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3 years ago

Which real-world context could be represented by 9 +(-4) + 3?

Mathematics

1 answer:

Alenkinab [10]3 years ago

8 0

Answer:

A store requires masks. 9 masked people enter but 4 remove their masks. The speaker plays a reminder to keep your mask on. 3 people put their mask back on.

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There are 80 people waiting to tour the science museum. The tour guide takes 4 groups of 16 people each. The remaining people wi

Anna11 [10]

Answer:

16 people

Step-by-step explanation:

Given that :

Number of people to tour = 80

Number per group = 16

Number of groups = 4

Total number of people who make up the entire groups :

Number per group * number of groups

16 * 4 = 64

The number of people in the last tour group :

80 - 64

= 16 people

7 0

3 years ago

HELP ASAP!!!!!!!!!!!

ycow [4]

Answer:

should be 30

Step-by-step explanation:

triangles have 180°

if x is 30

2x is 60

the other angle is 90

add those all together and you get 180°

4 0

3 years ago

Which property of equality would be used to solve the equation 59 = x-26?

adell [148]

Answer:

addition property of equality

Step-by-step explanation:

59 = x-26

We add 26 to both sides using the addition property of equality

5 0

3 years ago

Read 2 more answers

Which expression represents the distance between the points (11, 4) and (5,8)?

antiseptic1488 [7]

Answer:

$\displaystyle d = 2\sqrt{13}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)

Algebra II

Distance Formula: $\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Point (11, 4) → x₁ = 11, y₁ = 4

Point (5, 8) → x₂ = 5, y₂ = 8

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formula]: $\displaystyle d = \sqrt{(5-11)^2+(8-4)^2}$
[√Radical] (Parenthesis) Subtract: $\displaystyle d = \sqrt{(-6)^2+(4)^2}$
[√Radical] Evaluate exponents: $\displaystyle d = \sqrt{36+16}$
[√Radical] Add: $\displaystyle d = \sqrt{52}$
[√Radical] Simplify: $\displaystyle d = 2\sqrt{13}$

4 0

3 years ago

Write the statement as an absolute value equation or inequality n is no more than 9 units from 7

Ipatiy [6.2K]

Its asking to find an answer between 9 and 7 so the answer would be 8

8 0

4 years ago