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3 years ago

A rectangle measures 13 cm by 5 cm what is its area

Mathematics

1 answer:

ludmilkaskok [199]3 years ago

6 0

13*5=65 squared centimeters.

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5. Expla in why 4 is or is not a multiplicative inverse mod 10 of 7.

AnnZ [28]

Answer:

4 is not. (3 is)

Step-by-step explanation:

A number is the multiplicative inverse of 7 (mod 10) if the product mod 10 is 1.

7 × 4 mod 10 = 28 mod 10 = 8 . . . . not 1

5 0

2 years ago

A bowl contains blueberries and strawberries there are a total of 20 bares in the bowl the ratio blueberries to strawberries is

Alexus [3.1K]

Answer:

16 blueberries and 4 strawberries

Step-by-step explanation:

Given:

A bowl contains blueberries and strawberries there are a total of 20 berries in the bowl.

The ratio blueberries to strawberries is 4 to 1

Question asked:

How many of each berry are in the bowl ?

Solution:

Ratio of blueberries and strawberries = 4 : 1

Let ratio be $x$

Number of blueberries in the bowl = $4x$

Number of strawberries in the bowl = $1x=x$

As total berries in the bowl are 20 and the bowl contains both blueberries and strawberries in the ratio 4 : 1 :-

$4x+x=20\\5x=20\\$

Dividing both sides by 5

$x=4$

Number of strawberries in the bowl = $x$ = 4

Number of blueberries in the bowl = $4x$ = $4\times4=16$

Thus, there are 16 blueberries and 4 strawberries in the bowl.

5 0

2 years ago

Read 2 more answers

A bag contains

UkoKoshka [18]

Step-by-step explanation:

10/20 per try, .2multiply by 100 tries = 20

5 0

2 years ago

-x^2=-36 I need help

Gennadij [26K]

You need to first make everything positive:
x^2=36
Then you need to get the square root of each side:
x=6 or -6

Hope this helps :)

4 0

3 years ago

Identity the composite number represented by the prime factorization below

Korolek [52]

Answer:look below

Step-by-step explanation: The prime factorization of number is the break down into factors which are prime numbers (numbers without factors except 1 and itself). The factors 22 and 32 are composite numbers since they have more than 1 and itself as factors. They are not prime.

However, the factorization of 22 * 32 * 5 will equal a number. 22*32*5 = 3, 520. But it does not match the solutions given.

3 0

3 years ago

Read 2 more answers