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iVinArrow [24]
3 years ago
15

Emily spent $55 from her savings account on a new dress explain how to describe the change in emilys savings balance in two diff

erent ways
Mathematics
1 answer:
mote1985 [20]3 years ago
8 0
You can either express the decrease that happened in the account savings by integers. To do this you simply subtract 55$ from the initial amount in the account. This is expressed as:
initial amount - 55$

or, you can express the decrease in the form of percentage by calculating how much is 55$ from the total amount. This is expressed as:
(5/initial amount) x 100
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1/4x – 2 = 3/8 Please show an equation and work. :)
Julli [10]
1/4x - 2 = 3/8

First, to start solving this, we can rearrange our fraction. Let's take 1/4x and change it to x/4. Why? Well, a variable can also be considered as the number 1.
\frac{x}{4} - 2 =  \frac{3}{8}

Second, now we can continue solving for our variable (x). Let's add 2 to each side.
\frac{x}{4} =  \frac{3}{8} + 2

Third, let's simplify 3/8 + 2. (3/8 + 2 = 2.375 =19/8)
\frac{x}{4} =  \frac{19}{8}

Fourth, continue trying to get the variable by itself. Multiply each side by 4.
x =  \frac{19}{8} \times 4

Fifth, let's simplify 19/8 × 4. This is simple. Leave the denominator be and just do 19 × 4, which equals 76.
x =  \frac{76}{8}

Sixth, our final step is to simplify our fraction. To do so, we will need to list the factors of the numerator and denominator and find the greatest common factor (GCF).

Factors of 76: 1, 2, 4, 19, 38, 76
Factors of 8: 1, 2, 4, 8

Since 4 is our first common factor, it is considered our GCF.

Seventh, now let's divide. Divide both the numerator and denominator by the GCF (4) to create our new simplified fraction.
76 \div 4 = 19 \\ 8 \div 4 = 2

Answer in fraction form: \fbox {x = 19/2}
Answer in decimal form: \fbox {x = 9.5}
8 0
3 years ago
What is negative five over eight -5/8 b = 10
anastassius [24]
- \frac{5}{8}\cdot b = 10 \ \ \ |multiply\ both\ sides\ by\ (-\frac{8}{5}) \\\\(-\frac{8}{5})\cdot (- \frac{5}{8})\cdot b =(-\frac{8}{5})\cdot 10\\\\b=(-8)\cdot 2\\\\b=-16


8 0
3 years ago
Make sure to explain please! Evan's mother used 1/3 pound of beef, 1/2 pound of shrimp, and 3 pounds of pasta to make dinner for
AVprozaik [17]
I believe this should be on coursehero!
8 0
3 years ago
Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed i
Alla [95]
I think 4.2 x 10^6 is the answer you're looking for.
5 0
3 years ago
Read 2 more answers
A point is randomly chosen in the diagram shown below.
Anni [7]

Answer:

The likelihood that a point chosen inside the square will also be inside the circle: 78.54%

Step-by-step explanation:

  • Let x is the side of the suqare

=> the area of the square is: x^{2}

  • Let d is the diameter of the circle

=> the area of the circle : \frac{1}{4} d^{2}π

However, d=x because of the square property  

<=> the area of the circle : \frac{1}{4} x^{2}π

The likelihood that a point chosen inside the square will also be inside the circle:

the area of the circle / the area of the square

= \frac{1}{4} x^{2}π / x^{2}

= \frac{1}{4} π *100%

= 0.7854 * 100%

= 78.54%

8 0
3 years ago
Read 2 more answers
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