I’ll give you brainliest, please help!

sewing a border of ribbon onto her rectangular picnic blanket. The long side of the blanket is 70cm and the short side is 40cm.

Strike441 [17]

Answer:

$220$ cm

Step-by-step explanation:

We need to find the perimeter of the rectangular blanket in this case because a border is being sewn onto the blanket. The perimeter of a rectangle can be calculated by multiplying the sum of the rectangle's length and width by 2. As an algebraic expression, that would be $2(l+w)$ , where $l$ is the rectangle's length and $w$ is the rectangle's width. We are given that $l=70$ and $w=40$ . Therefore, $2(70+40)=2*110=220$ cm of ribbon will be needed. Hope this helps!

3 0

3 years ago

Jada has a bag with tiles she pulls a tile from the bag without looking accords the shape and then puts the tile back in the bag

vova2212 [387]

What is the probablity for the number of times Jada will pull a tile wit a star?

Answer: Number of tiles pulled out of the bag by Jada = 10, so she completed 10 trials.

The outcome of each trial was star, circle or a square.

Step-by-step explanation: We can find the experimental probability of pulling each shape from the bag based on the outcomes of Jada's experiment and number of trial.

P(Star) = Number of stars/Number of trials= 5/10
P(Circles)= Number of circles/Number of trials =3/10
P(Square) = Number of Square/Number of trials = 2/10
Here, P refers to Probability of an outcome

If Jada repeats the experiment, She would likely again pull more stars than circles or square. She may get different number of stars,circles or squares but over a large number of trials, she would expect the ratio of the stars in the proportion. We can use this proportonal relationship to get the reasonable prediction about te number of times she pull different shape tiles.

Number of outcomes(10 trials) = Number of outcomes(100 trials)

Number of trials(10 trials) Number of trials (100 trials)

Numbeof stars = 5/10 =s/100
5*10/ 10*10 =50/100
Number of Circle = 3/10 = c/100
3*10/10*10 = 30/100
Number of square = 2/10 = q/100
2*10/10*10 = 20/100

If she does the experiment 100 times then she should expect to pull out 50 stars tile, 30 circles and 20 Square.

Hence, Jada pulled out the 100 tiles from the bag.

Learn more about geometry questions here-: brainly.com/question/17140560

7 0

2 years ago

A rectangular piece of paper has a width that is 3 inches less than its length. It is cut in half along a diagonal to create two

Oliga [24]

Let

x-------> the length of the rectangle

y------> the width of the rectangle

we know that

The area of the rectangle is equal to

$A=x*y$