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1 year ago

7

Mrs. Start's class paid $5.60 for 4 5 yd of lace for an art project. Later, the class decided to buy another 7 3 4 yd of the sam

e lace to make costumes for the school musical. How much money do they need for this second purchase?

1 answer:

Damm [24]1 year ago

3 0

The answer to your question, is 54.25.

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The price of a pair of headphones is $39.99 before tax. Dalton bought the headphones for 30% off. He then paid 6% sales tax on t

dimaraw [331]

Answer:

part A 1.68

part B 29.67

Step-by-step explanation:

First you multiply $39.99 dollars and 0.30 = $11.9970 you round this to $12.00

After you apply the discount $39.99 - $12.00 = 27.99

Next you must multiply 27.99*0.06 =1.6794 and round to 1.68 to get tax

Last you add $27.99 and 1.68 to get a total of $29.67 for the headphones

Plz give brainliest i didnt look it up.

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2 years ago

A linear regression equation is calculated for a sample of n = 20 pairs of X and Y values.

Nata [24]

Answer: B) 18

Step-by-step explanation:

The degree of freedom for Standard error or df(Residual) is the sample size minus the number of estimated parameters ,.

df= n - p , where n= sample size , p = number of parameters.

According to the given problem , we have

Sample size : n=20

Number of parameters (x and y ): p= 2

Then, the df value for the standard error of estimate will be :

df= n-p =20-2=18

Thus , the df value for the standard error of estimate is 18 .

Hence, the correct answer is B) 18 .

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2 years ago

The school playground is in the shape of a pentagon. There is a drinking fountain at each of the 5 corners of the playground. Th

ipn [44]

The answer is 21 save

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1 year ago

Jessica drinks 56 cup of milk for breakfast every day. How many cups of milk has Jessica drunk after 8 days?

Tom [10]

56 x 8 = 448

she drinks 448 cups of milk after 8 days

4 0

2 years ago

Read 2 more answers

If ED = 5y + 6 and DB = y + 30, find the value of y. Then find ED, DB, and EB.

Gemiola [76]

Answer:

Part 1) The value of y=6

Part 2) ED=36, DB=36 and EB=72

Step-by-step explanation:

In this problem we know that

ED=DB -----> equation A

EB=ED+DB -----> equation B

The point D is the midpoint ED

see the attached figure to better understand the problem

step 1

Find the value of y

Substitute the given values in the equation A

$5y+6=y+30$

solve for y

$5y-y=30-6$

$4y=24$

$y=6$

step 2

Find the value of ED,DB and EB

$ED=5y+6$

substitute the value of y

$ED=5(6)+6=36$

Remember that

ED=DB

therefore

$DB=36$

Find the value of EB

EB=ED+DB

$EB=36+36=72$

3 0

1 year ago