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3 years ago

A piece of ribbon was 20cm long Jodie needed to cut 1/4of ribbon how long wan her piece if ribbon

Mathematics

1 answer:

ELEN [110]3 years ago

5 0

You can divide 20 by 4 to find the answer to how much she cut off, which is 5cm. What's left is 15cm.

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I beg anybody please

statuscvo [17]

Answer:

if no one answers pic b cuz i got good luck

Step-by-step explanation:

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3 years ago

If sin(x) = cos(y) for acute angles x and y, how are the angles related?

Vesnalui [34]

Answer:

b. complementary

Step-by-step explanation:

-Complementary angles are angles that add up to 90°.

-These are usually the two acute angles in the right triangle.

#To verify, lets take the two angles 30° and 60°:

$Cos \ 60\textdegree=0.5\\\\Sin \ 30\textdegree=0.5\\\\\therefore Sin \ 30\textdegree=Cos \ 60 \textdegree=0.5$

#We can reverse as:

$Sin \ 60\textdegree=0.86603\\\\Cos \ 30\textdegree=0.86603\\\\\therefore Sin \ 60\textdegree=Cos \ 30\textdegree=0.86603$

Hence, two angles are said to be complimentary if they sum up to 90°.

6 0

3 years ago

How would I solve this?

m_a_m_a [10]

Answer:

3(6)-1

----------------

2(6)+1

Step-by-step explanation:

r(x) = 3x-1

s(x) = 2x+1

r(6) / s(6)

r(6) = 3(6)-1

s(6) = 2(6)+1

Putting r(6)/ s(6)

3(6)-1

----------------

2(6)+1

8 0

3 years ago

Annalise withdraws $22.50 each day from her account for a week. How can you represent the change in her account after 2 weeks?

nadya68 [22]

Answer: She would have $315

Because there are 7 days in a week so you multiply 22.50 by 7 and you get 157.5, Then because she does it for two weeks you multiply 157.5 by 2 and you get 315

Hope this helps

8 0

3 years ago

Read 2 more answers

Pete, Chris, and Dina realized that the number of A’s they each received on their report cards were in a ratio of 4:2:5. If Pete

Fiesta28 [93]

Answer:

A's received by Dina is 35.

Step-by-step explanation:

Given

number of A’s received by Pete, Chris, and Dina on their report cards were in a ratio of 4:2:5.

Let the

A's received by Pete = 4x

A's received by Chris = 2x

A's received by Dina = 5x

This, is done so that ratio of 4:2:5 remains intact.

Now, given Pete got 14 more A’s than Chris got

Thus, writing it mathematically

A's got by Pete = A's got be Chris + 14

we will be using A's got Pete and Chris in term of x as defined above

4x = 2x+ 14

=> 4x - 2x = 14

=> 2x = 14

=> x = 14/2 = 7

A's received by Dina = 5x = 5*7 = 35( Answer).

6 0

3 years ago