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morpeh [17]
3 years ago
9

Samantha has 14 yards of ribbon. She wraps 12 presents and uses 5/6 yards of ribbon to decorate each present. The total amount o

f the ribbon she used is modeled in rhe diagram below. How much ribbon does samantha have left
Mathematics
1 answer:
Lesechka [4]3 years ago
3 0
Samantha will have approximately 2.3-2.4 yards of ribbon left.
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The area of the rectangular table is 18 square feet the width of the table is 3 ft what is its length
MrRa [10]

Answer:

Step-by-step explanation:

Okay, In solving to find the square feet of a rectangle, you need to know the length and the width to be able to get the answer. Length x Width = area. In this case you already know the area, so just reverse the steps. 18 Ft is the area and the width is 3ft, you’re just missing length. 18/3 = 6. 6ft is the length

6 0
2 years ago
Are these ratios equivalent?<br> 1 teacher to 9 students<br> 5 teachers to 45 students
IrinaVladis [17]

Answer: yes the ratios 1:9 and 5:45 are equivalent.

Step-by-step explanation:

1:9*5:5=5:45

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2 years ago
Write an equation in slope-intercept form of the line that is parallel to y = 5x + 12. ​
choli [55]

Answer:

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Step-by-step explanation:

7 0
3 years ago
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You are considering developing a regression equation relating a dependent variable to two independent variables. One of the vari
lys-0071 [83]

Answer:

Step-by-step explanation:

a. How many dummy variables are needed to represent the categorical variable?

We need 1 less dummy variable than outcomes for the categorical variable.

categorical variable has 2 outcomes

So, we need 2-1 = 1 dummy variable.

Answer: 1

Note: If our categorical variable had 5 outcomes, we would need 5-1 = 4 dummy variables.

b. Write the multiple regression equation relating the dependent variable to the independent variables.

Note: Depending your your professor, this can be written one of the following ways...

yhat = a + b1 x1 + bx2

yhat = b0 + b1 x1 + b2 x2

yhat = beta0hat + beta1hat x1 + betahat2 x2

where x1 is the ratio variable

and x2 is the dummy variable

c. Interpret the meaning of the coefficients in the regression equation.

b0 = the predicted value of y when x1 and x2 both equal 0.

b1 = the change in y when x1 increases by 1 unit holding x2 constant.

b2 = the predicted difference in y between the two possible outcomes of the categorical variable holding x1 constant.

7 0
3 years ago
A patient ingests 5 grams of a certain drug which
IgorC [24]

Answer:

8 hours

Step-by-step explanation:

5 - 1 = 4 grams

10% of 5 = 0.5 grams per hour

4/0.5 = 8 hours

8 0
2 years ago
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