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spayn [35]
3 years ago
13

Lousina has 4 yards of fabric. she uses 2/5 yard of fabric to make a doll dress. How many doll dresses could Lousina make with t

he fabric?
Mathematics
1 answer:
Eduardwww [97]3 years ago
6 0

Answer:

10 doll dresses

Step-by-step explanation:

Number of doll dresses = Length of fabric ÷ length of yard used for one doll

                                       = 4  ÷ (2/5)

                                       = 4 *  \frac{5}{2}\\\\= 2 * 5\\= 10

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The credit remaining on a phone card (in dollors) is a linear function of the total calling trime made with the card ( in minute
KATRIN_1 [288]

After 85 minutes of calls, there are $27.25 left on the card.

<h3>What is the remaining credit after 85 minutes of calls?</h3>

A linear equation in slope-intercept form is:

y = a*x + b

Where a is the slope.

If the line passes through two points (x₁, y₁) and (x₂, y₂) the slope is:

a = \frac{y_2 - y_1}{x_2 - x_1}

In this case, we know that the line passes through the points (22, 36.7) and (52, 32,20)

(points of the form (time, dollars)).

So the slope is:

a = \frac{32.2 - 36.7}{52 -22} = -0.15

The linear equation is then:

y = -0.15*x + b

To find the value of b, we use the point (22. 36.7)

36.7 = -0.15*22 + b

36.7 + 0.15*22 = b = 40

Then the linear equation is:

y = -0.15*x +40

The amount remaining in the credit card after 85 minutes is given by evaluating the above equation in x = 85.

y = -0.15*85 + 40 = 27.25

This means that after 85 minutes of calls, there are $27.25 left on the card.

If you want to learn more about linear equations:

brainly.com/question/1884491

#SPJ1

7 0
2 years ago
Check all the statements that are true: A. If a relation is symmetric, it cannot be anti-symmetric. B. The equality relation on
kogti [31]

Answer:

See explaination

Step-by-step explanation:

B. The equality relation on the real numbers is an equivalence relation.

This statement is true

C. If RR is a reflexive relation on a set S, then any two RR- related elements of S must also be R2R2 related.

This statement is true

F. The less than or equal relation on the real numbers fails to be an equivalence relation because it is reflexive and transitive but not symmetric

This statement is true

H. If RR is an equivalence relation, then R2

This statement is true

4 0
3 years ago
3x + 40 = 11x -24<br><br> What does x equal?
pogonyaev
First, you would have to do 11x + 3x Since you're combining like terms.

Now your problem is 14x + 40 = -24

Now you would do 40 - -24 which is now 40+24 and equal to 64.

Now you divide 14 by 64 and you get 4.5
4 0
3 years ago
Read 2 more answers
Q + 601 = –104 what is the answer
Nezavi [6.7K]

Answer:

Q + 601 = -104

Subtract 601 from both sides

Q = -705

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3 years ago
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A while back, either James borrowed $12 from his friend Rita or she borrowed $12 from him, but he can’t quite remember which. Ei
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The answer is x=42.8+- (plus or minus) 12

So he should either have $30.80 or $44.80 left 
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3 years ago
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