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2 years ago

Ast week, a coral reef grew 20.4mm taller. How much did it grow in meters

Mathematics

2 answers:

sergij07 [2.7K]2 years ago

7 0

Answer:

0.0204 meters

Step-by-step explanation:

In-s [12.5K]2 years ago

7 0

Answer:

0.0204

Step-by-step explanation:

1 metre=1000 metres

x = 20.4

cross mutiply

20.4/1000

0.0204

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Material for a dress costs £5.50 per metre. find the cost of 10cm and 70cm

Zielflug [23.3K]

Answer:

The cost of 10 cm and 70 cm are £0.55 and £3.85 respectively.

Step-by-step explanation:

Material for a dress costs £5.50 per meter.

We know that, 1 meter = 100 cm.

Suppose, the cost of 10 cm material is $x$ and the cost of 70 cm material is $y$

Now, according to the ratio of "cost" to the "length of material" , we will get.......

$\frac{x}{10} =\frac{5.50}{100}\\ \\ 100x=10*5.50=55\\ \\ x=\frac{55}{100}=0.55$

and

$\frac{y}{70} =\frac{5.50}{100}\\ \\ 100y=70*5.50=385\\ \\ x=\frac{385}{100}=3.85$

So, the cost of 10 cm material is £0.55 and the cost of 70 cm material is £3.85

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2 years ago

Notebooks cost $1.39 each. What are the possible numbers of notebooks that can be purchased with $10

murzikaleks [220]

Answer:

Step-by-step explanation:

HOPE THIS HELPS

PLZ MARK BRAINLIEST

4 0

3 years ago

Read 2 more answers

Genesis’ basketball team won 32% of the games that they played this year and if they won 16 games, how many games they play this

ANTONII [103]

Answer:

$50\ games$

Step-by-step explanation:

Let

x-----> the total number of games the team played this year

Using proportion

$\frac{32\%}{16}=\frac{100\%}{x}\\ \\x=16*100/32\\ \\x=50\ games$

8 0

2 years ago

Do natural numbers have multiplicative inverse

hodyreva [135]

No,because a multiplcative inverse is when your changing a division or multiplcation sign!

6 0

2 years ago

Sidneys made $38 more than 3 times Casey’s weekly salary. If x represents Casey’s weekly salary , write an expression for sidney

Harrizon [31]

y=3x+38 is the expression for Sidney's weekly salary.

Step-by-step explanation:

Given,

Casey's weekly salary = x

Let,

y be the weekly salary of Sidney's.

According to given statement;

Sidney makes $38 more than 3 times Casey's weekly salary.

Sidney's weekly salary = 3 times Casey's weekly salary + $38

$y=3x+38$

y=3x+38 is the expression for Sidney's weekly salary.

Keywords: variable, addition

Learn more about variables at:

#LearnwithBrainly

8 0

3 years ago