All categories

3 years ago

Evaluate 21/a+4 when a=3

Mathematics

2 answers:

posledela3 years ago

7 0

Answer:

Step-by-step explanation:

Follow the order of operations, PEMDAS.

First, divide, then add. Plug in 3 for a in the given expression:

21/(3) + 4

Divide, then add:

(21/3) + 4

7 + 4 = 11

11 is your answer.

DochEvi [55]3 years ago

5 0

Answer:

Step-by-step explanation:

All you have to do is plug in a. In this case, a=3.

21/a+4

21/(3)+4

21/3+4

7+4

If this helps please mark as brainliest

You might be interested in

How to solve the equation 3x - 2y = 6 for y in terms of x

Klio2033 [76]

3x - 2y = 6
-2y = -3x + 6
y = (-3/-2)x + 6/-2
y = 3/2x - 3

6 0

3 years ago

CEREAL of the 35 types of cereal sold in a store, 15are advertised to be whole grain. What fraction, in simplest form, of the ce

Vesnalui [34]

Answer:

The answer is 3/7

Step-by-step explanation:

Find the GCD of both 35 and 15. This is 5.

Then, divide the numerator and denominator by the GCD.

15 ÷ 5/ 35 ÷ 5

This equals 3/7.

6 0

3 years ago

A chef at a restaurant uses 22 pounds of butter each day. About how many grams of butter does theA chef at a restaurant uses 22

Vesnalui [34]

Step-by-step explanation:

1 pound = 453.592 grams for approximate result we can use 454 so

We have to find 22 pounds into grams

= 454 x 22 = 9988 grams

7 0

3 years ago

Need math help please

GREYUIT [131]

Answer:

Step-by-step explanation:

7 0

2 years ago

Please hurry I need to pass this class

Dvinal [7]

Answer:

$\displaystyle m=\frac{-3}{4}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Reading a Cartesian plane
Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point A(0, 8)

Point B(4, 5)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: $\displaystyle m=\frac{5-8}{4-0}$
[Fraction] Subtract: $\displaystyle m=\frac{-3}{4}$

4 0

3 years ago