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2 years ago

HELP PLEASE?????????????? :)

Mathematics

2 answers:

emmasim [6.3K]2 years ago

8 0

Answer:

Step-by-step explanation:

-9 + 1 = -8

-4 x -8 = 32

Ghella [55]2 years ago

4 0

The answer is 32
Your welcome

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The mean age of 5 people in a room is 36 years. A person enters the room. The mean age is now 39. What is the age of the person

____ [38]

Your answer is 36.5. Hope this helps!

7 0

3 years ago

On a class trip to the museum,5/8 of the students saw the dinosaurs and 7/8 of the students saw either the jewelry collection or

inessss [21]

$\frac{2}{8}$ of students only saw jewelry collection

Solution:

Given that, On a class trip to the museum,5/8 of the students saw the dinosaurs

7/8 of the students saw either the jewelry collection or the dinosaurs

To find: Fraction of students only saw jewelry collection

From given statement,

Fraction of students saw dinosaur = $\frac{5}{8}$

Fraction of students saw either the jewelry collection or the dinosaurs = $\frac{7}{8}$

Therefore,

Fraction of students only saw jewelry collection = Fraction of students saw either the jewelry collection or the dinosaurs - Fraction of students saw dinosaur

$\rightarrow \frac{7}{8} - \frac{5}{8} = \frac{7-5}{8} = \frac{2}{8}$

Thus $\frac{2}{8}$ of students only saw jewelry collection

8 0

3 years ago

Ummm how do you do this two questions?

guajiro [1.7K]

Answer:

Here are the formulae you need. Just plug in the values you have and you will get your answers.

Area of a triangle: 1/2*base*height

Volume of a rectangular prism: length*width*height

Volume of a cylinder: pi*r^2*height

Step-by-step explanation:

8 0

2 years ago

There were 39 balloons at the beginning of a party by the end of the party k of them had popped using k write an expression for

nadezda [96]

If (x) was the variable for balloons left not popped then
39-k=x

6 0

3 years ago

PLEASE HELP I NEED HELP WITH THIS PLEASE PLEASNEOLEASBEJEJXNFBDJFB

Papessa [141]

9514 1404 393

Answer:

(5x -8) +96 +(5x +2) +4x +4x = 540

x = 25

Step-by-step explanation:

It usually works to follow directions. The sum of angles is ...

(5x -8) +96 +(5x +2) +4x +4x = 540 . . . . An equation

18x +90 = 540 . . . . . . . . . collect terms

x +5 = 30 . . . . . . . . . divide by 18

x = 25 . . . . . . . . subtract 5

7 0

2 years ago