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sineoko [7]
4 years ago
14

Janice has saved $21.40. This is 1/3 of what she needs to save to buy a new piece of software. Write and solve an equation to fi

nd what is the total amount that Janice needs to save
Mathematics
1 answer:
shusha [124]4 years ago
8 0

Answer:

$64.2

Step-by-step explanation:

If she has 1/3 of the amount she needs to buy the piece of software, then we can assume that the amount she has, 21.4, can be multiplied by 3 to get the total amount of money required.

We can write it into the equation like this:

21.40(3)=c. (C stands for total cost)

Now, just solve.

21.40*3=64.2

64.2=c

She needs to save $64.2 to buy the piece of software.

Hope this helps!

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A newly launched clothing line is rapidly increasing in popularity. Every month 20% more items of clothing are sold. If 70,800 i
prohojiy [21]

Answer:

<u>212,400 items</u> were sold in 10 months.

Step-by-step explanation:

Given:

Items sold this month = 70,800

Percent Increase in every month = 20%

We need to find number of items sold in coming 10 months.

Solution:

First we will find number of items increase in each month.

number of items increase in each month can be calculated by Percent Increase in every month multiplied by Items sold this month and the divided by 100.

number of items increase in each month = \frac{20}{100} \times 70800 = 14,160

Now we will find number of item sold in 10 months.

number of item sold in 10 months is equal to sum of Items sold this month and number of items increase in each month multiplied by 10.

framing in equation form we get;

number of item sold in 10 months = 70800+10\times 14160 = 212,400

Hence <u>212,400 items</u> were sold in 10 months.

8 0
4 years ago
Does (-24,-12) and (-15,-9) line pass through point (18,2)?
Dmitrij [34]

Find the slope using the formula [ y2-y1/x2-x1 ].

-9-(-12)/-15-(-24)

3/9

1/3

Find the y-intercept using the formula [ y = mx + b ].

y = 1/3x + b

-12 = 1/3(-24) + b

-12 = -8 + b

-4 = b

Use (18, 2) to see if the line passes through it

y = 1/3x - 4

2 = 1/3(18) - 4

2 = 6 - 4

2 = 2 TRUE

Thus, the line does pass through (18, 2).

Best of Luck!

4 0
3 years ago
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gladu [14]

Answer:

g(x)=3

Step-by-step explanation:

8 0
3 years ago
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What is the value of 2y + 3 when y +4 ?
MA_775_DIABLO [31]

Answer:

substitute y = 4 into the expression⇒(2×4)+3=8+3=11

Step-by-step explanation:

5 0
2 years ago
Solve for: <br> -5/6 + (-4/9)=
AleksAgata [21]

Answer:

all work is shown and pictured

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