\cos^2(2x)}{\sin^2(2x)} +[(\cos^2(2x)+\sin^2(2x)]=\csc^2(2x)

                               \dfrac{\cos^2(2x)}{\sin^2(2x)} +1=\csc^2(2x)

                    \dfrac{\cos^2(2x)+\sin^2(2x)}{\sin^2(2x)}=\csc^2(2x)

                                    \dfrac{1}{sin^2(2x)} =\csc^2(2x)

                                     \boxed{\csc^2(2x)=\csc^2(2x)} ✔

\rule{100mm}{0.1mm}

4 0
3 years ago
Simplify<br><br><br>Rewrite the expression in the form aⁿ<br><br><br>a⋅a⁷=
dem82 [27]
A•a^7 = a^8 (add the power (n=1+7=8))
7 0
3 years ago
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