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3 years ago

Help plz:))) I’ll mark u brainliest

Mathematics

1 answer:

eimsori [14]3 years ago

3 0

X=-1 give me thanks :)

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Dave is a builder. Yesterday he made mortar mix. He used 24kg of sand and 5kg of cement. Today he needs to make the same type of

polet [3.4K]

Answer:

7.5 kg

Step-by-step explanation:

Ratio of sand to cement = 24kg : 5kg

Today he needs to make the same type of mortar mix, but he will use 36kg of sand.

Let

x = quantity of cement used

Ratio of sand to cement = 36 kg : x kg

Equate both ratios

24 kg : 5 kg = 36 kg : x kg

24/5 = 36/x

Cross product

24 * x = 5 * 36

24x = 180

x = 180/24

x = 7.5

x = quantity of cement used = 7.5 kg

4 0

3 years ago

What is the common ratio of the geometric sequence?

DanielleElmas [232]

Answer:

1/2

Step-by-step explanation:

16,8,4,2

it is decreasing by 2 each time

or we can call it multiplying by 1/2

16* 1/2 = 8

8* 1/2 = 4

4* 1/2 =2

4 0

4 years ago

Find all the real cube roots of -0.000125

Arturiano [62]

We calculate the cube root,

we know that

-0.000125-------------> is equal to -125/1000000-------->(-5³/10<span>^6)
</span>∛(-5³/10^6) = -5/10^2-------> -5/100--------> -0.05

The answer is -0.05

3 0

4 years ago

Read 2 more answers

Stickers are sold in packs of 10 stickers or as singles. Miss Allen wants to buy 33 stickers. What are all of the ways she can b

zhuklara [117]

33+10=43 or she could spend 33-10=23

5 0

3 years ago

Read 2 more answers

HELP PLEASE!! Which of the following best describes the graph below? A. it us a one-to-one function B. it us a function but it i

masha68 [24]

The correct statement regarding the function $y = \sqrt{x + 2}$ is given by:

A. it us a one-to-one function.

<h3>What is the missing information?</h3>

This problem is incomplete, but researching it on the internet, the function used is $y = \sqrt{x + 2}$ .

<h3>Is it a function?</h3>

For $y = \sqrt{x + 2}$ , each value of x is associated with only one value of y, that is, the graph has <u>no vertically aligned points</u>, hence it is a function.

<h3>Is the function one-to-one?</h3>

Each value of y is also associated with only one value of x, that is, the graph has <u>no horizontally aligned points</u>, hence it is a one-to-one function, and the correct statement is given by:

A. it us a one-to-one function.

More can be learned about functions at brainly.com/question/24808124

#SPJ1

8 0

2 years ago